Aug, 31, 2024

Vol.57 No.4

학회 연락처

논문 목록

  • 2024
  • 2023
  • 2022
  • 2021
  • 2020
  • Vol. 57 No.1
  • Vol. 57 No.2
  • Vol. 57 No.3
  • Vol. 57 No.4

Vol. 57 No.1

전처리 공정에 따른 보론 첨가 다이아몬드 박막의 성장 거동

유미영a, 이송현b, 송풍근b,*

a부산대학교 소재기술연구소, b부산대학교 재료공학과

The Korean Society of Surface Science and Engineering, Vol. 57, No. , pp. 1-7.

초록

The study investigated the impact of substrate pretreatment on depositing high-quality B-doped diamond (BDD) thin films using the HFCVD method. Films were deposited on Si and Nb substrates after sanding and seeding. Despite identical sanding conditions, BDD films formed faster on Nb due to even diamond seed distribution. Post-deposition, film average roughness (Ra) remained similar to substrate Ra, but higher substrate Ra led to decreased crystallinity. Nb substrate with 0.83 μm Ra exhibited faster crystal growth due to dense, evenly distributed diamond seeds. BDD film on Nb with 0.83 μm Ra showed a wide, stable potential window (2.8 eV) in CV results and a prominent 1332 cm-1 diamond peak in Raman spectroscopy, indicating high quality. The findings underscore the critical role of substrate pretreatment in achieving high-quality BDD film fabrication, crucial for applications demanding robust p-type semiconductors with superior electrical properties.

키워드

Boron-doped diamond; HF-CVD; Sanding process; Seeding process; Potential window

20% 황산 및 8% 황산 + 3% 옥살산에서 AA6061 합금 표면에 형성된 아노다이징 피막의 내전압 특성

박철기a, 장재확a, 현윤석a, 문성모b,c*

a(주)에이에스텍기술연구소, b재료연구소 표면기술연구본부, c과학기술연합대학원대학교 신소재공학과

The Korean Society of Surface Science and Engineering, Vol. 57, No. , pp. 8-13.

초록

Anodizing of Al6061 alloy was conducted in two different electrolytes of 20% sulfuric acid and 8% sulfuric acid + 3 % oxalic acid solutions at a constant current or decreasing current density conditions, and its dielectric breakdown voltage was measured. The surface morphology of anodic oxide films was observed by TEM and thermal treatment was carried out at 400 ℃ for 2 h to evaluate the resistance of the anodic oxide films to crack initiation. The anodic oxide film formed in 8% sulfuric acid + 3 % oxalic acid solution showed higher dielectric breakdown voltage and better resistance to crack initiation at 400 ℃ than that formed in 20% sulfuric acid solution. The dielectric breakdown voltage increased 6 ~12% by applying decreasing current density comparing with a constant current density.

키워드

Anodizing; Oxide film; Al6061 alloy; Constanct current density; Decreasing current density.

Arc Ion Plating으로 증착된 CrAlN 코팅막의 표면 특성에 미치는 Al 원소의 영향

김재운a,b, 임병석a, 윤영신a, 안병우a, 최한철b,*

a제이앤엘테크 플라즈마코팅 연구소, b조선대학교 치의예과

The Korean Society of Surface Science and Engineering, Vol. 57, No. , pp. 14-21.

초록

For this study, CrAlN multilayer coatings were deposited on SKD61 substrates using a multi-arc ion plating technique. The structural characteristics of the CrAlN multilayer coatings were evaluated using X-ray diffraction (XRD) and Scanning Electron Microscopy (SEM). Additionally, the adhesion of the coatings was assessed through scratch testing, and the mechanical strength was evaluated using nanoindentation and tribometric tests for frictional properties. The results show that the CrAlN multilayer coatings possess a uniform and dense structure with excellent mechanical strength. Hardness measurements indicated that the CrAlN coatings have high hardness values, and both the coating adhesion and wear resistance were found to be improved compared to CrN. The addition of aluminum is anticipated to contribute to enhanced durability and wear resistance.

키워드

CrAlN Coating; PVD; Linear ion source; Mass Production.

리튬이차전지 양극 분말 소재 위 탄소나노튜브의 직접 성장 거동 고찰

한현호, 이종환, 정구환*

강원대학교 대학원 고기능 소자 및 소재 기술 고도화 협동과정

The Korean Society of Surface Science and Engineering, Vol. 57, No. , pp. 22-30.

초록

This study reports a direct growth of carbon nanotubes (CNTs) on the surface of LiCoO2 (LCO) powders to apply as highly efficient cathode materials in lithium-ion batteries (LIB). The CNT synthesis was performed using a thermal chemical vapor deposition apparatus with temperatures from 575 to 625 °C. Ferritin molecules as growth catalyst of CNTs were mixed in deionized (DI) water with various concentrations from 0.05 to 1.0 mg/mL. Then, the LCO powders was dissolved in the ferritin solution at a ratio of 1g/mL. To obtain catalytic iron nanoparticles on the LCO surface, the LCO-ferritin suspension was dropped in silicon dioxide substrates and calcined under air at 550°C. Subsequently, the direct growth of CNTs on LCO powders was performed using a mixture of acetylene (10 sccm) and hydrogen (100 sccm) for 10 min. The growth behavior was characterized by scanning and transmission electron microscopy, Raman scattering spectroscopy, X-ray diffraction, and thermogravimetric analysis. The optimized condition yielding high structural quality and amount of CNTs was 600 °C and 0.5 mg/mL. The obtained materials will be developded as cathode materials in LIB.

키워드

Direct growth; Carbon nanotubes; LCO powder; Cathode materials; Lithium ion batteries.

셀룰로오스 나노 섬유를 활용한 리튬 흡착 및 추출 연구

정래일, 최진섭*

인하대학교 화학·화학공학 융합학과

The Korean Society of Surface Science and Engineering, Vol. 57, No. , pp. 31-37.

초록

The surge in demand for lithium is primarily fueled by the expanding electric vehicle market, the necessity for renewable energy storage, and governmental initiatives aimed at achieving carbon neutrality. This study proposes a straightforward method for lithium extraction utilizing cellulose nanofiber (CNF) via a vacuum filtration process. This approach yields a porous CNF film, showcasing its potential utility as a lithium extractor and indicator. Given its abundance and eco-friendly characteristics, cellulose nanofiber (CNF) emerges as a material offering both economic and environmental advantages over traditional lithium extraction techniques. Hence, this research not only contributes to lithium recovery but also presents a sustainable solution to meet the growing demand for lithium in energy storage technologies.

키워드

Cellulose nanofiber (CNF); Lithiation; Lithium extraction; Lithium indicator.

아세톤의 선택적 감지를 위한 In2O3 zig-zag nanocolumns

정재한a, 김호균a, 조윤행a, 황준호b, 박시형a, 손성우b, 정수빈a, 이은솔a, 이광재c,*, 심영석a,*

a한국기술교육대학교 에너지신소재화학공학부, b연세대학교 신소재공학과,c상명대학교 정보보안공학과

The Korean Society of Surface Science and Engineering, Vol. 57, No. , pp. 38-48.

초록

We fabricated In2O3 zig-zag nanocolumns(ZZNCs) by oblique angle deposition method based on e-beam evaporator for highly sensitive and selective CH3COCH3 sensor. Our results indicate that as the ZZNCs layer stacks, the gas response also increases. In comparison to thin films, ZZNCs at 5 layer show a 117-fold enhancement in gas response and a rapid response time (~2 s). When measured with various gases, it showed a high selectivity towards acetone. Under conditions of R.H. 80%, exposure to CH3COCH3 gas theoretically indicated a detection limit of 1.2 part-per-billion(ppb). These results suggest the potential of In2O3 ZZNCs as a breath analyzer for the diagnosis of diabetes.

키워드

질화알루미늄 나노분말의 부착과 이를 활용한 초소수성 표면 제작

이광석a, 최헌주b, 조한동b,*

a선박해양플랜트연구소 친환경연료추진연구센터, b국립목포대학교 기계공학과

The Korean Society of Surface Science and Engineering, Vol. 57, No. , pp. 49-56.

초록

Superhydrophobic surfaces have been expected to be able to provide considerable performance improvements and introduce innovative functions across diverse industries. However, representative methods for fabricating superhydrophobic surfaces include etching the substrate or attaching nano-sized particles, but they have been limited by problems such as applicability to only a few materials or low adhesion between particles and substrates, resulting in a short lifetime of superhydrophobic properties. In this work, we report a novel coating technique that can achieve superhydrophobicity by electrophoretic deposition of aluminum nitride (AlN) nanopowders and their self-bonding to form a surface structure without the use of binder resins through a hydrolysis reaction. Furthermore, by using a water-soluble adhesive as a temporary shield for the electrophoretic deposited AlN powders, hierarchical aluminum hydroxide structures can be strongly adhered to a variety of electrically conductive substrates. This binder-free technique for creating hierarchical structures that exhibit strong adhesion to a variety of substrates significantly expands the practical applicability of superhydrophobic surfaces.

키워드

Superhydrophobic surface; Aluminum nitride nanopowder; Electrophoretic deposition; Hydrolysis reaction

Vol. 57 No.2

NCM 리튬 이온 배터리의 양극 표면 코팅물질에 따른 성능변화

유진욱, 표성규*

중앙대학교 융합공학부

The Korean Society of Surface Science and Engineering, Vol. 57, No. , pp. 57-70.

초록

Nickel-cobalt-manganese (NCM) lithium-ion batteries(LIBs) are increasingly prominent in the energy storage system due to their high energy density and cost-effectiveness. However, they face significant challenges, such as rapid capacity fading and structural instability during high-voltage operation cycles. Addressing these issues, numerous researchers have studied the enhancement of electrochemical performance through the coating of NCM cathode materials with substances like metal oxides, lithium composites, and polymers. Coating these cathode materials serves several critical functions: it acts as a protection barrier against electrolyte decomposition, mitigates the dissolution of transition metals, enhances the structural integrity of the electrode, and can even improve the ionic conductivity of the cathode. Ultimately, these improvements lead to better cycle stability, increased efficiency, and enhanced overall battery life, which are crucial for the advancement of NCM-based lithium-ion batteries in high-demand applications. So, this paper will review various cathode coating materials and examine the roles each plays in improving battery performance.

키워드

Lithium ion batteries; surface coating; cathode; electrochemical performance.

라만 분광법을 이용한 반도체 공정 중 표면 분석

최태민, 유진욱, 정은수, 이채연, 이화림, 김동현, 표성규*

중앙대학교 융합공학부

The Korean Society of Surface Science and Engineering, Vol. 57, No. , pp. 71-85.

초록

This article provides an overview of Raman spectroscopy and its practical applications for surface analysis of semiconductor processes including real-time monitoring. Raman spectroscopy is a technique that uses the inelastic scattering of light to provide information on molecular structure and vibrations. Since its inception in 1928, Raman spectroscopy has undergone continuous development, and with the advent of SERS(Surface Enhanced Raman Spectroscopy), TERS(Tip Enhanced Raman Spectroscopy), and confocal Raman spectroscopy, it has proven to be highly advantageous in nano-scale analysis due to its high resolution, high sensitivity, and non-destructive nature. In the field of semiconductor processing, Raman spectroscopy is particularly useful for substrate stress and interface characterization, quality analysis of thin films, elucidation of etching process mechanisms, and detection of residues.

키워드

Raman Spectroscopy; Semiconductor Processing; Surface analysis; In-situ monitoring.

Al6061 합금의 PEO 피막 형성에 미치는 Na2SiO3 농도의 영향

이병건a, 한영욱a, 장기범b, 조성열a,*

a(주)영광와이케이엠씨 연구개발센터, b(주)영광와이케이엠씨

The Korean Society of Surface Science and Engineering, Vol. 57, No. , pp. 86-91.

초록

In this study, we investigated the effect of Na2SiO3 concentration on the Plasma Electrolytic Oxidation(PEO) film formation of Al6061 alloy. The morphology of the PEO films were examined by Optical Microscope(OM) and Scanning Electron Microscope(SEM). PEO film thickness increases as the Na2SiO3 concentration increases. The elemental analysis of PEO films was conducted using Dispersive X-ray Spectrometer(EDS). The cross-sectional elemental analysis result shows that the Si concentration tends to increase as the concentration of Na2SiO3 increases. X-Ray Diffraction(XRD) analysis was performed to confirm the degree of phase change according to Na2SiO3 concentration. In addition, Vickers hardness was measured to confirm the mechanical strength of the PEO film. As the concentration of Na2SiO3 increases, the hardness value also tends to increase.

키워드

Plasma electrolytic oxidation; Unipolar pulse; Al6061; Sodium silicate

싸이클론 전해환원방법을 이용한 LiBr 용액내의 Cu 불순물 제거에 관한 연구

박다정a, 이규환a,b*

a한국재료연구원 나노표면재료연구본부 전기화학연구실, b과학기술연합대학원대학교 신소재공학전공

The Korean Society of Surface Science and Engineering, Vol. 57, No. , pp. 92-97.

초록

The LiBr aqueous solution, which is the absorption liquid of absorption refrigerator, must be replaced periodically because the concentration of impurities such as Cu2+, Fe2+, Ca2+, etc., increases due to corrosion of the tubes as the period of use increases, and the refrigeration efficiency decreases significantly. In order to reuse the waste absorption liquid, flocculation-precipitation method is mainly applied to precipitate the impurities, which requires hundreds of times the concentration of impurities and generates additional waste. In this study, a process for removing Cu ion impurities from cyclone electrolyzer by electrolytic reduction is presented in a small-scale facility without additional waste. It was confirmed that Cu ion impurities can be removed down to 1 ppm by electrolytic reduction process, and to further improve the removal rate, the mass transfer rate was increased by using a cyclone electrolyzer. The removal rate of Cu ions increased with the increase of flow rate and current density, and it was confirmed that Cu was removed at a rate of 1.48 ppm/h under the condition of 330 mL/sec and 2.5 mA/cm2.

키워드

Absorption refrigerator, Lithium bromide, Copper ion impurity, Electrowinning, Cyclone

안료배합용 실리카 입자사이즈에 따른 근적외선 반사율을 향상시킨 고기능성 도료 제조

우은석a, 노윤석a, 이진호a, 최용욱b*, 김보라a*

a이에이바이오스, b한국생산기술연구원 에너지시스템그룹

The Korean Society of Surface Science and Engineering, Vol. 57, No. , pp. 98-104.

초록

In order to overcome the urban heat island effect, highly functional paint is attracting attention as a promising means by shielding heat on the structure (building) surface. When a paint was prepared containing nano-sized silica particles, the heat-insulating performance was relatively higher than that of paints with other sizes. In addition, developed paints showed enhanced properties such as chemical resistance and abrasion resistance test because of the presence of nano-sized silica included in functional paint.

키워드

Nano silica, Size trend, Infrared reflective coating, Urban heat island, Surface treatment

H13 강의 템퍼링 조건에 따른 템퍼링 거동 및 기계적 물성 효과

권기훈a,c, 최병호a, 손윤호b, 이영국c, 문경일a,*

a한국생산기술연구원 지능화뿌리기술연구소 주문형생산연구부문 b㈜ 유진 SMC c연세대학교 신소재공학과

The Korean Society of Surface Science and Engineering, Vol. 57, No. , pp. 105-114.

초록

Tempering behavior and mechanical properties in AISI H13 steel, quenched and tempered from 300 ℃ to 700 ℃ for different tempering time (1, 2, 5, 10, 20 hr) were quantitatively investigated by scanning electron microscopy (SEM), x-ray diffractometer (XRD), impact test machine, rockwell apparatus, ball-on-disk tester. Under the condition that the tempering time is 2 hours, the hardness increases slightly as the tempering temperature increases, but decreases rapidly when the tempering temperature exceeds 500 ℃, while the impact energy increases in proportion to the tempering temperature. Friction tests were conducted in dry condition with a load of 30 N, and the friction coefficient and wear rate according to tempering conditions were measured to prove the correlation with hardness and microstructure. In addition, primary tempering from 300 ℃ to 700 ℃ was performed at various times to establish a kinetic model to predict hardness under specific tempering conditions.

키워드

hot-work steel; tempering condition; impact energy; wear resistance

리튬 이온 배터리 음극에서 비닐렌 카보네이트가 매개하는 고체 전해질 계면 형성 메커니즘 연구

이진희a, 정지윤a, 하재윤a,b, 김용태c,*, 최진섭a,b,*

a인하대학교 화학·화학공학융합학과, b지속가능한 에너지 부품소재 핵심연구지원센터 c전남대학교 화공생명공학과

The Korean Society of Surface Science and Engineering, Vol. 57, No. , pp. 115-124.

초록

In advancing Li-ion battery (LIB) technology, the solid electrolyte interface (SEI) layer is critical for enhancing battery longevity and performance. Formed during the charging process, the SEI layer is essential for controlling ion transport and maintaining electrode stability. This research provides a detailed analysis of how vinylene carbonate (VC) influences SEI layer formation. The integration of VC into the electrolyte markedly improved SEI properties. Moreover, correlation analysis revealed a connection between electrolyte decomposition and battery degradation, linked to the EMC esterification and dicarboxylate formation processes. VC facilitated the formation of a more uniform and chemically stable SEI layer enriched with poly(VC), thereby enhancing mechanical resilience and electrochemical stability. These findings deepen our understanding of the role of electrolyte additives in SEI formation, offering a promising strategy to improve the efficiency and lifespan of LIBs.

키워드

Lithium-ion battery; Solid electrolyte interface layer; Electrolyte decomposition; Vinylene carbonate

Vol. 57 No.3

A review : atomic layer etching of metals

장윤종a, 길홍성a, 김경찬a, 김주영c, 박우창a, 편도성d, 이지연d, 염근영a,b,c*

a School of Advanced Materials Science and Engineering, Sungkyunkwan University, Suwon 16419, Republic of Korea b SKKU Advanced Institute of Nano Technology (SAINT), Sungkyunkwan University, Suwon 16419, Republic of Korea c Department of Photovoltaic System Engineering, Sungkyunkwan University, Suwon 16419, Republic of Korea d Department of Semiconductor Display Engineering, Sungkyunkwan University, Suwon 16419, Republic of Korea

The Korean Society of Surface Science and Engineering, Vol. 57, No. , pp. 125-139.

초록

As the limits of semiconductor integration are approached, the challenges in semiconductor processes have intensified. And, for the production of semiconductors with dimensions under a few nanometers and to resolve the issues related to nanoscale device fabrication, research on atomic layer etching (ALE) technology has been conducted. The investigation related to ALE encompasses not only silicon and dielectric materials but also metallic materials. Particularly, there is an increasing need for ALE in next-generation metal materials that could replace copper in interconnect materials. This brief review will summarize the concept and methods of ALE and describe recent studies on potential next-generation metal replacements for copper, along with their ALE processes.

키워드

atomic layer etching (ALE); metal; plasma ALE; thermal ALE.

부식 방지제에 따른 코발트의 화학 기계적 연마 특성 및 표면 분석

정은수, 표성규*

중앙대학교 융합공학부

The Korean Society of Surface Science and Engineering, Vol. 57, No. , pp. 140-154.

초록

As the trend towards miniaturization in semiconductor integration process, the limitations of interconnection metals such as copper, tungsten have become apparent, prompting research into the emergence of new materials like cobalt and emphasizing the importance of studying the corresponding process conditions. During the chemical mechanical polishing (CMP) process, corrosion inhibitors are added to the slurry, forming passivation layers on the cobalt surface, thereby playing a crucial role in controlling the dissolution rate of the metal surface, enhancing both removal rate and selectivity. This review investigates the understanding of the cobalt polishing process and examines the characteristics and behavior of corrosion inhibitors, a type of slurry additive, on the cobalt surface. Among the corrosion inhibitors examined, benzotriazole (BTA), 1,2,4-triazole (TAZ), and potassium oleate (PO) all improved surface characteristics through their interaction with cobalt. These findings provide important guidelines for selecting corrosion inhibitors to optimize CMP processes for cobalt-based semiconductor materials. Future research should explore combinations of various corrosion inhibitors and the development of new compounds to further enhance the efficiency of semiconductor processes.

키워드

Chemical Mechanical Polishing; Corrosion Inhibitor; Passivation layer; Slurry.

열플라즈마를 이용한 탄소 나노 물질의 합성 및 특성에 관한 연구

강성표, 김태희*

원광대학교 화학공학과

The Korean Society of Surface Science and Engineering, Vol. 57, No. , pp. 155-164.

초록

Physical properties of carbon nanomaterials are dependent on their nanostructures and they are modified by diverse synthesis methods. Among them, thermal plasma method stands out for synthesizing carbon nanomaterials by controlling chemical and physical reactions through various design and operating conditions such as plasma torch type, plasma gas composition, power capacity, raw material injection rate, quenching rate, kinds of precursors, and so on. The method enables the production of carbon nanomaterials with various nanostructures and characteristics. The high-energy integration at high-temperature region thermal plasma to the precursor is possible to completely vaporize precursors, and the vaporized materials are rapidly condensed to the nanomaterials due to the rapid quenching rate by sharp temperature gradient. The synthesized nanomaterials are averagely in several nanometers to 100 nm scale. Especially, the thermal plasma was validated to synthesize low-dimensional carbon nanomaterials, carbon nanotubes and graphene, which hold immense promise for future applications.

키워드

carbon nanomaterials; synthesis; thermal plasma; nanomaterials.

반도체 메모리 소자 제조에서 High Aspect Ratio Contact 식각 연구 동향

탁현우a, 박명호b, 이준수c, 최찬혁b, 김봉선a, 장준기a, 김은구d, 김동우a, 염근영a,b,c,*

a성균관대학교 신소재공학과, b성균관대학교 나노과학기술학과, c성균관대학교 태양광시스템공학협동과정, d성균관대학교 반도체디스플레이공학과

The Korean Society of Surface Science and Engineering, Vol. 57, No. , pp. 165-178.

초록

In semiconductor memory device manufacturing, the capability for high aspect ratio contact (HARC) etching determines the density of memory device. Given that there is no standardized definition of "high" in high aspect ratio, it is crucial to continuously monitor recent technology trends to address technological gaps. Not only semiconductor memory manufacturing companies such as Samsung Electronics, SK Hynix, and Micron but also semiconductor manufacturing equipment companies such as Lam Research, Applied Materials, Tokyo Electron, and SEMES release annual reports on HARC etching technology. Although there is a gap in technological focus between semiconductor mass production environments and various research institutes, the results from these institutes significantly contribute by demonstrating fundamental mechanisms with empirical evidence, often in collaboration with industry researchers. This paper reviews recent studies on HARC etching and the study of dielectric etching in various technologies.

키워드

High Aspect Ratio Contact(HARC) Etching; Dielectric Etching; Silicon Oxide Etching; Silicon Nitride Etching; Memory Device Manufacturing.

Enhanced Photocatalytic Disinfection Efficiency through TiO2/WO3 Composite Synthesis and Heat Treatment Optimization

Sang-Hee Kima, Seo-Hee Kimb, Jun Kangc, Myeong-Hoon Leed, Yong-Sup Yuna,*

aDepartment of Coast Gurad Sutdies, National Korea Maritime and Ocean University, Busan 49112, Korea bDepartment of Ocean Advanced Materials Convergence Engineering, National Korea Maritime and Ocean University, Busan 49112, Korea cDepartment of Marine System Engineering, National Korea Maritime and Ocean University, Busan 49112, Korea dKorea Institute of Corrosion Science and Technology, National Korea Maritime and Ocean University, Busan 49112, Korea

The Korean Society of Surface Science and Engineering, Vol. 57, No. , pp. 179-191.

초록

This study focuses on improving the photocatalytic degradation efficiency by synthesizing a TiO2/WO3 composite. Given the environmental significance of photocatalysis and the limitations posed by TiO2's large bandgap and high electron recombination rate, we explored doping, surface modification, and synthesis strategies. The composite was created using a ball mill process and heat treatment, analyzed with field emission scanning electron microscope, high resolution X-ray diffraction, Raman microscope, and UV-Vis/NIR spectrometer to examine its morphology, composition and absorbance. We found that incorporating WO3 into the TiO2 lattice forms a Wx-Ti1-x-O2 solution, with optimal WO3 content reducing the band gap and enhancing sterilization efficiency by inhibiting the anatasese to rutile transition. This contributes to the field by offering a way to overcome TiO2's limitations and improve photocatalytic performance.

키워드

TiO2; WO3; Photocatalysis; Ball mill; Heat treatment

구리 배관의 Sn 첨가에 따른 응력 및 다양한 환경에서의 부식 특성

김세림a, 김의준a, 이명훈b, 이승효a,*

a한국해양대학교 해양신소재융합공학과, b한국부식방식연구센터

The Korean Society of Surface Science and Engineering, Vol. 57, No. , pp. 192-200.

초록

Cu as a heat exchanger tube is an important component in thermal fluid transfer. However, Cu tubes are exposed to stress in certain environments, leading to stress corrosion cracking (SCC). In this study, the effect of Sn addition on microstructure and corrosion characteristics was examined. The microstructural examination revealed the presence of columnar crystal and a grain refinement due to the addition of Sn. Electrochemical measurements showed that the 5 wt.% NH3 environment was the most vulnerable environment to Cu corrosion, and the corrosion current density increased as stress increased. The immersion test exhibited the formation of Cu2O and Cu(OH)2 corrosion product in 3.5 wt.% NaCl and 5 wt.% NH3 environments, respectively. Results indicated that Sn addition to Cu was an important factor in improving the mechanical strength.

키워드

Cu tube; Sn addition; U-bending; Stress corrosion cracking (SCC); Immersion test; Corrosion characteristics.

Al6061 합금의 양극산화 봉공 처리 방법에 따른 양극산화 피막의 내화학 특성 비교

한영욱a, 이상섭a, 이준석a 장기범b, 조성열a,*

a(주)영광와이케이엠씨 연구개발센터, b(주)영광와이케이엠씨

The Korean Society of Surface Science and Engineering, Vol. 57, No. , pp. 201-207.

초록

This study compared the chemical resistance properties according to various sealing treatment methods for the anode film formed during the anodization process of Al6061 alloy. Al6061 aluminum was used in four different sealing treatment methods: boiling water sealing, lithium sealing, nickel sealing, and pressurized sealing, and each sample was evaluated for corrosion resistance through a 5% HCl bubble test and the microstructure was observed through a scanning electron microscope(SEM). According to the results, corrosion resistance increased as time and temperature increased in all sealing treatment methods. Relatively, corrosion resistance was high in the order of boiling water sealing, lithium sealing, nickel sealing, and pressure sealing, and the best corrosion resistance was found in pressure sealing. These research results can be helpful in selecting a process necessary to improve the efficiency and performance of anodizing process in the industrial field using aluminum alloys.

키워드

Anodizing; Oxide film; Al6061 alloy; Sulfuric acid anodizing; Sealing; Acid resistance; Hydrogen Chloride bubble stream.

식각공정의 신뢰성 향상을 위한 모니터링 기술에 관한 연구

김경남*

대전대학교 반도체공학과

The Korean Society of Surface Science and Engineering, Vol. 57, No. , pp. 208-213.

초록

With the development of industry, miniaturization and densification of semiconductor components are rapidly progressing. Particularly, as demand surges across various sectors, efficiency in productivity has emerged as a crucial issue in semiconductor component manufacturing. Maximizing semiconductor productivity requires real-time monitoring of semiconductor processes and continuous reflection of the results to stabilize processes. However, various unexpected variables and errors in judgment that occur during the process can cause significant losses in semiconductor productivity. Therefore, while the development of a reliable manufacturing system is important, the importance of developing sensor technology that can complement this and accurately monitor the process is also growing. In this study, conducted a basic research on the concept of diagnostic sensors for thickness based on the physical changes of thin films due to etching. It observed changes in resistance corresponding to variations in thin film thickness as etching processes progressed, and conducted research on the correlation between these physical changes and thickness variations. Furthermore, to assess the reliability of thin film thickness measurement sensors, it conducted multiple measurements and comparative analyses of physical changes in thin films according to various thicknesses.

키워드

Plasma; Atomic Layer Etching; Thickness; Thin Film, Sensor.

단일벽 탄소나노튜브를 이용한 리튬이온전지용 실리콘-흑연 기반 복합전극 설계

최진영a, 최정민b, 이승효c, 강준d, 김대욱a, 김혜민d*

a한국생산기술연구원 울산본부 저탄소에너지그룹, b한국해양대학교 해양인공지능융합전공, c한국해양대학교 해양신소재융합공학과, d한국해양대학교 기관시스템공학부

The Korean Society of Surface Science and Engineering, Vol. 57, No. , pp. 214-220.

초록

In this study, three-dimensional (3D) networks structure using single-walled carbon nanotubes (SWCNTs) for Si-graphite composite electrode was developed and studied about effects on the electrochemical performances. To investigate the effect of SWCNTs on forming a conductive 3D network structure electrode, zero-dimensional (0D) carbon black and different SWCNTs composition electrode were compared. It was found that SWCNTs formed a conductive network between nano-Si and graphite particles over the entire area without aggregation. The formation of 3D network structure enabled to effective access for lithium ions leading to improve the c-rate performance, and provided cycle stability by alleviating the Si volume expansion from flexibility and buffer space. The results of this study are expected to be applicable to the electrode design for high-capacity lithium-ion batteries.

키워드

Silicon; Composite electrode; Lithium-ion batteries; Carbon nanotube; 3D network.

전해연마를 이용한 STS 304의 부식방지 효과 연구

오재환, 김우혁, 조혜원, 곽병관, 윤상화, 유봉영*

한양대학교 재료화학공학과

The Korean Society of Surface Science and Engineering, Vol. 57, No. , pp. 221-224.

초록

The 304 stainless steel has good corrosion resistance, so it is used in various industries. However, in an environment like seawater, stainless steel can be damaged by chloride ions, resulting in surface corrosion such as pitting and crevice corrosion. Electropolishing is a technique that smooths the surface and creates a passivation layer that can resist corrosion. In this study, electropolishing was applied as a surface finish to increase the smoothness of the metal surface and its corrosion resistance. We confirmed the topology of the electropolished surface of stainless steel by optical microscope and evaluated the corrosion resistance characteristics of electropolished stainless steel through a potentiodynamic experiment.

키워드

STS 304; Electropolishing; Corrosion resistance.

Vol. 57 No.4

플라스틱 도금 기술에 대한 이해와 동향

노지왕, 배인경, 김현우, 김선규*

국립부경대학교 공업화학·고분자공학부 공업화학전공

The Korean Society of Surface Science and Engineering, Vol. 57, No. , pp. 225-233.

초록

The plastic plating process refers to coating a thin metal film onto a plastic surface. This technique has become essential for replacing costly metal products while maintaining equivalent performance, making plastic plating a critical technology. This paper presents an overview of the methods and future prospects of plastic plating.

키워드

Plastic plating; Electroplating; Electroless plating; 3D printing

골이식재의 표면 특성 연구 동향과 유효성 분석

정용훈, 이계욱, 정태곤*

오송첨단의료산업진흥재단 첨단의료기기개발지원센터

The Korean Society of Surface Science and Engineering, Vol. 57, No. , pp. 234-253.

초록

As the population ages, the importance of effective bone disease treatments is increasing, highlighting the role of bone grafts. Bone grafts are categorized into natural (autografts, allografts, xenografts) and synthetic (ceramics, polymers). Natural grafts have excellent regenerative abilities but pose biological risks, while synthetic grafts are biocompatible but less effective in regeneration. Various studies aim to enhance the safety and efficacy of bone grafts, significantly altering their surface properties. This review examines these studies and the resulting surface changes, aiming to guide future research and clinical applications.

키워드

Bone graft, Surface characteristic, Surface effectiveness, Bone regeneration, Biomaterials

A Review on Dielectric Breakdown of Anodic Oxide Films on Aluminum Alloys

Hien Van Phama,b, Cheolnam Yanga and Sungmo Moona,b,*

aEnergy & Environment Materials Research Division, Korea Institute of Materials Science, 797 Changwondaero, Seongsan-gu, Changwon, Gyeongnam 51508, Korea bAdvanced Materials Engineering, Korea University of Science and Technology, 217 Gajeong-ro, Yuseonggu, Daejeon 34113, Korea

The Korean Society of Surface Science and Engineering, Vol. 57, No. , pp. 254-264.

초록

This paper reviews the dielectric breakdown resistance and behavior of anodic oxide films in air environment. It begins with a description of the dielectric breakdown mechanisms of dielectric materials. The paper then introduces different types of dielectric materials and compares them in terms of dielectric strength, thermal conductivity, mechanical strength and cost. Next, the paper summarizes various fabrication methods for dielectric aluminum oxide layers, discussing the advantages and disadvantages of each method. Finally, it provides an overview of current studies on the dielectric breakdown properties of anodic aluminum oxide films formed on different aluminum alloys in various electrolytes.

키워드

Aluminum alloys, Anodic oxide film, Dielectric breakdown, Dielectric material

환원 그래핀 옥사이드 복합 촉매가 코팅된 스크린 프린트 탄소전극 기반 Indole-3-Acetic Acid 전기화학분석법 연구

원유진a,c, 김민영a, 박영배c*, 이규환a,b*

a한국재료연구원 표면기술본부, b한국과학기술연합대학원대학교 신소재공학부, c국립안동대학교 반도체·신소재공학과 청 정에너지 소재기술연구센터

The Korean Society of Surface Science and Engineering, Vol. 57, No. , pp. 265-273.

초록

An amperometric sensor for measuring indole-3-acetic acid (IAA) was studied based on a screen-printed carbon electrode (SPCE) coated with a reduced graphene oxide composite electrocatalyst. The PEI-GO dispersion is uniformly formed through a nucleophilic substitution reaction between the active amine group of Polyethyleneimine (PEI) and the epoxide group exposed on the surface of graphene oxide. And The 3-dimensional PEI-rGO AG (Polyethyleneimine-reduced graphene oxide aerogel) complex was easily prepared through simple heat treatment of the combined PEI-GO dispersion. The proposed composite catalyst electrode, PEI-rGO AG/SPCE, showed a two linear relationship in the low and high concentrations in IAA detection, and the linear equation was Ipa = 0.2883C + 0.0883 (R2=0.9230) at low concentration and Ipa = 0.00464C + 0.6623 (R2=0.9894) at high concentration was proposed, and the detection limit was calculated to be 203.5nM±33.2nM. These results showed the applicability of the PEI-rGO AG composite catalyst as an electrode material for electrocatalysts for the detection of IAA.

키워드

Indole-3-Acetic Acid, Electrochemical sensor, Reduced graphene oxide aerogel, Conducting polymer composite, Polyethyleneimine

고전류밀도 전해도금 공정에서 PEG 첨가 효과

강병재a, 윤준서a, 박종재a, 우태규b*, 박일송a,c*

a전북대학교 금속공학과 b전북대학교 유연인쇄전자전문대학원 및 로스알라모스연구소-전북대학교 한국공학연구소 c전북대학교 신소재공학부 및 신소재개발연구센터

The Korean Society of Surface Science and Engineering, Vol. 57, No. , pp. 274-284.

초록

In this study, copper foil was electroplated under high current density conditions. We used Polyethylene Glycol (PEG), known for its thermal stability and low decomposition rate, as an inhibitor to form a stable and smooth copper layer on the titanium cathode. The electrolyte was composed of 50 g/L CuSO4 and 100 g/L H2SO4, MPSA as an accelerator, JGB as a leveler, and PEG as a suppressor, and HCl was added as chloride ions for improving plating efficiency. The copper foil electroplated in the electrolyte added PEG which induced to inhibit the growth of rough crystals. As a result, the surface roughness value was reduced, and a uniform surface was formed over a large area. Moreover, the addition of PEG led to priority growth to the (111) plane and the formation of polygonal crystals through horizontal and vertical growth of crystals onto the cathode. In addition, the grains became fine when more than 30 ppm of PEG was added. As the microcrystalline structure changed, mechanical and electrical properties were altered. With the addition of PEG, the tensile strength increased due to grain refinement, and the elongation was improved due to the uniform surface. However, as the amount of PEG added increased, the corrosion rate and resistivity increased due to grain refinement. Finally, it was possible to manufacture a copper foil with excellent electrical and mechanical properties and the best surface properties when electroplating was carried out under the condition of additives with Cl- 20 ppm, MPSA 10 ppm, JGB 5 ppm, and PEG 10 ppm.

키워드

Indole-3-Acetic Acid, Electrochemical sensor, Reduced graphene oxide aerogel, Conducting polymer composite, Polyethyleneimine

Supercapacitor 전극용 최적의 mesoporous carbon 합성을 위한 PVDC-resin 전구체로 부터 CuO를 이용한 화학적 활성화 과정 연구

전상은a,b,c*

a경북대학교 첨단소재공학부, b경북대학교 미래 모빌리티용 시스템반도체 혁신인재 교육연구단, c경북대학교 자동차부품 소재연구소

The Korean Society of Surface Science and Engineering, Vol. 57, No. , pp. 285-295.

초록

PVDC-resin transforms into porous carbon through the removal of heteroatoms during heat treatment. When PVDC-resin mixed with chemical agent undergoes heat treatment, it transforms into porous carbon with a significant surface area. In this study, we aim to produce porous carbon using PVDC-resin as a precursor by mixing it with an inexpensive CuO agent in various ratios (1:1, 1:2) and varying the process temperatures (750°C, 950°C). To utilize the developed porous carbon as electrode for supercapacitors, this study explored the formation of micropores and mesopores during the activation process. The porous characteristics and specific surface area of the synthesized porous carbon were estimated using N2 isotherm. The specific capacitance and rate capability required for supercapacitor electrodes were evaluated through cyclic voltammetry. Experimental results demonstrated that when the precursor and agent were mixed in a 1:2 ratio, a high surface areal carbon with numerous micropores and mesopores was obtained. When the activation was performed at 950°C, no impurities remained from the agent, resulting in high rate performance. The porous carbon synthesized using PVDC-resin and CuO demonstrated high specific surface area and excellent rate capability, indicating its potential as an electrode material for supercapacitors.

키워드

Porous carbon; PVDC-resin; CuO; Rate capability, Supercapacitor

여러가지 치과용 자기변형 초음파 스케일러 팁이 티타늄 표면특성에 미치는 영향

양민철, 정석환, 김설, 설승환, 이승규, 유상준*, 김병옥*

조선대학교 치과대학 치주과학교실

The Korean Society of Surface Science and Engineering, Vol. 57, No. , pp. 296-305.

초록

The aim of this in vitro study was to evaluate the changes in the roughness and weight of titanium discs treated with 3 different types of magnetostrictive ultrasonic scaler tip. Eighty identical disks (10 mm in diameter), 50 for surface roughness and 30 for weight change, were investigated in this study. For this study, 3 types of scaler tip were used as follows; Powerline(FSI-PWR-1000), Slimline(FSI-SLI-1000), and Thinsert(-16 00037374). The power was set to high power(HP), medium power(MP), and low power(LP), in the blue zone recommended by the manufacturer. Surface topography analysis was carried out using scanning electron microscopy (SEM). Surface roughness measurements, the average surface roughness (Ra) and mean roughness profile depth (Rz), were compared between treated and non-treated surfaces with a profilometer. A PowerLINE-MP of magnetostrictive ultrasonic scalers for implant patients might be recommended when considering changes in the roughness and weight of titanium discs.

키워드

Titanium alloy, Ultrasonic therapy, Dental scaling

펨토초 레이저 표면처리 기술을 이용한 골절합용 티타늄 플레이트의 친·소수 특성 제어 연구

최훈국a, 정영준a, 정형도b, 김승표b, 문대선b, 송하림b,c, 손익부a,*

a광주과학기술원 고등광기술연구소, b(주)케이제이메디텍, c전남대학교 치의학전문대학원 치과보철학교실

The Korean Society of Surface Science and Engineering, Vol. 57, No. , pp. 306-316.

초록

We conducted experiments to control the hydrophilic/hydrophobic properties by adjusting line and grid patterns on the surface of medical bone fixation plates using a femtosecond laser. Basic experiments were conducted using pure titanium and titanium alloy (6% alumina, 4% vanadium). The spacing of the line and grid patterns was adjusted, and surface properties were confirmed using contact angle measurement equipment. We demonstrated the feasibility of controlling hydrophilic/hydrophobic properties through the patterns of lines and grids. Based on the results of the basic experiments, surface treatment was applied to medical bone fixation plates currently used in clinical practice. Through laser processing, we confirmed a contact angle of approximately 9.18° for hydrophilicity and approximately 101.07° for hydrophobicity. We confirmed that easy control of hydrophilic/hydrophobic properties is achievable using laser processing technology and anticipate its application in various medical component fields.

키워드

Medical bone fixation plate; Hydrophobic; Hydrophilic; Surface treatment; Femtosecond laser

LiFePO4 분말 위 탄소나노튜브의 직접 성장과 리튬이온전지 양극재로의 적용

한현호, 이종환, 정구환*

강원대학교 대학원 고기능 소자 및 소재 기술 고도화 협동과정

The Korean Society of Surface Science and Engineering, Vol. 57, No. , pp. 317-324.

초록

We demonstrate a direct growth of carbon nanotubes (CNTs) on the surface of LiFePO4 (LFP) powders for use in lithium-ion batteries (LIB). LFP has been widely used as a cathode material due to its low cost and high stability. However, there is a still enough room for development to overcome its low energy density and electrical conductivity. In this study, we fabricated novel structured composites of LFP and CNTs (LFP-CNTs) and characterized the electrochemical properties of LIB. The composites were prepared by direct growth of CNTs on the surface of LFP using a rotary chemical vapor deposition. The growth temperature and rotation speed of the chamber were optimized at 600 °C and 5 rpm, respectively. For the LIB cell fabrication, a half-cell was fabricated using polytetrafluoroethylene (PTFE) and carbon black as binder and conductive additives, respectively. The electrochemical properties of LIBs using commercial carbon-coated LFP (LFP/C), LFP with CNTs grown for 10 (LFP/CNTs-10m) and 30 min(LFP/CNTs-30m) are comparatively investigated. For example, after the formation cycle, we obtained 149.3, 160.1, and 175.0 mAh/g for LFP/C, LFP/CNTs-10m, and LFP/CNTs-30m, respectively. In addition, the improved rate performance and 111.9 mAh/g capacity at 2C rate were achieved from the LFP/CNTs-30m sample compared to the LFP/CNTs-10m and LFP/C samples. We believe that the approach using direct growth of CNTs on LFP particles provides straightforward solution to improve the conductivity in the LFP-based electrode by constructing conduction pathways.

키워드

Lithium ion batteries, Direct growth, Carbon nanotubes, LiFePO4 powder, Rotary chemical vapor deposition

해수 기반 전기화학소자의 안정적인 전극을 위한 내염소층 설계

김수연, Aye Myint Myat Kyaw, 김채언, 장예원, 한유리, Li Oi Lun*

부산대학교 재료공학부

The Korean Society of Surface Science and Engineering, Vol. 57, No. , pp. 325-330.

초록

When seawater is used in electrochemical devices, issues arise such as the adsorption of chloride ions blocking the active sites for Oxygen reduction reactions (ORR) in seawater batteries, and the occurrence of Chlorine evolution reactions (ClER) in seawater electrolysis due to chloride anions (Cl-) competing with OH- for catalytic active sites, potentially slowing down Oxygen evolution reactions (OER). Consequently, the performance of components used in seawater battery and seawater electrolysis may deteriorate. Therefore, conventional alloys are often used by coating or plating methods to minimize corrosion, albeit at the cost of reducing electrical conductivity. This study thus designed a corrosion-resistant layer by doping carbon with Nitrogen (N) and Sulfur (S) to maintain electrical conductivity while preventing corrosion. Optimal N,S doping ratios were developed, with corrosion experiments confirming that N,S (10:90) carbon exhibited the best corrosion resistance performance.

키워드

Seawater; Chloride evolution reaction; Corrosion-resistant layer; N,S doping; Carbon

Hydrogen evolution reaction (HER) properties of pulse laser irradiated platinum catalysts with tailored size

Jeonghun Lee, Hyunsung Jung*

Nano convergence Materials Center, Emerging Materials R&D Division, Korea Institute of Ceramic Engineering and Technology (KICET)

The Korean Society of Surface Science and Engineering, Vol. 57, No. , pp. 331-337.

초록

Platinum has been utilized as an excellent electrocatalyst with low overpotential for the hydrogen evolution reaction (HER) in water splitting, despite of its high cost. In this study, platinum particles were produced using pulsed laser technology as a HER catalyst for water splitting. The colloidal platinum particles were synthesized by nanosecond pulsed laser irradiation (PLI) without reducing agents, not traditional polyol processes including reducing agents. The crystal structure, shape and size of the synthesized platinum particles as a function of pulsed laser irradiation time were investigated by XRD and SEM analysis. Additionally, the electrochemical properties for the HER in water splitting of the irradiation time-dependent platinum electrocatalysts were studied with the analysis of overpotentials in linear sweep voltammetry and Tafel slope.

키워드

Platinum particle; Electrocatalyst; Pulsed laser irradiation; Hydrogen evolution reaction; Water splitting

Zn 이온 배터리용 양극 α-MnO2의 수열 합성 시 전구체 용액의 pH가 에너지 저장 성능에 미치는 영향

전상은a,b,c,*

a경북대학교 첨단소재공학부, b경북대학교 미래 모빌리티용 시스템반도체 혁신인재 교육연구단, c경북대학교 자동차부품 소재연구소

The Korean Society of Surface Science and Engineering, Vol. 57, No. , pp. 338-347.

초록

α-MnO2 as a cathode material for Zn-ion batteries allows insertion and extraction of Zn ions within its tunnel structure during charge and discharge. The morphology and crystal structure of α-MnO2 particles critically determine their electrochemical behavior and energy storage performance. In this study, α-MnO2 was synthesized from precursor solutions under varying pH conditions using a hydrothermal method. The effects of pH values on the morphology, crystal structure, and electrochemical performance were systematically analyzed. The analysis revealed that materials synthesized at higher pH levels exhibited elongated and narrow nanorods with a lower specific surface area. In contrast, those formed at lower pH levels showed shorter, thicker nanorods with a higher specific surface area. This increased surface area at a lower pH enhanced the specific capacitance by providing a greater electrode/electrolyte interfacial area. By contrast, the material synthesized at higher pH conditions demonstrated superior rate capability, attributed to its crystal structure with wider lattice spacings. Wide lattice parameters in the material synthesized at higher pH conditions facilitated easier ion transport than at lower pH levels. Consequently, the study confirms that adjusting the pH of the precursor solution can optimize the electrochemical properties of α-MnO2 for Zn-ion batteries.

키워드

Hydrothermal, α-MnO2, pH control, Specific capacitance, Rate capability

펄스 주파수 및 듀티 사이클이 중간 주파수 마그네트론 스퍼터법으로 증착된 ZrN 코팅막의 미세구조, 잔류응력 및 기계적 특성에 미치는 영향

전성용

목포대학교 첨단재료공학과

The Korean Society of Surface Science and Engineering, Vol. 57, No. , pp. 348-354.

초록

Nanocrystalline zirconium nitride (ZrN) coatings were deposited by mid-frequency direct current sputtering (mfMS) with varying pulsed plasma parameters such as pulse frequency and duty cycle to understand the effect of pulsed plasma on the microstructure, residual stress and mechanical properties. The results show that, with the increasing pulse frequency and decreasing duty cycle, the coating morphology changed from a porous columnar to a dense structure, with finer grains. Mid-frequency magnetron sputtered ZrN coatings with pulse frequency of 30 kHz showed the highest both nanoindentation hardness of 16.3 GPa, and elastic modulus of 214.4 GPa. In addition, Effect of pulse frequency on a residual stress and average crystal grain sizes was also investigated.

키워드

Mid-frequency magnetron sputtering; ZrN; Pulse frequency; Residual stress; Nanoindentation.

  • Vol. 56 No.1
  • Vol. 56 No.2
  • Vol. 56 No.3
  • Vol. 56 No.4
  • Vol. 56 No.5
  • Vol. 56 No.6

Vol. 56 No.1

윤활액이 담지된 나노다공성 표면의 최신 응용분야

한경완, 배기창,이정훈*

부경대학교 금속공학과

The Korean Society of Surface Science and Engineering, Vol. 56, No. , pp. 1-11.

초록

Lubricant-impregnated nanoporous surfaces (LIS), which is created by impregnating water-immiscible oil into nanoporous surface structure, have been explored considering wide range of application fields. Due to the lubricant impregnated in nanoporous structure, the surface shows extreme de-wetting with a high mobility of water droplets, so that various functionalities can be realized. The lubricant layer inhibits the contact of corrosive media to porous structure as well as metal substrate, thus the surface improves the corrosion resistance. The water on the surface freeze without any contact to solid porous structure, showing a low ice adhesion for de-icing an anti-icing. The extremely high mobility of water droplets on lubricant-impregnated porous surfaces also contributes the enhancement of condensation heat transfer as well as water harvesting from fog and moisture. Moreover, the bacteria adhesion on metal surface forming biofilms causing serious hygiene issues can be inhibited on the lubricantimpregnated surfaces. Despite of such superior functionalities, the lubricant-impregnated porous surface has a limitation of lubricant depletion by external flow of fluids. Therefore, extensive efforts to improve the durability of lubricant-impregnated surface are required for practical applications.

키워드

Lubricant-impregnated surface; Functional surface; De-wetting; Hydrophobic; Porous structure.

Challenges for the realization of carbon neutrality and air pollution improvement in major Northeast Asian countries: The importance of transitioning to eco-friendly EV industry and the necessity of developing lightweight materials

Sung-Hyung Leea,b,c*, Hitoshi Yashirob, Song-Zhu Kure-Chud

aGakkō hōjin Kitahara gakuen, Hirakawa 036-0146 Japan, bDepartment of Chemistry and Biological Science, Iwate University, Morioka, Iwate 020-8551 Japan, cKorea Wayokai Institute of Technology, Seoul 152-880 Korea, dMaterials Function and Design, Nagoya Institute of Technology, Nagoya, Aichi 466-855 Japan

The Korean Society of Surface Science and Engineering, Vol. 56, No. , pp. 12-39.

초록

Diseases caused by air pollution and abnormal climate are occurring worldwide due to global warming. Accordingly, the international community has established a strategy to respond to climate change, and major countries have shifted their economic policies to eco-friendly industries.

키워드

GHG; North-East Asia; Carbon neutral; EV; Surface treatment.

Copper phthalocyanine conjugated PANI coated screen printed carbon electrode for electrochemical sensing of 4-NP

Ramalingam Manikandana, Jang-Hee Yoonb*, Seung-Cheol Changa*

aDepartment of Cogno-Mechatronics Engineering, College of Nanoscience and Nanotechnology, Pusan National University, Busan 46241, Republic of Korea, bBusan center, Korea Basic Science Institute, Busan 46742, Republic of Korea

The Korean Society of Surface Science and Engineering, Vol. 56, No. , pp. 40-54.

초록

In this work, we synthesized a novel electrochemical sensing materials based on tetracarboxylic copper phthalocyanine (TcCuPtc) conjugated PANI (TcCuPtc@PANI). The synthesized materials were employed to modify the screen-printed carbon electrode (SPCE) for the selective sensing of 4-nitrophenol. The TcCuPtc was conjugated with conducting polymer of PANI through the electrostatic interaction and π-π electron conjugation, the polymer film of PANI to inhibit the leakage of TcCuPtc from the surface of the electrode. The prepared TcCuPtc@PANI were characterized and confirmed by scanning electron microscopy (SEM) with EDX, ATR-IR, UV-vis absorption spectroscopy, cyclic voltammetry, and differential pulse voltammetry techniques. The prepared TcCuPtc@PANI/SPCE showed an excellent electrocatalytic sensing of 4-NP in the linear concentrations from 3 to 500 nM with a LOD of 0.03 nM and a sensitivity of 8.8294 µA/nM cm-2. However, the prepared TcCuPtc@PANI/SPCE showed selective sensing of 4-NP in the presence of other interfering species. The practical applicability of the TcCuPtc@PANI/SPCE was employed for the sensing of 4-NP in different water samples by standard addition method and showed satisfactory recovery results.

키워드

Tetracarboxylic copper phthalocyanine; PANI; 4-nitrophenol; electrochemical sensing; water samples.

방열소재 응용을 위한 알루미나 분말 표면 위 탄소나노튜브의 직접 성장 거동 고찰

이종환, 한현호, 정구환*

강원대학교 대학원 신소재공학과

The Korean Society of Surface Science and Engineering, Vol. 56, No. , pp. 55-61.

초록

As a preliminary study to produce functional nanocomposites in a heat dissipation device, we performed the direct synthesis of carbon nanotubes (CNTs) on the surface of alumina (Al2O3) powders. A thermal chemical vapor deposition (TCVD) system was used to grow CNTs directly on the Al2O3 surface. In order to investigate the growth behavior of CNTs, we varied both furnace temperature of the TCVD ranging from 700 to 850 °C and concentration of the ferritin-dissolved DI solution from 0.1 to 2.0 mg/mL. From the previous results, the gas composition and duration time for CNT growth were fixed as C2H4 : H2 = 30 : 500 (vol. %) and 10 min, respectively. Based on the analysis results, the optimized growth temperature and ferritin concentration were found to be 825 °C and 0.5 mg/mL, respectively. The obtained results could be adopted to achieve mass production of nanocomposites with heat dissipation functionality.

키워드

Direct growth; Carbon nanotubes; Alumina powder; Heat dissipation; Thermal chemical vapor deposition.

에틸벤젠을 이용한 실리콘 산화물 음극재의 효과적인 카본 코팅 전략

이상렬, 박성수, 채수종*

부경대학교 공업화학전공

The Korean Society of Surface Science and Engineering, Vol. 56, No. , pp. 62-68.

초록

Silicon (Si) is considered as a promising substitute for the conventional graphite due to its high theoretical specific capacity (3579 mAh/g, Li15Si4) and proper working voltage (~0.3V vs Li+/Li). However, the large volume change of Si during (de)lithiation brings about severe degradation of battery performances, rendering it difficult to be applied in the practical battery directly. As a one feasible candidate of industrial Si anode, silicon monoxide (SiOx) demonstrates great electrochemical stability with its specialized strategy, downsized Si nanocrystallites surrounded by Li+ inactive buffer phase (Li2O and Li4SiO4). Nevertheless, SiOx inherently has the initial irreversible capacity and poor electrical conductivity. To overcome those issues, conformal carbon coating has been performed on SiOx utilizing ethylbenzene as the carbon precursor of chemical vapor deposition (CVD). Through various characterizations, it is confirmed that the carbon is homogeneously coated on the surface of SiOx. Accordingly, the carbon-coated SiOx from CVD using ethylbenzene demonstrates 73% of the first cycle efficiency and great cycle life (88.1% capacity retention at 50th cycle). This work provides a promising synthetic route of the uniform and scalable carbon coating on Si anode for high-energy density.

키워드

Lithium-ion Secondary battery; Silicon Oxide; Carbon Coating; Liquid Precursor.

Zn-Al-Mg 합금도금강판의 헤어라인 처리가 표면흑색화 및 열확산도에 미치는 영향

박진성a, 윤덕빈a, 김상헌b, 김태엽c, 김성진a,*

a순천대학교, b(주) MEC, c한국해양대학교 기관시스템공학부

The Korean Society of Surface Science and Engineering, Vol. 56, No. , pp. 69-76.

초록

The effects of hairline treatment on surface blackening and thermal diffusion behaviors of Zn-Al-Mg alloy coated steel sheet were evaluated by the three-dimensional surface profiler and laser-flash technique. The metallographic observation of coating damages by hairline treatments showed that several cracks were initiated and propagated along the interface between primary Zn/eutectic phases. As the hairline processing became more severe, the crack occurrence frequency in eutectic phase of coating layer and the surface roughness increased, which had a proportional relationship with the level of blackening on the coating surface. In addition, the higher interfacial areas of the blackened coating surface, caused by the hairline process, led to an increase in thermal diffusivity and conductivity of the coated steel sheet. On the other hand, when the coating damage by hairline treatment was excessive and the steel substrate was exposed, there was little difference between the thermal diffusivity/conductivity of the untreated sample though the blackening degree was higher than that of untreated sample. This work suggests that the increase in the surface areas of the coating layer without exposure to steel substrate through hairline treatment can be one of the effective technical strategies for the development of Zn-Al-Mg alloy coated steel sheets with higher blackening level and thermal diffusivity.

키워드

hairline; roughness; blackening; thermal diffusivity; conductivity.

Ag/에폭시간 계면 접착력 향상을 위한 전해 실란 처리

공원효a,b, 박광렬c, 류호준c, 배인섭c, 강성일c, 최승회a,*

a한국재료연구원, b부산대학교 재료공학과, c해성DS 주식회사

The Korean Society of Surface Science and Engineering, Vol. 56, No. , pp. 77-83.

초록

The reliability of leadframe-based semiconductor package depends on the adhesion between metal and epoxy molding compound (EMC). In this study, the Ag surface was electrochemically treated in a solution containing silanes in order to improve the adhesion between Ag and epoxy substrate. After electrochemical treatment, the thin silane layer was deposited on the Ag surface, whereby the peel strength between Ag and epoxy substrate was clearly improved. The improvement of peel strength depended on the functional group of silane, implying the chemical linkage between Ag and epoxy.

키워드

Adhesion promoter; silane; electrolytic treatment; leadframe; semiconductor package.

SCALE-ORIGEN-ARP를 이용한 사용후핵연료 내 중성자 및 감마선원 분석

차소희, 박광헌*

경희대학교 원자력공학과

The Korean Society of Surface Science and Engineering, Vol. 56, No. , pp. 84-93.

초록

The spent nuclear fuel is burned during the planned cycle in the plant and then generates elements such as actinide series, fission products, and plutonium with a long half-life. An ‘interim storage’ step is needed to manage the high radioactivity and heat emitted by nuclides until permanent-disposal. In the case of Korea, there is no space to dispose of high-level radioactive waste after use, so there is a need for a period of time using interim storage. Therefore, the intensity of neutrons and gamma-ray must be determined to ensure the integrity of spent nuclear fuel during interim storage. In particular, the most important thing in spent nuclear fuel is burnup evaluation, estimation of the source term of neutrons and gamma-ray is regarded as a reference measurement of the burnup evaluation. In this study, an analysis of spent nuclear fuel was conducted by setting up a virtual fuel burnup case based on CE16x16 fuel to check the total amount and spectrum of neutron, gamma radiation produced. The correlation between BU (burnup), IE (enrichment), and CT (cooling time) will be identified through spent nuclear fuel burnup calculation. In addition, the composition of nuclide inventory, actinide and fission products can be identified.

키워드

Spent nuclear fuel; Neutron source; gamma-ray; Burnup; Enrichment; Cooling time.

Cr-Mo 저합금강의 진공침탄 공정 압력 및 질소 첨가 비율에 따른 경화깊이 균일도 및 표면 특성 효과

권기훈a,b, 박현준a, 안기원a, 이영국b, 문경일a,*

a한국생산기술연구원 친환경열표면처리연구부문, b연세대학교 신소재공학과

The Korean Society of Surface Science and Engineering, Vol. 56, No. , pp. 94-103.

초록

The effects of carburizing pressure and gas ratio on vacuum carburizing properties (uniformity and surface characteristics) have been studied through the analyses of carbon concentration, hardness, surface color, surface roughness and type of carbon bonding. AISI 4115 steel specimens were carburized with various pressures (1, 5, and 10 Torr) at different locations (P1, P2, P3, P4, P5, and P6) inside a furnace held at 950 ℃. Since the carburizing pressure represents the density of the carburizing gas, it plays an important role in improving the carburizing uniformity according to locations in the furnace. As the carburizing pressure increased, the carburizing uniformity according to the sample location was improved, but the surface of the carburized specimen was discolored due to the residual acetylene gas, which does not contribute to the carburizing reaction. Therefore, the carburizing uniformity and surface discoloration have been improved by injecting acetylene gas (carburizing gas) and nitrogen gas (non-reactive gas) in a specific ratio.

키워드

Vacuum carburizing; Pressure; Uniformity; Acetylene; Nitrogen.

리튬이차전지용 고용량 음극을 위한 구리@코발트산화물 코어-쉘 수지상 기반 3차원 다공성 박막

주소영a, 최윤주a,b, 최우성a,*, 신헌철a,*

a부산대학교 재료공학과, b한국기초과학지원원구원 부산센터

The Korean Society of Surface Science and Engineering, Vol. 56, No. , pp. 104-114.

초록

Three dimensional (3D) porous structures consisting of Cu@CoO core-shell-type nano-dendrites were synthesized and tested as the anode materials in lithium secondary batteries. For this purpose, first, the 3D porous films comprising Cu@Co core-shell-type nano-dendrites with various thicknesses were fabricated through the electrochemical co-deposition of Cu and Co. Then the Co shells were selectively anodized to form Co hydroxides, which was finally dehydrated to get Cu@CoO nano-dendrites. The resulting electrodes exhibited very high reversible specific capacity almost 1.4~2.4 times the theoretical capacity of commercial graphite, and excellent capacity retention (~90%@50th cycle) as compared with those of the existing transition metal oxides. From the analysis of the cumulative irreversible capacity and morphology change during charge/discharge cycling, it proved that the excellent capacity retention was attributed to the unique structural feature of our core-shell structure where only the thin CoO shell participates in the lithium storage. In addition, our electrodes showed a superb rate performance (70.5%@10.8 C-rate), most likely due to the open porous structure of 3D films, large surface area thanks to the dendritic structure, and fast electron transport through Cu core network.

키워드

Cobalt oxide; Core-shell; Dendrite; Anode; Lithium battery.

Vol. 56 No.2

국부적 양극산화 기술 동향

강광모, 최수민, 나윤채*

한국기술교육대학교 에너지신소재화학공학부

The Korean Society of Surface Science and Engineering, Vol. 56, No. , pp. 115-124.

초록

Anodization is an electrochemical process that electrochemically converts a metal surface into an oxide layer, resulting in enhanced corrosion resistance, wear resistance, and improved aesthetic appearance. Local anodization, also known as selective anodization, is a modified process that enables specific regions or patterns on the metal surface to undergo anodization instead of the entire surface. Several methods have been attempted to produce oxide layers via localized anodic oxidation, such as using a mask or pre-patterned substrate. However, these methods are often intricate, time-consuming, and costly. Conversely, the direct writing or patterning approach is a more straightforward and efficient way to fabricate the oxide layers. This review paper intends to enhance our comprehension of local anodization and its potential applications in various fields, including the development of nanotechnologies. The application of anodization is promising in surface engineering, where the anodic oxide layer serves as a protective coating for metals or modifies the surface properties of materials. Furthermore, anodic oxidation can create micro- and nano-scale patterns on metal surfaces. Overall, the development of efficient and cost-effective anodic oxidation methods is essential for the advancement of various industries and technologies.

키워드

Local anodization; Mask; Patterned substrate; Direct writing; Oxide layer.

암모니아의 특성에 따른 활용 현황과 부식 손상에 대한 고찰

이승준

군산대학교 ONSE대학 기관공학전공

The Korean Society of Surface Science and Engineering, Vol. 56, No. , pp. 125-136.

초록

Recently, ammonia has emerged as an alternative energy source that can reduce carbon emissions in various industries. Ammonia is used as a fuel in internal combustion engines because it contains no carbon in its components and does not emit any carbon when burned. It is also used in various fields such as fertilizer production, refrigeration, cleaning and disinfection, and drug manufacturing due to its unique characteristics, such as high volatility and easy solubility in water. However, it is highly corrosive to metals and is a toxic gas that can pose a risk to human health, so caution must be exercised when using it. In particular, stress corrosion cracking may occur in containers or manufacturing facilities made of carbon-manganese steel or nickel steel, so special care is needed. As ammonia has emerged as an alternative fuel for reducing carbon emissions, there is a need for a rapid response. Therefore, based on a deep understanding of the causes and mechanisms of ammonia corrosion, it is important to develop new corrosion inhibitors, improve corrosion monitoring and prediction systems, and study corrosion prevention design.

키워드

Ammonia; Corrosion; Toxic; Carbon free; Stress corrosion cracking.

양극산화 조건에 따른 이산화티타늄 나노튜브의 광촉매 및 광전기화학적 특성

김연진, 정린, 이재원, 유정은*, 이기영*

인하대학교 화학·화학공학융합학과

The Korean Society of Surface Science and Engineering, Vol. 56, No. , pp. 137-146.

초록

Nanosized TiO2 has been widely investigated in photoelectrochemical or photocatalytic applications due to their intrinsic properties such as suitable band position, high photocorrosion resistance, and surface area. In this study, to achieve the high efficiency in photoelectrochemical and photocatalytic performance, TiO2 nanotubular structures were formed by anodization at various temperatures and times. The morphological and crystal structure of the anodized TiO2 nanotubes (NTs) were characterized by scanning electron microscope (SEM) and X-ray diffraction (XRD). The photoelectrochemical (PEC) properties and incident photon-to-current conversion efficiency (IPCE) of the TiO2 NTs were studied with different lengths and morphologies. From the detailed investigations, the optimum thickness of TiO2 nanotubes was 3 ㎛. Moreover, we found that the optimum photocatalytic pollutant removal efficiency of TiO2 nanotubes for photodegradation of Rhodamine B (RhB) under simulated solar light was 5.34 μm of tube length.

키워드

Anodization; TiO2 nanotubes; Photoelectrochemical water splitting; Incident photon-to-current efficiency; Photodegradation .

ZnO/Ti/ZnO 박막의 결정성 및 전기광학적 완성도 개선 연구

장진규a,†, 김유성b,†, 이연학a, 최진영a,b, 이인식b, 김대욱b, 차병철b, 공영민a, 김대일a,*

a울산대학교 첨단소재공학부, b한국생산기술연구원 울산본부 첨단정형공정그룹

The Korean Society of Surface Science and Engineering, Vol. 56, No. , pp. 147-151.

초록

Transparent ZnO (100 nm thick) and ZnO/Ti/ZnO (ZTZ) films were prepared with radio frequency (RF) and direct current (DC) magnetron sputtering on the glass substrate at room temperature. During the ZTZ film deposition, the thickness of the Ti interlayer was varied, such as 6, 9, 12, and 15 nm, while the thickness of ZnO films was kept at 50 nm to investigate the effect of the Ti interlayer on the crystallization and opto-electrical performance of the films. From the XRD pattern, it is concluded that the 9 nm thick Ti interlayer showed some characteristic peaks of Ti (200) and (220), and the grain size of the ZnO (002) enlarged from 13.32 to 15.28 nm as Ti interlayer thickness increased. In an opto-electrical performance observation, ZnO single-layer films show a figure of merit of 1.4×10-11 Ω-1, while ZTZ films with a 9 nm-thick Ti interlayer show a higher figure of merit of 2.0×10-5 Ω-1.

키워드

ZnO; Ti; XRD; AFM; Figure of merit.

야간 시인성 확보를 위한 희토류 첨가 고내구성 장잔광 축광도료 제조에 관한 연구

우은석a, 노윤석a, 이진호a, 최용욱b*, 김종기a*

a이에이바이오스, b한국생산기술연구원 에너지소재부품연구그룹

The Korean Society of Surface Science and Engineering, Vol. 56, No. , pp. 152-159.

초록

The night visibility of pavement is being considered as a global issue in the field of traffic safety. Although the spreading glass beads on the lane paints has been mainly used to secure night-visibility by utilizing the effect of retroreflection, obvious shortcoming of this method is that retroflection does not occur in the range where the headlights do not reach the glass beads. The use of functional paints including phosphorescent constituents could be a solution for overcoming fore-mentioned problem. SrAl2O4 based chemicals have not only good phosphorescent property, but also are chemically stable compared to existing ZnS based materials. However, this chemicals also need the improvement due to slightly reduced luminous effect in time. Herein, we developed novel paints showing enhanced phosphorescent properties by putting rare earth elements such as Eu, Dy and Y into SrAl2O4. These prepared phosphorescent pigments have displayed improved properties in terms of durability and long afterglow. For instance, the property of afterglow has been persisted after 5 hours with luminace of 20.6 mcd/m2.

키워드

Phosphorescent paint; After-glow; Night visibility; Eco-friendly paint.

스트레처블 배선용 저저항 알루미늄-몰리브데늄 합금에 대한 연구

이민준a, 배진원b, 박수연b, 최재익b, 김건호c, 서종현a,c,*

a한국항공대학교 반도체학과, b한국항공대학교 신소재공학과, c주식회사 큐프럼 머티리얼즈

The Korean Society of Surface Science and Engineering, Vol. 56, No. , pp. 160-168.

초록

Recently, investigation on metallization is a key for a stretchable display. Amorphous metal such as Ni and Zr based amorphous metal compounds are introduced for a suitable material with superelastic property under certain stress condition. However, Ni and Zr based amorphous metals have too high resistivity for a display device’s interconnectors. In addition, these metals are not suitable for display process chemicals. Therefore, we choose an aluminum based amprhous metal Al-Mo as a interconnector of stretchable display. In this paper, Amorphous Forming Composition Range (AFCR) for Al-Mo alloys are calculated by Midema's model, which is between 0.1 and 0.25 molybdenum, as confirmed by X-ray diffraction (XRD). The elongation tests revealed that amorphous Al-20Mo alloy thin films exhibit superior stretchability compared to pure Al thin films, with significantly less increase in resistivity at a 10% strain. This excellent resistance to hillock formation in the Al20Mo alloy is attributed to the recessed diffusion of aluminum atoms in the amorphous phase, rather than in the crystalline phase, as well as stress distribution and relaxation in the aluminum alloy. Furthermore, according to the AES depth profile analysis, the amorphous Al-Mo alloys are completely compatible with existing etching processes. The alloys exhibit fast etch rates, with a reasonable oxide layer thickness of 10 nm, and there is no diffusion of oxides in the matrix. This compatibility with existing etching processes is an important advantage for the industrial production of stretchable displays.

키워드

Aluminum-molybdenum alloy; Miedema's model; Stretchable display: Hillock; metal interconnector.

Vol. 56 No.3

Dielectric Breakdown Behavior of Anodic Oxide Films Formed on Pure Aluminum in Sulfuric Acid and Oxalic Acid Electrolytes

Hien Van Phama,b, Duyoung Kwona,c, Juseok Kima,c, Sungmo Moona,b,*

aNano-Surface Materials Division, Korea Institute of Materials Science, 797 Changwon-daero, Seongsan-gu, Changwon, Gyeongnam 51508, Republic of Korea bAdvanced Materials Engineering, Korea University of Science and Technology, 217 Gajeong-ro, Yuseong-gu, Daejeon, 34113, Republic of Korea cDepartment of Materials Science and Engineering, Pusan National University, 2 Busandaehak-ro 63beon-gil, Geumjeong-gu, Busan 46241, Republic of Korea

The Korean Society of Surface Science and Engineering, Vol. 56, No. , pp. 169-179.

초록

This work studies dielectric breakdown behavior of AAO (anodic aluminum oxide) films formed on pure aluminum at a constant current density in 5 ~ 20 vol.% sulfuric acid (SA) and 2 ~ 8 wt.% oxalic acid (OA) solutions. It was observed that dielectric breakdown voltage of AAO film with the same thickness increased with increasing concentration of both SA and OA solutions up to 15 vol.% and 6 wt.%, respectively, above which it decreased slightly. The dielectric breakdown resistance of the OA films appeared to be superior to that of SA films. After dielectric breakdown test, cracks and a hole were observed. The crack length increased with increasing SA film thickness but it did not increase with increasing OA film thickness. To explain the reason why shorter cracks formed on the OA films than the SA films after dielectric breakdown test, the generation of tensile stresses at the oxide/ metal interface was discussed in relation to porosity of AAO films obtained from cross-sectional morphologies.

키워드

Anodic oxide film; Dielectric breakdown; Sulfuric acid; Oxalic acid; Aluminum.

Optimal pressure and temperature for Cu–Cu direct bonding in three-dimensional packaging of stacked integrated circuits

Seunghyun Yum, June Won Hyun*

Department of Physics, Dankook University, Cheonan 31116, Republic of Korea

The Korean Society of Surface Science and Engineering, Vol. 56, No. , pp. 180-184.

초록

Scholars have proposed wafer-level bonding and three-dimensional (3D) stacked integrated circuit (IC) and have investigated Cu–Cu bonding to overcome the limitation of Moore’s law. However, information about quantitative Cu–Cu direct-bonding conditions, such as temperature, pressure, and interfacial adhesion energy, is scant. This study determines the optimal temperature and pressure for Cu–Cu bonding by varying the bonding temperature to 100, 150, 200, 250, and 350 ℃ and pressure to 2,303 and 3,087 N/cm2. Various conditions and methods for surface treatment were performed to prevent oxidation of the surface of the sample and remove organic compounds in Cu direct bonding as variables of temperature and pressure. EDX experiments were conducted to confirm chemical information on the bonding characteristics between the substrate and Cu to confirm the bonding mechanism between the substrate and Cu. In addition, after the combination with the change of temperature and pressure variables, UTM measurement was performed to investigate the bond force between the substrate and Cu, and it was confirmed that the bond force increased proportionally as the temperature and pressure increased.

키워드

Cu-to-Cu bonding; 3D stacking; 3D package; C2C; C2W.

제품 형태에 따른 도금층 및 부식 특성의 연구

김하늘a, 홍민규b, 장병록a,*

a인하대학교 제조혁신전문대학원 첨단소재공정공학과, b주식회사 하이피텍

The Korean Society of Surface Science and Engineering, Vol. 56, No. , pp. 185-191.

초록

The lifetime and corrosion resistance of the coating depends on its thickness and composition. We checked how the plating progressed according to the shape of the product to be plated. There was no significant difference in the composition or thickness of the plating according to the shape of the separately plated products. Samples of different shapes collected from products with complex shapes showed no significant difference in composition depending on the shape, but significant differences in thickness. This difference is due to the difference in applied current density depending on the shape of the product.

키워드

Plating; Etching; Corrosion; Zn-Ni Alloy; Microstructure.

전해구리박의 표면 조건과 어닐링 과정을 통한 그래핀 성장 최적화

이우진, 고하은, 구태림, 이재성, 이준우, 홍순기, 김상호*

한국기술교육대학교 에너지신소재화학공학부

The Korean Society of Surface Science and Engineering, Vol. 56, No. , pp. 192-200.

초록

Graphene, a two-dimensional material, has shown great potential in a variety of applications including microelectronics, optoelectronics, and graphene-based batteries due to its excellent electronic conductivity. However, the production of large-area, high-quality graphene remains a challenge. In this study, we investigated graphene growth on electrolytic copper foil using thermochemical vapor deposition (TCVD) to achieve a similar level of quality to the cold-rolled copper substrate at a lower cost. The combined effects of pre-annealing time, graphenized temperature, and partial pressure of hydrogen on graphene coverage and domain size were analyzed and correlated with the roughness and crystallographic texture of the copper substrate. Our results show that controlling the crystallographic texture of copper substrates through annealing is an effective way to improve graphene growth properties, which will potentially lead to more efficient and cost-effective graphene production. At a hydrogen partial pressure that is disadvantageous in graphene growth, electrolytic copper had an average size of 8.039 ㎛2, whereas rolled copper had a size of 19.092 ㎛2, which was a large difference of 42.1% compared to rolled copper. However, at the proper hydrogen partial pressure, electrolytic copper had an average size of 30.279 ㎛2 and rolled copper had a size of 32.378 ㎛2, showing a much smaller difference of 93.5% than before. This observation suggests this potentially leads the way for more efficient and cost-effective graphene production.

키워드

TCVD; Copper; Graphene.

증착 온도가 라디오파 마그네트론 스퍼터링으로 성장한 SnO2:Eu3+ 박막의 특성에 미치는 영향

조신호*

신라대학교 배터리학과

The Korean Society of Surface Science and Engineering, Vol. 56, No. , pp. 201-207.

초록

Eu3+-doped SnO2 (SnO2:Eu3+) phosphor thin films were grown on quartz substrates by radio-frequency magnetron sputtering. The deposition temperature was varied from 100 to 400 ℃. The X-ray diffraction patterns showed that all the thin films had two mixed phases of SnO2 and Eu2Sn2O7. The 880 nmthick SnO2:Eu3+ thin film grown at 100 ℃ exhibited numerous pebble-shaped particles. The excitation spectra of SnO2:Eu3+ thin films consisted of a strong and broad peak at 312 nm in the vicinity from 250 to 350 nm owing to the O2-–Eu3+ charge transfer band, irrespective of deposition temperature. Upon 312 nm excitation, the SnO2:Eu3+ thin films showed a main emission peak at 592 nm arising from the 5D07F1 transition and a weak 615 nm red band originating from the 5D07F2 transition of Eu3+. As the deposition temperature increased, the emission intensities of two bands increased rapidly, approached a maximum at 100 ℃, and then decreased slowly at 400 ℃. The thin film deposited at 200 ℃ exhibited a band gap energy of 3.81 eV and an average transmittance of 73.7% in the wavelength range of 500 – 1100 nm. These results indicate that the luminescent intensity of SnO2:Eu3+ thin films can be controlled by changing the deposition temperature.

키워드

Thin Film; Transmittance; Photoluminescence.

가시광선 활용을 위한 Ag 도핑 흑색 ZnO 나노 광촉매 합성

김의준a, 김혜민b, 이승효a,*

a한국해양대학교 해양신소재융합공학과, b신슈대학 물질화학과

The Korean Society of Surface Science and Engineering, Vol. 56, No. , pp. 208-218.

초록

Photocatalysts are advanced materials which accelerate the photoreaction by providing ordinary reactions with other pathways. The catalysts have various advantages, such as low-cost, low operating temperature and pressure, and long-term use. They are applied to environmental and energy field, including the air and water purification, water splitting for hydrogen production, sterilization and selfcleaning surfaces. However, commercial photocatalysts only absorb ultraviolet light between 100 and 400 nm of wavelength which comprises only 5% in sunlight due to the wide band gap. In addition, rapid recombination of electron-hole pairs reduces the photocatalytic performance. Recently, studies on blackening photocatalysts by laser, thermal, and plasma treatments have been conducted to enhance the absorption of visible light and photocatalytic activity. The disordered structures could yield mid-gap states and vacancies could cause charge carrier trapping. Herein, liquid phase plasma (LPP) is adopted to synthesize Ag-doped black ZnO for the utilization of visible-light. The physical and chemical characteristics of the synthesized photocatalysts are analyzed by SEM/EDS, XRD, XPS and the optical properties of them are investigated using UV/Vis DRS and PL analyses. Lastly, the photocatalytic activity was evaluated using methylene blue as a pollutant.

키워드

Liquid phase plasma; Photocatalysts; Ag-doped black ZnO; Visible light; Methylene blue.

Vol. 56 No.4

Vertically aligned cupric oxide nanorods for nitrogen monoxide gas detection

Jong-Hyun Park, Hyojin Kim

Department of Materials Science and Engineering, Chungnam National University

The Korean Society of Surface Science and Engineering, Vol. 56, No. , pp. 219-226.

초록

Utilizing low-dimensional structures of oxide semiconductors is a promising approach to fabricate relevant gas sensors by means of potential enhancement in surface-to-volume ratios of their sensing materials. In this work, vertically aligned cupric oxide (CuO) nanorods are successfully synthesized on a transparent glass substrate via seed-mediated hydrothermal synthesis method with the use of a CuO nanoparticle seed layer, which is formed by thermally oxidizing a sputtered Cu metal film. Structural and optical characterization by x-ray diffraction (XRD), scanning electron microscopy (SEM), and Raman spectroscopy reveals the successful preparation of the CuO nanorods array of the single monoclinic tenorite crystalline phase. From gas sensing measurements for the nitrogen monoxide (NO) gas, the vertically aligned CuO nanorod array is observed to have a highly responsive sensitivity to NO gas at relatively low concentrations and operating temperatures, especially showing a high maximum sensitivity to NO at 200 ℃ and a low NO detection limit of 2 ppm in dry air. These results along with a facile fabrication process demonstrate that the CuO nanorods synthesized on a transparent glass substrate are very promising for low-cost and high-performance NO gas sensors.

키워드

Cupric oxide; Oxide semiconductor; Nanorod; NO gas sensor; Hydrothermal synthesis.

Dielectric relaxation properties in the lead scandium niobate

Yeon Jung Kim

College of Engineering, Dankook University

The Korean Society of Surface Science and Engineering, Vol. 56, No. , pp. 227-232.

초록

In this study, complex admittance as a function of temperature and frequency was measured to analyze the important relaxation properties of lead scandium niobate, which is physically important, although it is not an environmentally friendly electrical and electronic material, including lead. Lead scandium niobate was synthesized by heat treating the solid oxide, and the conductance, susceptance and capacitance were measured as a function of temperature and frequency from the temperature dependence of the RLC circuit. The relaxation characteristics of lead scandium niobate were found to be affected by contributions such as grain size, grain boundary characteristics, space charge, and dipole arrangement. As the temperature rises, the maximum admittance and susceptance increase in one direction, but the resonance frequency decreases below the transition temperature but increases after the phase transition.

키워드

PSN ; Dielectric relaxation ; Cole-Cole diagram ; Thermal fluctuation.

다중층 나노구조체를 통한 열차단 특성 제어

노태호a, 심이레b*

a명지대학교 방목기초교육대학, b한라대학교 기계자동차로봇공학부

The Korean Society of Surface Science and Engineering, Vol. 56, No. , pp. 233-242.

초록

In recent years, energy-management studies in buildings have proven useful for energy savings. Typically, during heating and cooling, the energy from a given building is lost through its windows. Generally, to block the entry of ultraviolet (UV) and infrared (IR) rays, thin films of deposited metals or metal oxides are used, and the blocking of UV and IR rays by these thin films depends on the materials deposited on them. Therefore, by controlling the thicknesses and densities of the thin films, improving the transmittance of visible light and the blocking of heat rays such as UV and IR may be possible. Such improvements can be realized not only by changing the two-dimensional thin films but also by altering the zero-dimensional (0-D) nanostructures deposited on the films. In this study, 0-D nanoparticles were synthesized using a sol –gel procedure. The synthesized nanoparticles were deposited as deep coatings on polymer and glass substrates. Through spectral analysis in the UV–visible (vis) region, thin-film layers of deposited zinc oxide nanoparticles blocked >95 % of UV rays. For high transmittance in the visible-light region and low transmittance in the IR and UV regions, hybrid multiple layers of silica nanoparticles, zinc oxide particles, and fluorine-doped tin oxide nanoparticles were formed on glass and polymer substrates. Spectrophotometry in the UV–vis–near-IR regions revealed that the substrates prevented heat loss well. The glass and polymer substrates achieved transmittance values of 80 % in the visible-light region, 50 % to 60 % in the IR region, and 90 % in the UV region.

키워드

Suppressed thermal conductivity; Nanoparticles; Zinc oxide; Fluorine-doped tin oxide; Deep coating.

요소 산화반응을 위한 NiFe2O4 나노파티클 촉매 합성 및 특성 분석

윤기용a, 이경복a,b, 김도형a,b, 노희윤a,b, 최승목a, 이지훈a, 정재훈a, 양주찬a,*

a한국재료연구원 그린수소재료연구실, b부산대학교 재료공학부

The Korean Society of Surface Science and Engineering, Vol. 56, No. , pp. 243-249.

초록

Urea oxidation reaction (UOR) via electrochemical oxidation process can replace oxygen evolution reaction (OER) for green hydrogen production since UOR has lower thermodynamic potential (0.37 VRHE) than that of OER (1.23 VRHE). However, in the case of UOR, 6 electrons are required for the entire UOR. For this reason, the reaction rate is slower than OER, which requires 4 electrons. In addition, it is an important challenge to develop catalysts in which both oxidation reactions (UOR and OER) are active since the active sites of OER and UOR are opposite to each other. We prove that among the NiFe2O4 nanoparticles synthesized by the hydrothermal method at various synthesis temperatures, NiFe2O4 nanoparticle with properly controlled particle size and crystallinity can actively operate OER and UOR at the same time.

키워드

Nanoparticle; Hydrothermal method; Oxygen evolution reaction; Urea oxidation; Hydrogen production.

고규소 알루미늄 합금의 표면에 PEO 공정에 의하여 형성된 산화물 층의 부식 거동

박덕용

한밭대학교 신소재공학과

The Korean Society of Surface Science and Engineering, Vol. 56, No. , pp. 250-258.

초록

Ceramic oxide layer was formed on the surface of high silicon aluminum alloy by using PEO (plasma electrolytic oxidation) process. The microstructure of the oxide layer was analyzed using scanning electron microscopy (SEM) and x-ray diffraction patterns (XRD). The high silicon aluminum alloy prior to PEO process consists of Al, Si and Al2Cu phases in XRD analysis, whereas Al2Cu phase selectively disappeared after PEO treatment. Considerable decrease of relative intensity in most of peaks in XRD results of the high silicon aluminum alloy treated by PEO process was observed. It may be attributed to the formation of amorphous phases after PEO treatment. The corrosion behavior of the high silicon aluminum alloy treated by PEO process was investigated using electrochemical impedance spectroscopy (EIS) and other electrochemical techniques (i.e., open circuit potential and polarization curve). Electroanalytical studies indicated that the high silicon aluminum alloy treated by PEO process shows greater corrosion resistance than that untreated by PEO process.

키워드

Electrochemical process; plasma electrolytic oxidation; corrosion behavior; high silicon aluminum alloy; ceramic oxide layer.

고상법을 활용한 리튬이차전지 폐양극활물질 재활용 기술 연구

강동훈, 임주원, 고민성*

부경대학교 금속공학전공

The Korean Society of Surface Science and Engineering, Vol. 56, No. , pp. 259-264.

초록

As the demand for lithium-ion batteries, a key power source in electric vehicles and energy storage systems, continues to increase for achieving global carbon neutrality, there is a growing concern about the environmental impact of disposing of spent batteries. Extensive research is underway to develop efficient recycling methods. While hydrometallurgy and pyrometallurgy methods are commonly used to recover valuable metals from spent cathode materials, they have drawbacks including hazardous waste and complex processes. Hence, alternative recycling methods that are environmentally friendly are being explored. However, recycling spent cathode materials still remains complex and energy-intensive. This study focuses on a novel approach called solid-state synthesis, which aims at regenerating the performance of spent cathode materials. The method offers a simpler process and reduces energy consumption. Optimal heat treatment conditions were identified based on experimental results, contributing to the development of sustainable recycling technologies for lithium-ion batteries.

키워드

Lithium-ion battery; recycling; cathode materials; solid-state synthesis.

양극산화로 제조된 다공성 나노구조 철 산화막의 열처리 조건에 따른 광전기화학적 성질

정동헌, 유정은*, 이기영*

인하대학교 화학·화학공학융합학과

The Korean Society of Surface Science and Engineering, Vol. 56, No. , pp. 265-272.

초록

Photoelectrochemical (PEC) water splitting is one of the promising methods for hydrogen production by solar energy. Iron oxide has been effectively investigated as a photoelectrode material for PEC water splitting due to its intrinsic property such as short minority carrier diffusion length. However, iron oxide has a low PEC efficiency owing to a high recombination rate between photoexcited electrons and holes. In this study, we synthesized nanoporous structured iron oxide by anodization to overcome the drawbacks and to increase surface area. The anodized iron oxide was annealed in Ar atmosphere with different purging times. In conclusion, the highest current density of 0.032 mA/cm2 at 1.23 V vs. RHE was obtained with 60 s of pursing for iron oxide(Fe-60), which was 3 times higher in photocurrent density compared to iron oxide annealed with 600 s of pursing(Fe-600). The resistances and donor densities were also evaluated for all the anodized iron oxide by electrochemical impedance spectra and Mott-Schottky plot analysis.

키워드

Anodization: Iron oxide: Photoelectrochemical property: Heat treatment: Incident Photon-to-Electron Conversion Efficiency.

다양한 코팅 처리에 의한 PEEK 추간체유합보형재의 생체 활성 표면에 관한 연구

노수빈a,b,†, 박수지b,†, 이문환b,*

a전북대학교 헬스케어공학과, b오송첨단의료산업진흥재단 첨단의료기기개발지원센터

The Korean Society of Surface Science and Engineering, Vol. 56, No. , pp. 273-282.

초록

In this study, the surface of Polyetheretherketone (PEEK) disks was modified to have a hydrophilic surface by applying a coating of Polyethylene glycol (PEG), Hyaluronic acid(HA), and Poly-Dopamine(PDA). The investigation aimed to examine whether the coated surfaces showed enhanced bioactivity for orthopedic applications compared to the pure PEEK. The microstructure, surface characteristics, and wettability of PEEK coated with PEG, HA, and PDA were analyzed using scanning electron microscopy(SEM), FT-IR spectrophotometer, Roughness Measurement System, Micro-Vickers, and Contact angle measurement. The mechanical properties were analyzed using a tensile testing machine, while the MTT assay for cell activity was analyzed using a microplate reader to measure optical density. According to the SEM and FT-IR results, the composition and crystal structure of PEG, HA and PDA coated surface were verified. Also, roughness, hardness, and contact angle were all improved in the coating group compared to the pure PEEK. We checked the HepG2 cell proliferation by using MTT assay on 7th days. In MTT assay results, HepG2 cell proliferation was increased with time, at 7 days, cell viability on discs coated with PDA was significantly higher than pure PEEK, PEG, HA coated group. PDA coated PEEK exhibited the highest surface roughness, hardness, contact angle, and cell activity. The mechanical properties were not affected by the presence of the coating.

키워드

PEEK; Surface modification; Bioactivity; PEG (Polyethylene glycol); HA (Hyaluronic acid); Poly-Dopamine (PDA).

G-SAVE 공법 탑재 차량의 예비위험성평가

정의필a,*, 박현철a, 박영수a, 안병철a, 한덕수b, 전현준b

a울산대학교 산업대학원, b(주)켐프

The Korean Society of Surface Science and Engineering, Vol. 56, No. , pp. 283-287.

초록

The structures for road safety are guard rails that protect the cars and passengers. If an accident occurs on the roads after a long period of installation, it may escalate into a major disaster. In order to repair many guard rails, the existing repair method of replacing them with new ones requires enormous financial resources. To solve this problem, the G-SAVE method was developed to repair the guard rail without replacing them. This method removes the rust on the surface of the guard rail and then performs ambient-dip galvanizing coating on it without replacing the new ones. No studies or reports have yet been made on the risk assessment of harmful substances, vehicles for these entire processes. Therefore, this paper focuses on risk assessment using the PHA(Preliminary Hazard Analysis) technique and conducts risk assessment for concept design stage of the coating vehicles.

키워드

PHA; G-SAVE; Risk Assessment; Cleaning Vehicle; Coating Vehicle.

Vol. 56 No.5

전기 아연도금용 유색 크로메이트에 대한 건조 온도의 영향

전수병a,b, 최지원b, 손병기b, 손인준a,*

a경북대학교 금속신소재공학과, b(주)일성도금 기업부설연구소

The Korean Society of Surface Science and Engineering, Vol. 56, No. , pp. 289-298.

초록

In this study, the effect of drying temperature on characteristics of the trivalent chromate film on electroplated zinc was investigated. An zinc-electroplated iron specimen with a thickness of 5 μm was used for chromate treatment. Chromate treatment was conducted in a solution diluted 10 times from a mixture of Cr(NO3)3∙9H20 360 g/L, Co(NO3)2∙6H2O 60 g/L, Na2SO4 60 g/L, NH4F∙HF 25 g/L, and NaOH 20 g/L. The zinc electroplated specimen was treated using the chromate solution with pH 2.0 at 25 ℃ for 60 s. Subsequently, chromate-treated samples were dried in an electric furnace for 2h with temperature varied from 25 to 125 ℃. The corrosion rate increased with the increase in the drying temperature, and the surface morphology of the chromate-treated film was observed using FE-SEM. When the drying temperature changed, the color of the chromate film changed from green to yellow, and the thickness of the film changed from 362 to 241 nm, respectively. Additionally, corrosion resistance was evaluated via a salt spray test.

키워드

Zinc Electroplating; Chromate; Corrosion Resistance; Drying Tempareture; Film Color; Film Thickness

인이 도핑된 NiCo2O4 전극 제조 공정의 간소화를 통한 전극 특성의 변화

이석희a,*, 차현진a, 박정환a, 손영국a, 황동현b,*

a부산대학교 재료공학과, b신라대학교 배터리학과

The Korean Society of Surface Science and Engineering, Vol. 56, No. , pp. 299-308.

초록

In this study, phosphorus (P)-doped nickel cobaltite (P-NiCo2O4) and nickel-cobalt layered double hydroxide (P-NiCo-LDH) were synthesized on nickel (Ni) foam as a conductive support using hydrothermal synthesis. The thermal properties, crystal structure, microscopic surface morphology, chemical distribution, electronic state of the constituent elements on the sample surface, and electrical properties of the synthesized P-NiCo2O4 and P-NiCo-LDH samples were analyzed using thermogravimetric analysis-differential scanning calorimetry (TGA-DSC), X-ray diffraction (XRD), field-emission scanning electron microscopy (FE-SEM), energy dispersive X-ray spectroscopy (EDS), X-ray photoelectron spectroscopy (XPS), cyclic voltammetry (CV), galvanostatic charge-discharge (GCD), and electrochemical impedance spectroscopy (EIS). The P-NiCo2O4 electrode exhibited a specific capacitance of 1,129 Fg-1 at a current density of 1 Ag-1, while the P-NiCo-LDH electrode displayed a specific capacitance of 1,012 Fg-1 at a current density of 1 Ag-1. When assessing capacity changes for 3,000 cycles, the P-NiCo2O4 electrode exhibited a capacity retention rate of 54%, whereas the P-NiCo-LDH electrode showed a capacity retention rate of 57%.

키워드

NiCo2O4, Hydrothermal Method, Supercapacitor, Phosphorus Doping, Electrode, Energy Storage Device

멜트블로운 부직포의 형태와 물리적 특성을 제어하는 공정기술에 관한 연구

정재석a*, 김미경b, 고정우c,d

a한국섬유개발연구원, bDYETEC연구원, c㈜디에이치텍 중앙연구소, d한국전자통신연구원 기업성장지원전략실

The Korean Society of Surface Science and Engineering, Vol. 56, No. , pp. 309-319.

초록

Non-woven fabric is a textile product made by spinning thermoplastic polymers without manufacturing processes such as stretching, doubling, twisting, weaving, and knitting to form a sheet-shaped web in which fibers are tangled with each other, and then combining them by mechanical and physical methods. In addition, the non-woven fabric manufacturing process has various raw material choices, high productivity, so it is a textile manufacturing technology that can have various uses and increase added value. This study was conducted to control the shape and physical properties of products by improving the manufacturing method of melt-blown non-woven fabrics using process technology that easily changes the shape of non-woven fabrics and improves mechanical properties. In particular, it is considered that a non-woven fabric with a thin material shape and improved mechanical properties will be easily applied to a continuous secondary battery manufacturing industry such as roll to roll operation.

키워드

non-woven, melt-blown, thermoplastic polymer, calendering, control, shape, physical property

니켈 폼(Ni foam)에 수열 합성법으로 제조한 수산화니켈(Ni(OH)2) 전극의 구조적 및 전기적 특성

차현진a, 이석희a, 박정환a, 손영국a, 황동현b,*

a부산대학교 재료공학과, b신라대학교 배터리학과

The Korean Society of Surface Science and Engineering, Vol. 56, No. , pp. 320-327.

초록

In this study, the nickel hydroxide (Ni(OH)2) electrode for supercapacitor was prepared via hydrothermal method. Based on the nickel (Ni) foam, the electrode does not require any additional binder material or post-processing. Nickel nitrate (Ni(NO3)2) and hexamethylenetetramine (C6H12N4) were used for synthesis, and the synthesis condition was 12 hours at 80 °C. X-ray diffraction (XRD) and field-emission scanning electron microscopy (FE-SEM) were used to analyze the structural characteristics of the electrode, and it shown that the nickel hydroxide was successfully prepared after only the one-step hydrothermal synthesis. The electrochemical properties were analyzed through the half-cell test. The prepared electrode shown a pair of oxidation/reduction peaks, indicating that the driving method included the redox reaction on the electrode surface. After the charge/discharge test, the specific capacitance was calculated as the value of 438 F/g at 3 A/g.

키워드

Hydrothermal synthesis, Nickel hydroxide, Nickel foam, Supercapacitor

플라즈마 질화처리한 사출금형소재의 비정질 탄소계 박막 증착에 따른 기계적 특성 향상 효과

김혜민a, 김대욱b*

a신슈대학 물질화학과, b한국생산기술연구원

The Korean Society of Surface Science and Engineering, Vol. 56, No. , pp. 328-334.

초록

The carbon-based films have various properties, which have been widely applied in industrial application. However, it has critical drawback for poor adhesion between films and metal substrate. In the present work, we have deposited carbon-based films on injection mold steel by plasma assisted chemical vapor deposition (PACVD). In order to improve adhesion, prior to film deposition, the substrate was nitriding-treated using PACVD. And its effect on the adhesion was investigated. Due to the pre-nitriding, the amorphous carbon nitride (a-CN:H) films presented 10 times higher adhesion (34.9 N) than that of un-nitirided. In addition, a friction coefficient was decreased from 0.29 to 0.15 for the amorphous carbon (a-C:H) due to improved adhesion. The obtained results demonstrated that pre-nitriding considerably improved the adhesion, and the relationship among adhesion, hardness, and surface roughness was discussed in detail.

키워드

Plasma assistant chemical vapor deposition, Adhesion, Amorphous carbon nitride

Ti–Al–Si–Cu–N 후막의 Cu 조성에 따른 기계적 특성과 미세구조 변화에 관한 연구

이연학a†, 허성보b†, 박인욱a, 김대일a*

a울산대학교 첨단소재공학부, b한국생산기술연구원 동남본부 첨단하이브리드생산기술센터

The Korean Society of Surface Science and Engineering, Vol. 56, No. , pp. 335-340.

초록

Quinary component of 3μm thick Ti-Al-Si-Cu-N films were deposited onto WC-Co and Si wafer substrates by using an arc ion plating(AIP) system. In this study, the influence of copper(Cu) contents on the mechanical properties and microstructure of the films were investigated. The hardness of the films with 3.1 at.% Cu addition exhibited the hardness value of above 42 GPa due to the microstructural change as well as the solid-solution hardening. The instrumental analyses revealed that the deposited film with Cu content of 3.1 at.% was a nano-composites with nano-sized crystallites (5–7 nm in dia.) and a thin layer of amorphous Si3N4 phase.

키워드

Ti–Al–Si–Cu–N; Nano-composite; Nano-hardness; Microstructure; Arc ion plating.

Vol. 56 No.6

분말소재의 표면처리를 위한 회전형 CVD 공정

이종환a, 정구환a,b,*

a강원대학교 대학원 고기능 소재 및 소자 협동과정, b강원대학교 배터리융합공학과

The Korean Society of Surface Science and Engineering, Vol. 56, No. , pp. 341-352.

초록

This paper reviews the potentials of a rotary chemical vapor deposition (RCVD) process for nanomaterial synthesis and coating on powder-based materials. The rotary reactor offers a significant improvement over traditional CVD methods having horizontal and fixed reaction chambers. The RCVD system yields enhanced productivity and surface coating uniformity of nanoparticles applied in various purposes, such as efficient heat dissipation, surface hardness enhancement, and enhanced energy storage performances. The effectiveness of the RCVD system would open up new possibilities in various applications because uniform coating on powder-based materials with massive productivity is inevitable to develop multi-functional materials with high reliability.

키워드

Thermal chemical vapor deposition; Rotary chemical vapor deposition; Powder coating; Mass production.

부식 검출과 분석에 적용한 영상 처리 기술 동향

김범수, 권재성, 양정현*

경상국립대학교 기계시스템공학과

The Korean Society of Surface Science and Engineering, Vol. 56, No. , pp. 353-370.

초록

Corrosion detection and analysis is a very important topic in reducing costs and preventing disasters. Recently, image processing techniques have been widely applied to corrosion identification and analysis. In this work, we briefly introduces traditional image processing techniques and machine learning algorithms applied to detect or analyze corrosion in various fields. Recently, machine learning, especially CNN-based algorithms, have been widely applied to corrosion detection. Additionally, research on applying machine learning to region segmentation is very actively underway. The corrosion is reddish and brown in color and has a very irregular shape, so a combination of techniques that consider color and texture, various mathematical techniques, and machine learning algorithms are used to detect and analyze corrosion. We present examples of the application of traditional image processing techniques and machine learning to corrosion detection and analysis.

키워드

Corrosion, Color Models, Image Segmentation, Machine Learning

수송/저장용 수소 생산 확대를 위한 암모니아의 안전 위험 관리 표준 동향

주형국a,b, 이혁주a,b, 이창현a,b, 봉성율c,*

a 단국대학교 과학기술대학 에너지공학과, b 단국대학교 청정 수소 및 암모니아 혁신연구센터, c 공주대학교 화학교육과

The Korean Society of Surface Science and Engineering, Vol. 56, No. , pp. 371-379.

초록

Ammonia, which is closely related to our lives, has a significant impact on our lives as a representative substance for crop cultivation. Recently, it has gained attention as an efficient and productive hydrogen/storing substance that can replace fossil fuels. Efforts are being made to utilize it as a renewable energy source through thermochemical and electrochemical reactions. However, the use of ammonia, which encompasses the era, carries inherent toxicity, so a comprehensive understanding of ammonia safety is necessary. To ensure safety in the transportation and storage of ammonia and chemical substances domestically and internationally, national and organizational standards are being developed and provided through documents and simple symbols to help people understand. This review explores the chemical characteristics of ammonia, its impact on human health, and the global trends in safety standards related to ammonia. Through this examination, the paper aims to contribute to the discourse on the safety and risk management of ammonia transport and storage, crucial for achieving carbon neutrality and expanding the hydrogen economy.

키워드

Ammonia; Ammonia Certification; Hydrogen Storage; Safety; Risk assessment

Pyroelectricity of BaTiO3-doped PMNT ferroelectric system for pyroelectric sensor

Yeon Jung Kim*

College of Engineering, Dankook University, Yongin 16890, Korea

The Korean Society of Surface Science and Engineering, Vol. 56, No. , pp. 380-385.

초록

In this study, an MPB PMNT system containing 0.05 to 0.10 wt.% BaTiO3 was synthesized using a traditional chemical method and its pyroelectricity was investigated. Pyroelectricity, dielectricity, and ferroelectricity of the synthesized BaTiO3-PMNT system were analyzed by heat treatment at 1240~1280 ℃ for 4 hours to evaluate its applicability as a pyroelectric sensor. Unlike the simple ABO3 ferroelectric, the BaTiO3-doped PMNT system exhibited phase transition characteristics over a wide temperature range typical of complex perovskite structures. Although no dramatic change could be confirmed depending on the amount of BaTiO3 added, stable pyroelectricity was maintained near room temperature and over a wide temperature range. When the amount of BaTiO3 added increased from 0.05BaTiO3-PMNT to 0.10BaTiO3-PMNT, the electric field slightly increased from 5.00x103 kV/m to 6.75x103 kV/m, and the maximum value of remanent polarization slightly increased from 0.223 C/m2 to 0.234 C/m2. The pyroelectric coefficients of 0.05BaTiO3-PMNT and 0.10BaTiO3- PMNT at room temperature were measured to be ~0.0084 C/m2K and ~0.0043 C/m2K, respectively. The relaxor ferroelectric properties of the BaTiO3-PMNT system were confirmed by analyzing the plot of Kmax/K versus (T-Tmax)γ. The BaTiO3-doped MPB PMNT system showed a distinct pyroelectric performance index at room temperature, and the values were Fv ~ 0.0362 m2/C, Fd ~ 0.575x10-4 Pa-1/2.

키워드

BaTiO3 ; PMNT ; Ferroelectric hysteresis ; Pyroelectricity.

Reduction Kinetics of Gold Nanoparticles Synthesis via Plasma Discharge in Water

Sung-Min Kima, Woon-Young Leea, Jiyong Parkb,*, Sang-Yul Leec,*

a Heat and Surface Technology R&D Department, Korea Institute of Industrial Technology (KITECH), Incheon 21999, Republic of Korea b Advanced Joining & Additive Manufacturing R&D Department, Korea Institute of Industrial Technology (KITECH), Incheon 21999, Republic of Korea c Center for Surface Technology and Applications, Department of Materials

The Korean Society of Surface Science and Engineering, Vol. 56, No. , pp. 386-392.

초록

In this work, we describe the reduction kinetics of gold nanoparticles synthesized by plasma discharge in aqueous solutions with varied voltages and precursor (HAuCl4) concentrations. The reduction rate of [AuCl4] was determined by introducing NaBr to the gold colloidal solution synthesized by plasma discharge, serving as a catalyst in the reduction process. We observed that [AuCl4] was completely reduced when its characteristic absorption peak at 380 nm disappeared, indicating the absence of [AuCl4] for ligand exchange with NaBr. The reduction rate notably increased with the rise in discharge voltage, attributable to the intensified plasma generated by ionization and excitation, which in turn accelerated the reduction kinetics. Regarding precursor concentration, a lower concentration was found to retard the reduction reaction, significantly influencing the reduction kinetics due to the presence of active H+ and H radicals. Therefore, the production of strong plasma with high plasma density was observed to enhance the reduction kinetics, as evidenced by optical emission spectroscopy.

키워드

Plasma process in aqueous solutions; ligand exchange reaction; reduction kinetics

Synthesis of Ce-doped In2O3 nanoparticles via a microwave-assisted hydrothermal pathway and their application as an ultrafast breath acetone sensor

Byeong-Hun Yua, Sung Do Yunb, Chan Woong Nab,*, Ji-Wook Yoona,*

aDepartment of Electronic and Information Materials Engineering, Division of Advanced Materials Engineering, Jeonbuk National University, Jeonju Baekjaedaero 567, Korea bDongnam Division, Korea Institute of Industrial Technology, Busan Baegyang-daero 804, Korea

The Korean Society of Surface Science and Engineering, Vol. 56, No. , pp. 393-400.

초록

Acetone, a metabolite detected from the exhaled breath of people doing a diet, can be used for non-invasive monitoring of diet efficiency. Thus, gas sensors with rapid response and recovery characteristics to acetone need to be developed. Herein, we report ultrafast acetone sensors using Ce-doped In2O3 nanoparticles prepared by the one-pot microwave-assisted hydrothermal method. The pure In2O3 sensor shows a high response and fast response time (τres = 6 s) upon exposure to 2 ppm acetone at 300 ℃, while exhibiting a relatively sluggish recovery speed (τrecov = 1129 s). When 20 wt% Ce is doped, the τrecov of the sensor significantly decreased to 45 s withholding the fast-responding characteristic (τres = 6 s). In addition, the acetone response (resistance ratio, S) of the sensor is as high as 5.8, sufficiently high to detect breath acetone. Moreover, the sensor shows similar acetone sensing characteristics even under a highly humid condition (relative humidity of 60%) in terms of τres (6 s), τrecov (47 s), and S (4.7), demonstrating its high potential in real applications. The excellent acetone sensing characteristics of Ce-doped In2O3 nanoparticles are discussed in terms of their size, composition, phase, and oxygen adsorption on the sensing surface.

키워드

Gas sensor, acetone, fast recovery, Ce-In2O3, microwave-assisted hydrothermal synthesis

Effect of ZnO Nanoparticle Presence on SCC Mitigation in Alloy 600 in a Simulated Pressurized Water Reactors Environment

Sung-Min Kima, Woon Young Leea, Sekown Oha,*, Sang-Yul Leeb,*

aHeat & Surface Technology R&D Department, Korea Institute of Industrial Technology (KITECH), Incheon, 21999, Republic of Korea. bDepartment of Materials Engineering, Korea Aerospace University, 10540, Republic of Korea.

The Korean Society of Surface Science and Engineering, Vol. 56, No. , pp. 401-411.

초록

This study investigates the synthesis, characterization, and application of zinc oxide (ZnO) nanoparticles for corrosion resistance and stress corrosion cracking (SCC) mitigation in high-temperature and high-pressure environments. The ZnO nanoparticles are synthesized using plasma discharge in water, resulting in rod-shaped particles with a hexagonal crystal structure. The ZnO nanoparticles are applied to Alloy 600 tubes in simulated nuclear power plant atmospheres to evaluate their effectiveness. X-ray diffraction and X-ray photoelectron spectroscopy analysis reveals the formation of thermodynamically stable ZnCr2O4 and ZnFe2O4 spinel phases with a depth of approximately 35 nm on the surface after 240 hours of treatment. Stress corrosion cracking (SCC) mitigation experiments reveal that ZnO treatment enhances thermal and mechanical stability. The ZnO-treated specimens exhibit increased maximum temperature tolerance up to 310 °C and higher-pressure resistance up to 60 bar compared to non-treated ZnO samples. Measurements of crack length indicate reduced crack propagation in ZnO-treated specimens. The formation of thermodynamically stable Zn spinel structures on the surface of Alloy 600 and the subsequent improvements in surface properties contribute to the enhanced durability and performance of the material in challenging high-temperature and high-pressure environments. These findings have significant implications for the development of corrosion-resistant materials and the mitigation of stress corrosion cracking in various industries.

키워드

SCC, ZnO nanoparticle, ECP, Spinel structure, PWR, Alloy 600

음이온 교환막 수전해 적용을 위한 고균일 고내구 코발트 산화물 전극의 제조 및 공정 조건 최적화

이호석a,b, 명신우a, 박준영a, 박언주a, 허성준a, 김남인a, 이재훈a, 정재훈a, 정재엽a, 진송a, 이주영a, 이상호b, 김치호a,*, 최승목a,c,*

a한국재료연구원 그린수소재료연구실, b부경대학교 화학공학과, c과학기술연합대학원대학교 신소재공학과

The Korean Society of Surface Science and Engineering, Vol. 56, No. , pp. 412-419.

초록

Anion exchange membrane electrolysis is considered a promising next-generation hydrogen production technology that can produce low-cost, clean hydrogen. However, anion exchange membrane electrolysis technology is in its early stages of development and requires intensive research on electrodes, which are a key component of the catalyst-system interface. In this study, we optimized the pressure conditions of the hot-pressing process to manufacture cobalt oxide electrodes for the development of a high uniformity and high adhesion electrode production process for the oxygen evolution reaction. As the pressure increased, the reduction of pores within the electrode and increased densification of catalytic particles led to the formation of a uniform electrode surface. The cobalt oxide electrode optimized for pressure conditions exhibited improved catalytic activity and durability. The optimized electrode was used as the anode in an AEMWE single cell, exhibiting a current density of 1.53 A cm-2 at a cell voltage of 1.85 V. In a durability test conducted for 100 h at a constant current density of 500 mA cm-2, it demonstrated excellent durability with a low degradation rate of 15.9 mV kh-1, maintaining 99% of its initial performance.

키워드

Hydrogen production, Anion exchange membrane water electrolysis, Oxygen evolution reaction, Cobalt Oxide, Highly uniform electrode.

백금 담지 다공성 산화인듐 나노입자 구조를 이용한 수소센서

윤성도a,b, 명윤a, 나찬웅a,*

a한국생산기술연구원 동남본부, b고려대학교 신소재공학과

The Korean Society of Surface Science and Engineering, Vol. 56, No. , pp. 420-426.

초록

We prepared a highly sensitive hydrogen (H2) sensor based on Indium oxides (In2O3) porous nanoparticles (NPs) loaded with Platinum (Pt) nanoparticle in the range of 1.6~5.7 at.%. In2O3 NPs were fabricated by microwave irradiation method, and decorations of Pt nanoparticles were performed by electroless plating on In2O3 NPs. Crystal structures, morphologies, and chemical information on Pt-loaded In2O3 NPs were characterized by grazing-incident X-ray diffraction, field-emission scanning electron microscopy, energy-dispersive X-ray spectroscopy, respectively. The effect of the Pt nanoparticles on the H2-sensing performance of In2O3 NPs was investigated over a low concentration range of 5 ppm of H2 at 150–300 °C working temperatures. The results showed that the H2 response greatly increased with decreasing sensing temperature. The H2 response of Pt loaded porous In2O3 NPs is higher than that of pristine In2O3 NPs. H2 gas selectivity and high sensitivity was explained by the extension of the electron depletion layer and catalytic effect. Pt loaded porous In2O3 NPs sensor can be a robust manner for achieving enhanced gas selectivity and sensitivity for the detection of H2.

키워드

Gas sensor, Hydrogen, fast recovery, In2O3 , microwave irradiation method, Platinum

제일원리 전산모사법을 이용한 폐양액 수전해용 코발트 산화물 촉매의 흡착 이온 특성 연구

우주완a, 이종민b, 서민호a*

a 부경대학교 공과대학 나노융합공학과, b 한국에너지기술연구원 연료전지실증연구센터

The Korean Society of Surface Science and Engineering, Vol. 56, No. , pp. 427-436.

초록

In the industry, it is recognized that human activities significantly lead to a large amount of wastewater, mainly due to the increased use of water and energy. As a result, the growing field of wastewater resource technology is getting more attention. The common technology for hydrogen production, water electrolysis, requires purified water, leading to the need for desalination and reprocessing. However, producing hydrogen directly from wastewater could be a more cost-effective option compared to traditional methods. To achieve this, a series of first-principle computational simulations were conducted to assess how waste nutrient ions affect standard electrolysis catalysts. This study focused on understanding the adsorption mechanisms of byproducts related to the oxygen evolution reaction (OER) in anion exchange membrane (AEM) electrolysis, using Co3O4 as a typical non-precious metal catalyst. At the same time, efforts were made to develop a comprehensive free energy prediction model for more accurate predictions of OER results.

키워드

: Electrolysis, Electrocatalyst, Oxygen evolution reaction, Density Functional Theory, Waste nutrient solutions

폴리올법으로 제조된 Pt/C 촉매의 연료전지 적용을 위한 나노 입자 크기제어

허준, 윤혁준, 최지훈, 문채린, 최순목*

한국기술교육대학교 에너지신소재화학공학부

The Korean Society of Surface Science and Engineering, Vol. 56, No. , pp. 437-442.

초록

This research aims to enhance the efficiency of Pt/C catalysts due to the limited availability and high cost of platinum in contemporary fuel cell catalysts. Nano-sized platinum particles were distributed onto a carbon-based support via the polyol process, utilizing the metal precursor H2PtCl6⦁6H2O. Key parameters such as pH, temperature, and RPM were carefully regulated. The findings revealed variations in the particle size, distribution, and dispersion of nano-sized Pt particles, influenced by temperature and pH. Following sodium hydroxide treatment, heat treatment procedures were systematically executed at diverse temperatures, specifically 120, 140, and 160 °C. Notably, the thermal treatment at 140 °C facilitated the production of Pt/C catalysts characterized by the smallest platinum particle size, measuring at 1.49 nm. Comparative evaluations between the commercially available Pt/C catalysts and those synthesized in this study were meticulously conducted through cyclic voltammetry, X-ray diffraction (XRD), and field-emission scanning electron microscopy-energy dispersive X-ray spectroscopy (FE-SEM EDS) methodologies. The catalyst synthesized at 160 °C demonstrated superior electrochemical performance; however, it is imperative to underscore the necessity for further optimization studies to refine its efficacy.

키워드

Polyol process; Pt/C catalyst; Fuel cell; Nano particle; Cyclic voltammetry

환경차폐코팅용 이터븀 실리케이트의 고온 수증기부식 거동

김민지a,b, 최재형a,b, 김성원a,*

a한국세라믹기술원 이천분원 엔지니어링소재센터, b고려대학교 신소재공학과

The Korean Society of Surface Science and Engineering, Vol. 56, No. , pp. 443-450.

초록

SiC/SiCf CMC is vulnerable to water vapor corrosion at a high temperature of 1500℃. So, EBC (Environmental Barrier Coating) materials are required to protect Si-based CMCs. Ytterbium silicates are reported to coefficient of thermal expansion (CTE) similar to that of the based material, such as SiC/SiCf CMC. When the EBC materials expose to high temperature environment, the interface between ytterbium silicates and SiC/SiCf CMC is not separated, and the coating purpose can be safely achieved. For the perspective of EBC applications, thermally grown oxide (TGO) layer with different CTE is formed by the reaction with water vapor in EBC, which leads to a decrease in life time. In this study, we prepare the two types of ytterbium silicates to observe the corrosion behavior during the expose to high temperature and water vapor. In order to observe this behavior, the steam-jet furnace is prepared. In addition, phase formation of these ytterbium silicates is analyzed with microstructures by the before/after steam-jet evaluation at 1500℃ for 100 h.

키워드

Environmental barrier coatings(EBCs); ytterbium disilicate; steam-jet; phase formation.

ZnO/Cu/ZnO 박막의 차량용 저방사 및 전기광학적 특성 연구

이연학a, 김선경b, 엄태용b, 정용하c, 소상우c, 손영길d, 손동일b, 김대일a*

a울산대학교 첨단소재공학부, b동국실업주식회사, c울산테크노파크 자동차기술지원단, d나라엠앤디(주)

The Korean Society of Surface Science and Engineering, Vol. 56, No. , pp. 451-456.

초록

Transparent conducting films having a three layered structure of ZnO/Cu/ZnO (ZCZ) were deposited onto the glass substrates by using RF and DC magnetron sputtering at room temperature. The emissivity and opto-electrical properties of the films were investigated with a varying thickness(5, 10, 15 nm) of the Cu interlayer. With increasing the Cu thickness to 15 nm, the films showed a enhanced electrical properties. Although ZnO 30/Cu 15/ZnO 30 nm film shows a lower resistivity of 5.2×10−5 Ωcm, it’s visible transmittance is deteriorated by increased optical absorbtion of the films. In addition, X-ray diffraction patterns indicated that the insertion of Cu interlayer improve the grain size of ZnO films, which is favor for the electrical and optical properties of transparent conducting films. From the observed low emissivity of the films, it is concluded that the ZCZ thin films with optimal thickness of Cu interlayer can be applied effectively for the car’s window coating materials.

키워드

ZnO/Cu/ZnO, Magnetron sputtering, Emissivity, Electrical property, X-ray diffraction.

  • Vol. 55 No.1
  • Vol. 55 No.2
  • Vol. 55 No.3
  • Vol. 55 No.4
  • Vol. 55 No.5
  • Vol. 55 No.6

Vol. 55 No.1

고도로 정렬된 TiO2 나노튜브의 제조와 활용

유정은, 이기영*

인하대학교 화학 화학공학융합학과

KISE Journal of Korean Institute of Surface Engineering, Vol. 55, No. , pp. 1-8.

초록

Titanium dioxide (TiO2) is one of the most intensively investigated materials in materials science. Mostly, TiO2 has been used in the form of nanoparticles, but recently new highly ordered TiO2 nanotubes (U-tube) has been introduced and applied to variou

키워드

Anodization, TiO2 nanotubes, Photocatalysis, Memristor, Photoelectrochemistry

Effect of form of applied current on the formation behavior of PEO films on Al6082 alloy

Sungmo Moon1,2,*, Juseok Kim1,3 and Heon-Cheol Shin3

1Surface Technology Division, Korea Institute of Materials Science, 51508 Korea 2Advanced Materials Engineering, Korea University of Science and Technology, 34113 Korea 3Department of Materials Science and Engineering, Pusan National University, 46241 Kor

KISE Journal of Korean Institute of Surface Engineering, Vol. 55, No. , pp. 9-17.

초록

This work is concerned with the formation behavior of PEO (Plasma Electrolytic Oxidation) films on Al6082 alloy under the application of direct current (DC) and alternating current (AC) in an alkaline solution. Arc initiation voltage became much lower by

키워드

Form of current, Plasma electrolytic oxidation, PEO, AA6082

저탄소강의 크롬도금층 형성 및 내식성에 미치는 Na2MoO4 첨가의 영향

배기창1, 김기욱1, 김주호1, 이정훈1,*

1부경대학교 금속공학과

KISE Journal of Korean Institute of Surface Engineering, Vol. 55, No. , pp. 18-23.

초록

Presence of cracks in electrodeposited hard chromium layer, which provide a path of corrosive media to steel substrate, is a serious issue in metal finishing with chromium electroplating. In this study, we added sodium molybdate in an electrolyte for chro

키워드

Low carbon steel, Chromium, Electroplating, Na2MoO4, Corrosion resistance

NH4F가 첨가된 0.5 M 옥살산 전처리가 AZ91 마그네슘 합금의 PEO 피막 형성에 미치는 영향

권두영1,2, 송풍근2, 문성모1,3*

1한국재료연구원 나노표면재료연구본부 2부산대학교 재료공학부 3과학기술연합대학원대학교 신소재공학과

KISE Journal of Korean Institute of Surface Engineering, Vol. 55, No. , pp. 24-31.

초록

This study investigated the effect of pre-treatment on the PEO film formation of AZ91 Mg alloy. The pre-treatment was conducted for 10 min at room temperature in 0.5 M oxalic acid (C2H2O4) solution containing various ammonium fluoride (NH4F) concentration

키워드

AZ91 Mg alloy, Plasma electrolytic oxidation, Pre-treatment

수열합성법으로 제조된 니켈코발트산화물(NiCo2O4) 나노시트 전극의 특성

이석희a, 차현진a, 이상운a, 김준아a, 박정환b, 손영국a,*

a부산대학교 재료공학과, b신라대학교 신소재공학과

KISE Journal of Korean Institute of Surface Engineering, Vol. 55, No. , pp. 32-37.

초록

In a carbon-zero social atmospher, research is underway to reduce the use of fossil fuels. Interest in cleaner energy sources and their storage system is growing, and among them, research on effective energy storage is being actively conducted. Energy s

키워드

NiCo2O4, Hydrothermal synthesis, Supercapacitor

Vol. 55 No.2

전이금속 옥살산염 기반 알칼라인 수전해 전극 응용기술 동향

하재윤, 김용태*, 최진섭*

인하대학교 화학·화학공학 융합학과

KISE Journal of Korean Institute of Surface Engineering, Vol. 55, No. , pp. 38-50.

초록

As a low-cost and high-efficiency electrocatalysts with high performance and stability become a key challenge in the development of the practical use of water electrolysis, there is an intense interest in transition-metal oxalate-based materials. Transiti

키워드

Transition metal; Oxalate; Water electrolysis; Electrocatalysts.

ZIF-8과 탄소기반물질 복합체를 이용한 슈퍼커패시터 및 화학센서의 최신연구동향

김상준a,b, 이재민a, 조승근a, 이은빈a, 이승기a, 이정우a,*

a부산대학교 재료공학부, b부산대학교 소재기술연구소

KISE Journal of Korean Institute of Surface Engineering, Vol. 55, No. , pp. 51-62.

초록

Metal-organic framework (MOF) is one of the representative porous materials composed of metal ions and organic linkers. In spite of many advantages of the MOFs such as high specific surface area and ease of structure control, drawbacks have become obsta

키워드

Metal-organic framework; ZIF-8; Carbon-based materials; Composite; Supercapacitor; Sensor

Cupric oxide thin film as an efficient photocathode for photoelectrochemical water reduction

Jong-Hyun Park, Hyojin Kim*

Department of Materials Science and Engineering, Chungnam National University, Daejeon 34134, Republic of Korea

KISE Journal of Korean Institute of Surface Engineering, Vol. 55, No. , pp. 63-69.

초록

Preparing various types of thin films of oxide semiconductors is a promising approach to fabricate efficient photoanodes and photocathodes for hydrogen production via photoelectrochemical (PEC) water splitting. In this work, we investigate the feasibility

키워드

Cupric oxide; Oxide thin film; Photocathode; Photoelectrochemical water reduction; Hydrogen production

유도결합형 플라즈마 마그네트론 스피터로 제작된 CrN 코팅막의 전기화학적 물성 비교 연구

장훈, 전성용*

목포대학교 신소재공학과

KISE Journal of Korean Institute of Surface Engineering, Vol. 55, No. , pp. 70-76.

초록

In this paper, we compared the properties of the chromium nitride (CrN) films prepared by inductively coupled plasma magnetron sputtering (ICPMS). As a comparison, CrN film prepared by a direct current magnetron sputtering (dcMS) is also studied. The cry

키워드

Inductively coupled plasma; Corrosion resistance; Chromium Nitride

유도결합 플라즈마 파워에 따른 MoN 코팅막의 결정구조 및 기계·전기적 특성 변화

장훈, 전성용*

목포대학교 신소재공학과

KISE Journal of Korean Institute of Surface Engineering, Vol. 55, No. , pp. 77-83.

초록

Nanocrystalline MoN coatings were prepared by inductively coupled plasma magnetron sputtering (ICPMS) changing the plasma power from 0 W to 200 W. The properties of the coatings were analyzed by x-ray diffraction, field emission scanning electron microsco

키워드

Inductively coupled plasma; Υ-Mo2N; Crystal structure; Roughness; Electrical resistivity

합성 조건 변화에 따른 전기화학적 박리 그래핀/철 산화물 복합체 제조 연구

박은진, 김용태*, 최진섭*

인하대학교 화학·화학공학 융합학과

KISE Journal of Korean Institute of Surface Engineering, Vol. 55, No. , pp. 84-90.

초록

With the growing interest in energy storage and conversion systems including secondary batteries, capacitors, and water electrolysis, various electrode materials are being developed to improve the energy efficiency. Among them, graphene is regarded as one

키워드

Graphene; Transition metal; Electrochemical exfoliation

Ag 중간층 두께에 따른 ZnO 박막의 광학적, 전기적 특성 연구

김현진a,b, 장진규a, 최재욱a,b, 이연학a, 허성보b, 공영민a, 김대일a,*

a울산대학교 첨단소재공학부 b한국생산기술연구원 동남본부 첨단하이브리드생산기술센터

KISE Journal of Korean Institute of Surface Engineering, Vol. 55, No. , pp. 91-95.

초록

ZnO single layer (60 nm thick) and ZnO with Ag interlayer (ZnO/Ag/ZnO; ZAZ) films were deposited on the glass substrates by using radio frequency (RF) and direct current (DC) magnetron sputter to evaluate the effectiveness of Ag interlayer on the optical

키워드

ZnO/Ag/ZnO; Magnetron sputtering; Visible transmittance; Electrical resistivity.

서로 다른 증착 온도에서 성장된 BaWO4:Sm3+ 형광체 박막의 구조, 광학, 표면 형상의 특성

조신호*

신라대학교 신소재공학과

KISE Journal of Korean Institute of Surface Engineering, Vol. 55, No. , pp. 96-101.

초록

The effects of the growth temperature on the structural, optical, and morphological properties of BaWO4:Sm3+ phosphor thin films were investigated. The BaWO4:Sm3+ thin films were grown on quartz substrates at several growth temperatures by radio-frequency

키워드

Thin Film, Photoluminescence, Growth temperature

티오말산을 착화제로 하고 아미노에탄티올을 환원제로 하는 비시안계 무전해 Au 도금액의 석출 거동 및 도금 특성

한재호a,*, 김동현b

a주식회사 이씨텍, b주식회사 엠에스씨

KISE Journal of Korean Institute of Surface Engineering, Vol. 55, No. , pp. 102-119.

초록

Gold plating is used as a coating of connecter in printed circuit boards, ceramic integrated circuit packages, semiconductor devices and so on, because the film has excellent electric conductivity, solderability and chemical properties such as durability

키워드

cyanide-free plating; electroless Au plating; Immersion plating; Autocatalytic plating; complexing agent; reducing agent; deposition rate; solderability.

캐피라리 전기 영동법에 의한 비시안 무전해 Au 도금액의 분석

한재호a,*, 김동현b

a주식회사 이씨텍, b주식회사 엠에스씨

KISE Journal of Korean Institute of Surface Engineering, Vol. 55, No. , pp. 120-132.

초록

In the non-cyanide-based electroless Au plating solution using thiomalic acid as a complexing agent and aminoethanethiol as a reducing agent, analysis of each component constituting the plating solution is essential for the analysis of the reaction mecha

키워드

Cyanide free plating; electroless Au plating; Immersion ating; Autocatalytic plating; Capillary Electrophoresis; Complexing agent; Reducing agent.

Vol. 55 No.3

고분자전해질 연료전지용 금속분리판의 특성 및 코팅 기술

문성모a,b*, 이수연a,b, 권두영a,c

a한국재료연구원 나노표면재료연구본부 · b과학기술연합대학원대학교 신소재공학과 · c부산대학교 재료공학부

KISE Journal of Korean Institute of Surface Engineering, Vol. 55, No. , pp. 133-142.

초록

This paper reviews bipolar plate materials and coatings for polymer electrolyte fuel cell. First, six roles and 10 requirements of the bipolar plate are described in detail. Secondly, type of materials for the bipolar plate and their advantages and disadv

키워드

Fuel cell; PEFC; Bipolar plate; Coatings

Corrosion behaviors of plasma electrolytic oxidation (PEO) treated highsilicon aluminum alloys

Deok-Yong Parka,*, Chong-Hyun Changb, Yong-Jun Oha, Nosang V. Myungc, Bongyoung Yood

aDepartment of Advanced Materials Engineering, Hanbat National University, Daejeon, 34158, Republic of Korea bCalifornia NanoSystems Institute, University of California, Los Angeles, CA 90025, USA cDepartment of Chemical and Biomolecular Engineering, Univ

KISE Journal of Korean Institute of Surface Engineering, Vol. 55, No. , pp. 143-155.

초록

Ceramic oxide layers successfully were formed on the surface of cast Al alloys with high Si contents using plasma electrolytic oxidation (PEO) process in electrolytes containing Na2SiO3, NaOH, and additives. The microstructure of the oxide layers was syst

키워드

Electrochemical process; plasma electrolytic oxidation (PEO); corrosion behaviors; high-silicon aluminum alloys.

Suggestion for deep learning approach to solve the interference effect of ammonium ion on potassium ion-selective electrode

Min-Yeong Kima, Jae-Yeong Heoa, Eun Hun Ohc, Joo-Yul Leea, and Kyu Hwan Leea, b,*

aDepartment of Electrochemistry, Surface Technology Division, Korea Institute of Materials Science (KIMS), Changwon, 51508, Republic of Korea bAdvanced Materials Engineering, University of Science and Technology (UST), Changwon, 51508, Republic of Korea c

KISE Journal of Korean Institute of Surface Engineering, Vol. 55, No. , pp. 156-163.

초록

An ammonium ion with a size and charge similar to that of potassium can bind to valinomycin, which is used as an ion carrier for potassium, and cause a meaningful interference effect on the detection of potassium ions. Currently, there are few ion sensors

키워드

: K ion detection; ion-selective electrode; NH4 + interference behavior; K+ sensor; deep learning.

슈퍼픽셀 DBSCAN 군집 알고리즘을 이용한 용융아연도금 강판의 부식이미지 분석

김범수a, 김연원b, 이경황c, 양정현a*

a경상국립대학교 기계시스템공학과, b목포해양대학교 메카트로닉스공학부, c포스코 철강솔루션연구소

KISE Journal of Korean Institute of Surface Engineering, Vol. 55, No. , pp. 164-172.

초록

Hot-dip galvanized steel(GI) is widely used throughout the industry as a corrosion resistance material. Corrosion of steel is a common phenomenon that results in the gradual degradation under various environmental conditions. Corrosion monitoring is to tr

키워드

Corrosion; Superpixel; DBSCAN; k-means clustering; HSV color space.

은 나노 와이어 전극의 대면적 전사를 위한 롤 투 롤 공정

박양규a, 김재필b, 김완호b, 정강a, *, 정호중b, *

a전남대학교, 기계설계공학부 b한국광기술원, 조명소재부품연구센터

KISE Journal of Korean Institute of Surface Engineering, Vol. 55, No. , pp. 173-179.

초록

This study presents a roll-to-roll process which is capable of Ag nanowire (AgNW) transfer from polyethylene terephthalate (PET) film to polycarbonate (PC) film. We developed a roll-to-roll machine that consists of two film suppliers, a coater of photo-cu

키워드

Roll-to-roll; Ag nanowire; AgNW/PET; AgNW/PC.

전착법을 이용한 촉매-기판 일체형 구리 코발트 산화물 전극 개발 및 음이온 교환막 수전해 적용

김도형a,b, 김글한a, 최승목a, 이지훈a, 정재훈a, 이경복a,b, 양주찬a,*

a한국재료연구원 그린수소재료연구실, b부산대학교 재료공학부

KISE Journal of Korean Institute of Surface Engineering, Vol. 55, No. , pp. 180-186.

초록

The production of hydrogen via water electrolysis (i.e., green hydrogen) using renewable energy is key to the development of a sustainable society. However, most current electrocatalysts are based on expensive precious metals and require the use of highly

키워드

Hydrogen production; Anion exchange membrane water electrolysis; Oxygen evolution reaction; Electrodeposition; Direct growth.

Vol. 55 No.4

Electrodeposited WO3 films and their application in electrochromic boards

Dae-Hyeon Kim, Kwang-Mo Kang, and Yoon-Chae Nah*

School of Energy, Materials, and Chemical Engineering, Korea University of Technology and Education (KOREATECH), 1600 Chungjeol-ro, Cheonan, Chungnam 31253, Republic of Korea

KISE Journal of Korean Institute of Surface Engineering, Vol. 55, No. , pp. 187-195.

초록

WO3 thin films were synthesized by electrodeposition, and their electrochromic properties were investigated. The application of static voltage produced WO3 films with a smooth, compact surface morphology, and the film thickness linearly increased with the

키워드

Electrochromism, Electrodeposition, WO3, 3D printer, electrochromic boards

Anodic oxidation behavior of AZ31 Mg alloy in aqueous solution containing various NaF concentrations

Sungmo Moona,b*, Duyoung Kwona,c

aNano Surface Materials Division, Korea Institute of Materials Science, Gyeongnam 51508, Republic of Korea bAdvanced Materials Engineering, Korea University of Science and Technology, Daejeon 34113, Republic of Korea cDepartment of Materials Science and E

KISE Journal of Korean Institute of Surface Engineering, Vol. 55, No. , pp. 196-201.

초록

This paper deals with anodic oxidation behavior of AZ31 Mg alloy in aqueous solutions containing various NaF concentrations from 0.01 M to 1 M. Three different voltage-time curves and anodic oxide formation behaviors appeared with concentration of NaF in

키워드

AZ31 Mg alloy; Plasma electrolytic oxidation; Anodic oxidation behavior; NaF.

Comparison of Deposition Behavior and Properties of Cyanide-free Electroless Au Plating on Various Underlayer Electroless Ni-P films

Dong-Huyn Kim

MSC Co., Ltd.

KISE Journal of Korean Institute of Surface Engineering, Vol. 55, No. , pp. 202-214.

초록

Internal connections between device, package and external terminals for connecting packaging and printed circuit board are normally manufactured by electroless Ni-P plating followed by immersion Au plating (ENIG process) to ensure the connection reliabili

키워드

Cyanide-free plating; Electroless Au plating; Immersion plating; Autocatalytic plating, Deposition rate; Solderability; Particle size.

열성장을 통해 형성된 산화구리의 광전기화학적 특성

최용선a, 유정은a,b,*, 이기영a,*

a 인하대학교 화학·화학공학융합학과 b 인하대학교 스마트 에너지 소재 및 공정 교육 연구단

KISE Journal of Korean Institute of Surface Engineering, Vol. 55, No. , pp. 215-221.

초록

In the present work, copper oxide thin films were formed by heat-treatment method with different temperatures and atmosphere, e.g., at 200 ~ 400 ℃; in air and Ar atmosphere. The morphological, electrical and optical properties of the thermally fabricated

키워드

Photoelectrochemistry; Heat-treatment; Copper oxide; Water splitting; Thermal oxide.

고전류밀도에서의 Benzothiazole 첨가제의 동박 특성에 미치는 영향

우태규a,b*, 강병재c, 박종재c, 박일송c,d*

a 전북대학교 유연인쇄전자전문대학원 유연인쇄전자공학과 b 전북대학교 로스알라모스연구소-전북대학교 한국공학연구소 c 전북대학교 금속공학과 d 전북대학교 신소재공학부 및 신소재개발연구센터

KISE Journal of Korean Institute of Surface Engineering, Vol. 55, No. , pp. 222-230.

초록

The electroplating for copper foils has many advantages in economics. During the electroplating, the selection of appropriate additives is needed to manufacture copper foils with various properties. Therefore, it is investigated the initial plating voltag

키워드

benzothiazole; copper foil; electroplating; surface roughness; additives.

병렬 연결된 리튬이온전지 셀의 비파괴 전기화학적 열화상태 진단

이가람, 정지윤, 김용태*, 최진섭*

인하대학교 화학공학과

KISE Journal of Korean Institute of Surface Engineering, Vol. 55, No. , pp. 231-235.

초록

As environmental pollution becomes more serious, the demand for electric vehicles (EVs) and lithium-ion batteries for electric vehicles is rapidly increasing worldwide. Accordingly, the amount of waste batteries is also increasing, and a technology for re

키워드

Degradation diagnosis; Parallel-connected cells; Open circuit voltage; Lithium-ion batteries.

오스테나이트 스테인리스강의 해수에서 전기화학적 특성에 미치는 전해연마시간의 영향

황현규a, 신동호a, 허호성a, 김성종b,*

a목포해양대학교 대학원 b목포해양대학교 기관시스템공학부

KISE Journal of Korean Institute of Surface Engineering, Vol. 55, No. , pp. 236-246.

초록

The purpose of this investigation is to examine the corrosion resistance and electrochemical characteristics in seawater of UNS S31603 with electropolishing process time. The roughness improvement rate after electropolishing was improved by about 78% comp

키워드

Electropolishing; Surface roughness; UNS S31603; Potentiodynimic polarization; EIS.

Vol. 55 No.5

반도체 소자용 산화하프늄 기반 강유전체의 원자층 증착법 리뷰

이영환a,+, 권태규b,+, 박민혁a,b*

a서울대학교 신소재공동연구소, b서울대학교 재료공학부

KISE Journal of Korean Institute of Surface Engineering, Vol. 55, No. , pp. 247-260.

초록

Since the first report on ferroelectricity in Si-doped hafnia (HfO2), this emerging ferroelectrics have been considered promising for the next-generation semiconductor devices with their characteristic nonvolatile data storage. The robust ferroelectricity

키워드

semiconductor; ferroelectric; memory device; atomic layer deposition; vacuum technology.

플라즈마 표면처리를 통한 CO2 전기화학적 전환 촉매성능 개선

최용욱*

한국생산기술연구원 에너지소재부품연구그룹

KISE Journal of Korean Institute of Surface Engineering, Vol. 55, No. , pp. 261-272.

초록

CO2 electroreduction is considered as a means to overcome climate change by converting CO2 into value-added chemicals and liquid fuels. Although numerous researchers have screened versatile metal for the use of electrodes, and looked into the reaction mec

키워드

CO2 electroreduction; Plasma; Surface treatment; Electrocatalyst design.

대기 노출된 Al6061 알루미늄 합금 산화막에 대한 미세조직 분석

조준영, 권대엽, 최원준, 반치범*

부산대학교 기계공학부

KISE Journal of Korean Institute of Surface Engineering, Vol. 55, No. , pp. 273-283.

초록

Al6061 aluminum alloy specimens were exposed to atmospheric conditions for maximum 24 months. 24-month exposure specimen showed some more frequent and larger size of corrosion products and pitting on the surface compared with the 12-month exposure specime

키워드

Aluminum alloy; Al6061; Atmospheric corrosion; pitting corrosion; Intergranular corrosion.

마그네트론 스퍼터링법으로 제조된 ZnO/Cu/Al2O3 투명 면상 발열체 연구

민창흠, 최두호*

동의대학교 신소재공학부

KISE Journal of Korean Institute of Surface Engineering, Vol. 55, No. , pp. 284-291.

초록

Herein, we studied ultrathin Cu-layer-based transparent heaters embedded between a ZnO underlayer and an Al2O3 overlayer. The anti-reflecting functions for the ZnO and Al2O3 layers by independently varying the layer thicknesses, with the Cu layer thicknes

키워드

펄스 전류 하에서 AZ31 마그네슘 합금의 플라즈마전해산화 피막의 형성 거동

문성모a,b*

a한국재료연구원 나노표면재료연구본부, b과학기술연합대학원대학교 신소재공학과

KISE Journal of Korean Institute of Surface Engineering, Vol. 55, No. , pp. 292-298.

초록

In this study, PEO (plasma electrolytic oxidation) film formation behavior of AZ31 Mg alloy under application of 300 Hz pulse current was studied by the analyses of V-t curve, arc generation behavior, PEO film thickness and morphology of PEO films with tr

키워드

Plasma electrolytic oxidation; AZ31 Mg alloy; Anodic oxide film; Pulse current.

비시안 무전해 Au 도금의 석출거동에 미치는 하지층 무전해 Ni-P 도금 조건의 영향

김동현a*, 한재호b

a주식회사엠에스씨, b주식회사이씨텍

KISE Journal of Korean Institute of Surface Engineering, Vol. 55, No. , pp. 299-307.

초록

Gold plating is used as a coating of connector in printed circuit boards, ceramic integrated circuit packages, semiconductor devices and so on, because the film has excellent electric conductivity, solderability and chemical properties such as durability

키워드

cyanide-free plating; electroless Au plating; Immersion plating; Autocatalytic plating; deposition rate.

Vol. 55 No.6

열플라즈마를 이용한 재료의 표면개질

강성표, 이한준, 김태희*

원광대학교 화학융합공학과

KISE Journal of Korean Institute of Surface Engineering, Vol. 55, No. , pp. 308-318.

초록

The surface modification and treatment using thermal plasma were reviewed in academic fields. In general, thermal plasma is generated by direct current (DC) and radiofrequency (RF) power sources. Thermal spray coating, a typical commercial process using t

키워드

Thermal plasma, Surface modification, Surface treatment, Coating.

Durability enhancement of anion exchange membranes for water electrolysis: an updated review

Mahamuda Aktera,c, Jong-Hyeok Parka,c, Beom-Seok Kimb, Minyoung Leeb, Dahye Jeongb, Jiyun Shinb, Jin-Soo Parka,b,c,*

aDepartment of Civil, Environmental and Biomedical Engineering, Sangmyung University, Cheonan 30166, Republic of Korea bDepartment of Green Chemical Engineering, Sangmyung University, Cheonan 30166, Republic of Korea cFuture Environment and Energy Researc

KISE Journal of Korean Institute of Surface Engineering, Vol. 55, No. , pp. 319-327.

초록

Ion exchange membranes have been developed from laboratory tools to industrial products with significant technical and trade impacts in the last 70 years. Today, ion exchange membranes are successfully applied for water and energy for different electro-me

키워드

Anion exchange membrane, Durability, Water electrolysis.

표면 반응 제어를 통한 영역 선택적 원자층 증착법 연구 동향

고은총, 안지상, 한정환*

서울과학기술대학교 신소재공학과

KISE Journal of Korean Institute of Surface Engineering, Vol. 55, No. , pp. 328-341.

초록

Area selective atomic layer deposition (AS-ALD) is a bottom-up nanopattern fabrication method that can grow the ALD films only on the desired substrate areas without using photolithography and etching processes. Particularly, AS-ALD has attracted great at

키워드

Area selective atomic layer deposition, selectivity, precursor, activation, deactivation.

Label-free and sensitive detection of purine catabolites in complex solutions by surface-enhanced raman spectroscopy

Batmend Davaa-Ochira,b, Iris Baffour Ansaha,b, Sung Gyu Parka, Dong-Ho Kima,b*

aNano-Bio Convergence Department, Korea Institute of Materials Science (KIMS), Changwon, Gyeongnam 51508, Republic of Korea bAdvanced Materials Engineering Division, University of Science and Technology (UST), 217 Gageong-ro, Yuseong-gu, Daejeon 34113, Re

KISE Journal of Korean Institute of Surface Engineering, Vol. 55, No. , pp. 342-352.

초록

Purine catabolite screening enables reliable diagnosis of certain diseases. In this regard, the development of a facile detection strategy with high sensitivity and selectivity is demanded for point-of-care applications. In this work, the simultaneous det

키워드

Surface-enhanced Raman spectroscopy, Au nanopillars, electrodeposition, hotspots, uric acid, xanthine, hypoxanthine.

Pulsed DC 마그네트론 스퍼터링으로 제조한 소다라임 유리의 고투과 및 대전방지 박막특성 연구

정종국, 임실묵*

한국공학대학교 신소재공학과

KISE Journal of Korean Institute of Surface Engineering, Vol. 55, No. , pp. 353-362.

초록

Recently, transmittance of photomasks for ultra-violet (UV) region is getting more important, as the light source wavelength of an exposure process is shortened due to the demand for technologies about high integration and miniaturization of devices. Mean

키워드

Reactive DC magnetron sputtering, Antireflection coatings, Antistatic coatings, Transparent conductive coatings, Electrostatic damage.

마그네트론 스퍼터링법으로 제조된 ZTZ 박막의 구조적 전기광학적 특성에 미치는 전자빔 조사의 영향

차병철a,†, 장진규b,†, 최진영a,b, 이인식a, 김대욱a, 김유성a, 김대일b,*

a한국생산기술연구원 울산본부 첨단정형공정그룹, b울산대학교 첨단소재공학부

KISE Journal of Korean Institute of Surface Engineering, Vol. 55, No. , pp. 363-367.

초록

Transparent ZnO/Ti/ZnO (ZTZ) tri-layered films were prepared with radio frequency (RF) and direct current (DC) magnetron sputtering on the glass substrate. The thickness of the ZnO and Ti films was kept at 50 and 10 nm to consider the effect of the electr

키워드

ZnO, Ti, XRD, AFM, Figure of merit.

희토류 및 기타 산화물 Doping 양에 따른 YSZ 기반 복합소재의 상형성 거동 분석

최용석a,b, 이계원a,b, 전창우a, 남산b, 오윤석a*

a한국세라믹기술원 이천분원 엔지니어링소재센터, b고려대학교 신소재공학과

KISE Journal of Korean Institute of Surface Engineering, Vol. 55, No. , pp. 368-375 .

초록

YSZ (Yttria Stabilized Zirconia) is used as a thermal barrier coating material for gas turbines due to its low thermal conductivity and high fracture toughness. However, the operating temperature of the gas turbine is rising according to the market demand

키워드

TBC, Modified YSZ, X-Ray Diffraction, Phase analysis, Tetragonality.

플라즈마용사로 증착된 환경차폐코팅 이터븀 실리케이트의 Ar/He 가스 조성에 따른 상형성 및 미세구조 특성

최재형a, 김성원a,*, 김지유b, 문흥수b

a한국세라믹기술원 이천분원 엔지니어링소재센터, b㈜세원하드페이싱 연구소

KISE Journal of Korean Institute of Surface Engineering, Vol. 55, No. , pp. 376-382 .

초록

Yb2Si2O7 has a coefficient of thermal expansion similar to that of the base material of SiC and has excellent corrosion resistance in a high-temperature oxidizing atmosphere including water vapor, so it is being studied as one of the materials for environ

키워드

Environmental barrier coatings (EBCs), Yb2Si2O7, Phase formation, Microstructural characteristics.

폴리카보네이트 소재의 자연폭로와 실내촉진 내후성 영향

문정미, 장호진, 김창환*

한국건설생활환경시험연구원 기후환경실증센터

KISE Journal of Korean Institute of Surface Engineering, Vol. 55, No. , pp. 383-389 .

초록

Natural(outdoor) and accelerated(artificial) weathering tests were performed to investigate their influence on polycarbonate. The polycarbonate materials were prepared of various formulations divided into three batches, with existing, development material

키워드

Outdoor weathering, Accelerated weathering, Yellow-index, Polycarbonate.

Parylene-C 코팅된 의료용 SUS304 소재의 결합력 향상을 위한 플라즈마 처리 효과

김동국a,d, 송태하a, 정용훈c, 강관수c,d, 윤덕규a, 김민욱a,e, 우영재a, 서요한b, 김경아d, 노지형a*

a*대구경북첨단의료산업진흥재단 첨단의료기기개발지원센터, b대구경북첨단의료산업진흥재단 신약개발지원센터 c오송첨단의료산업진흥재단 첨단의료기기개발지원센터, d충북대학교 의과대학 의용생체공학과 e경북대학교 의과대학 의용생체공학과

KISE Journal of Korean Institute of Surface Engineering, Vol. 55, No. , pp. 390-397 .

초록

Parylene-C which was mainly used for industries such as electronics, machinery and semiconductors has recently been in the spotlight in the medical field due to its properties such as corrosion resistance and biocompatibility. In this study we intend to d

키워드

Parylene-C coating, SUS304, SEM, Contact Angle, coating test.

코너 특정점 기반의 영상분석을 활용한 진공단열재 결함 검출

김범수a, 양정현a, 김연원b*

a경상국립대학교 기계시스템공학과 , b목포해양대학교 해양메카트로닉스공학부

KISE Journal of Korean Institute of Surface Engineering, Vol. 55, No. , pp. 398-402.

초록

Vacuum Insulation Panel (VIP) is an high energy efficient insulation system that facilitate slim but high insulation performance, based on based on a porous core material evacuated and encapsulated in a multi-barrier envelope. Although VIP has been on the

키워드

Vacuum insulation panel, Harris corner detection, Image processing, crumpled paper, aging test.

유역분할 알고리즘을 이용한 결정립 크기 측정

김범수a, 윤상두a, 권재성a, 최성웅a, 노정필b, 양정현a*

a경상국립대학교 기계시스템공학과 , b경상국립대학교 에너지기계공학과

KISE Journal of Korean Institute of Surface Engineering, Vol. 55, No. , pp. 403-407.

초록

Grain size of material is important factor in evaluating mechanical properties. Methods for grain size determination are described in ASTM grain size standards. However, conventional method require pre-treatment of the surface to clarify grain boundaries.

키워드

Grain size, Scanning electron microscope, Watershed algorithm.

전자부품 커넥터의 접속 신뢰성 향상을 위한 Au-Sn 합금 도금층 연구

최종환, 손인준*

경북대학교 신소재공학부 금속신소재공학전공

KISE Journal of Korean Institute of Surface Engineering, Vol. 55, No. , pp. 408-416 .

초록

In this study, the effect of Au-Sn alloy coating on reliability of electrical contacts was investigated via comparison with Au-Co alloy coating. The results show that Au-Sn alloy exhibited lower contact resistance and higher solder spreadability than thos

키워드

Au-Sn alloy plating, Au alloy plating, Contact resistance, Connection reliability, Thermal aging.

양극산화 모드 전환을 통한 기능성 알루미늄 표면 연구

박영주, 정찬영 *

동의대학교 신소재공학과

KISE Journal of Korean Institute of Surface Engineering, Vol. 55, No. , pp. 417-424 .

초록

키워드

표면 처리를 통한 친환경 방오 기술 및 실해역 평가 연구

한덕현a, 고혁준b, 정항철a,*

a고등기술연구원 신소재공정센터, b고등기술연구원 그린에너지인텔리전스센터

KISE Journal of Korean Institute of Surface Engineering, Vol. 55, No. , pp. 425-432 .

초록

Antifouling paints that inhibit the attachment and contamination of marine organisms mainly use TBT compounds, but because of their toxic components, they cause ecosystem disturbance and environmental destruction problems, so It is necessary to research e

키워드

Anti-foulin, Surface treatment, Silane coating, Marine organism, Sea trial verification.

발전소 절탄기 튜브의 배기가스 온도와 황산 농도에 따른 노점 및 내식성 분석

최재훈a, 이승준b,*

a군산대학교, 전라북도 군산시 대학로 558 b군산대학교 해양과학대학 마린엔지니어링전공, 전라북도 군산시 대학로 558

KISE Journal of Korean Institute of Surface Engineering, Vol. 55, No. , pp. 433-440.

초록

Environmental pollution caused by power plant exhaust gas is highlighted and eco-friendly regulations are being strengthened. However, due to the abundant reserves and low prices of coal, still the most used for power generation in the world. Therefore, f

키워드

Dew point, Corrosion rate, Exhaust gas temperature, Sulfuric acid concentration.

화학기상증착 코팅로의 용량에 따른 탄소 코팅 SiOx의 물리적 특성변화 분석

맹석주a,†, 곽우진a,†, 박헌수a,b, 김용태a,c,*, 최진섭a,c,*

a인하대학교 화학·화학공학 융합학과, b대주전자재료 c지속가능한 에너지 부품소재 핵심연구지원센터

KISE Journal of Korean Institute of Surface Engineering, Vol. 55, No. , pp. 441-447.

초록

Silicon-based materials are one of the most promising anode active materials in lithium-ion battery. A carbon layer decorated on the surface of silicon particles efficiently suppresses the large volume expansion of silicon and improves electrical conducti

키워드

Silicon suboxide, Carbon coating, Chemical vapor deposition (CVD).

용융Al-Si도금 강재에 형성한 Cr 막의 고온 환경 중 내식특성

강민주a, 이승효b, 이명훈a,c*

a한국해양대학교 기관공학과, b한국해양대학교 해양신소재융합공학과, c한국해양대학교 해양인공지능융합전공

KISE Journal of Korean Institute of Surface Engineering, Vol. 55, No. , pp. 448-459.

초록

Generally, steel is the most commonly used in the industry because of good strength, processability and cost-effectiveness. Steel can be surface-treated such as coating or used as an alloy by adding elements such as Cr, Ni, Zr, and Al to increase corrosio

키워드

Hot dip Al-Si plated steel, Cr film, High temperature condition, Corrosion resistance, Fe based intermetallic compounds.

논시안 금도금층의 조직과 경도에 미치는 Tl+ 과 Pd2+ 이온첨가의 영향

허원영, 손인준*

경북대학교 신소재공학부 금속신소재공학전공

KISE Journal of Korean Institute of Surface Engineering, Vol. 55, No. , pp. 460-468.

초록

Due to its high electrical conductivity, low contact resistance, good weldability and high corrosion resi-stance, gold is widely used in electronic components such as connectors and printed circuit boards (PCB). Gold ion salts currently used in gold plati

키워드

Gold, Electroplating, Gold sulfite, Thallium, Palladium.

  • Vol. 54 No.1
  • Vol. 54 No.2
  • Vol. 54 No.3
  • Vol. 54 No.4
  • Vol. 54 No.5
  • Vol. 54 No.6

Vol. 54 No.1

알칼리 수용액에서 산소환원반응에 대한 다공성 AuCu 덴드라이트 표면의 전기화학적 특성 평가

김민영;이종원;조수연;박다정;정현민;이주열;이규환;

한국재료연구원 표면기술본부 전기화학연구실;한국재료연구원 표면기술본부 전기화학연구실;한국재료연구원 표면기술본부 전기화학연구실;한국재료연구원 표면기술본부 전기화학연구실;한국재료연구원 표면기술본부 전기화학연구실;한국재료연구원 표면기술본부 전기화학연구실;한국재료연구원 표면기술본부 전기화학연구실;

KISE Journal of Korean Institute of Surface Engineering, Vol. 54, No. , pp. 1-11.

초록

Porous dendrite structure AuCu alloy was formed using a hydrogen bubble template (HBT) technique by electroplating to improve the catalytic performance of gold, known as an excellent oxygen reduction reaction (ORR) catalyst in alkaline medium. The rich Au

키워드

oxygen reduction reaction;AuCu;alloy;etching;porous surface;dendrite;

은의 표면 부식 및 변색을 방지하기 위해 설치된 Al 희생양극의 전기화학적 특성에 미치는 황산 농도의 영향

신병현;정원섭;

부산대학교, 재료공학과, 소재기술연구소;부산대학교, 재료공학부;

KISE Journal of Korean Institute of Surface Engineering, Vol. 54, No. , pp. 12-17.

초록

Among the various precious metals, silver is used in various fields because of its low price than other precious metals. However, the surface of silver remains after rain in the atmosphere containing sulfur ions and chlorine ions, causing silver corrosion

키워드

Silver;Al sacrificial anode;surface corrosion;discolor;sulfuric acid;

Manufacture and Surface Structure Characteristics of Mn-Doped (K, Na)NbO<sub>3</sub> Films

Kim, Yeon Jung;Byun, Jaeduk;Hyun, June Won;

College of Engineering, Dankook University;Department of Physics, Dankook University;Department of Physics, Dankook University;

KISE Journal of Korean Institute of Surface Engineering, Vol. 54, No. , pp. 18-24.

초록

KNN is widely used in the electronic industry such as memory devices, sensors, and capacitors due to various structural, electrical, and eco-friendly properties. In this study, Mn-doped KNN was prepared by adopting a sol-gel method with advantages of low

키워드

KNN;Manganese (Mn) ion;Sol-gel;Thin film;

전자빔 증발법 박막 증착을 이용한 양극 산화 알루미늄 템플릿의 나노 포어 가공 연구

이승훈;이민영;김천중;김관오;윤재성;유영은;김정환;

한국기계연구원 나노공정장비연구실;한국기계연구원 나노공정장비연구실;충남대학교 신소재공학과;한국기계연구원 나노공정장비연구실;한국기계연구원 나노공정장비연구실;한국기계연구원 나노공정장비연구실;한밭대학교 신소재공학과;

KISE Journal of Korean Institute of Surface Engineering, Vol. 54, No. , pp. 25-29.

초록

The fabrication of nanopore membrane by deposition of Al2O3 film using electron-beam evaporation, which is fast, cost-effective, and negligible dependency on substance material, is investigated for potential applications in water purification and sensors.

키워드

Nanopore membrane;Anodic aluminum oxide(AAO);Thin-film deposition;Electron-beam evaporation;

알루미늄 합금의 연속식 양극산화법으로 형성시킨 이중 산화막층의 특성

정나겸;최진섭;

영광YKMC 기술연구소;인하대학교 금속재료공정공학전공;

KISE Journal of Korean Institute of Surface Engineering, Vol. 54, No. , pp. 30-36.

초록

In this study, double-layered anodizing films were formed on Al 5052 and Al 6061 alloys consecutively first in sulfuric acid and then in oxalic acid, and hardness, withstand voltage, surface roughness and acid resistance of the anodizing films were compar

키워드

Aluminum;consecutive two-anodizing process;Oxalic acid;Sulfuric acid anodizing;Hardness;Dielectric breakdown;Acid resistance;

전착법으로 제작한 Ni(OH)<sub>2</sub> 나노 시트의 핵 형성과 성장 거동에 미치는 헥사-메틸렌테트라민(HMT)의 영향

김동연;손인준;최문현;

경북대학교 금속신소재공학전공;경북대학교 금속신소재공학전공;동강테크;

KISE Journal of Korean Institute of Surface Engineering, Vol. 54, No. , pp. 37-42.

초록

Electrodeposition is a synthetic method that allows fine control of the nucleation and growth factors of metals and is a suitable method for studying the nucleation and growth of Ni(OH)2. Hexa-methylenetetramine (HMT) helps to form Ni(OH)2 nanosheets by i

키워드

Electrodeposition;Hexa-methylenetetramine (HMT);<TEX>$Ni(OH)_2$</TEX> nanosheet;Scharifker-Hills nucleation theory model;

Vol. 54 No.2

대기 및 Ar-0.2%SO2가스에서 Inconel 740 합금의 고온부식 연구

이동복1,김민정2

1성균관대학교 신소재공학과, 2한국폴리텍대학 신소재응용과

KISE Journal of Korean Institute of Surface Engineering, Vol. 54, No. , pp. 43-52.

초록

The Ni-based superalloy, Inconel 740, was corroded between 800 and 1100oC for up to 100 hr in air and Ar-0.2%SO2 gas in order to study its corrosion behavior in air and sulfur/oxygen environment. It displayed relatively good corrosion resistance in both e

키워드

Alloys, casting, oxidation, SO2-corrosion, Inconel 74

다구찌 강건 설계를 통한 자장 여과 아크 소스로 증착된 사면체 비정질 탄소막의 최적화

곽승윤 a,b , 장영준 b , 류호준 a,b , 김지수 c,d , 김종국 b*

a부산대학교 기계공학부, b한국재료연구원 표면재료연구본부 극한환경코팅 연구실, c경북대학교 정밀기계 공학과, d경북대학교 미래과학기술융합학과

KISE Journal of Korean Institute of Surface Engineering, Vol. 54, No. , pp. 53-61.

초록

The properties of tetrahedral amorphous Carbon (ta-C) film can be determined by multiple parameters and comprehensive effects of those parameters during a deposition process with filtered cathodic vacuum arc (FCVA). In this study, Taguchi method was ado

키워드

Filtered cathodic vacuum arc (FCVA); Taguchi robust design; Tetrahedral amorphous carbon (ta-C);Diamond like carbon (DLC)

대기 노출된 Al2024 알루미늄 합금 산화막에 대한 미세조직 분석

권대엽, 최원준, 반치범

부산대학교 기계공학부

KISE Journal of Korean Institute of Surface Engineering, Vol. 54, No. , pp. 62-70.

초록

Al2024 aluminum alloy specimens were exposed to atmospheric conditions for maximum 24 months and analyzed by electron microscopes to characterize their corrosion behavior and oxide film characteristics. As the exposure time increased from 12 months to 2

키워드

Aluminum alloy, Al2024, Atmospheric corrosion, pitting corrosion, Intergranular corrosion

Ag925의 전기화학적 특성에 미치는 네오디뮴 함량의 영향

신병현 a , 정승진 b , 정원섭 b*

a부산대학교, 재료공학과, 소재기술연구소 b부산대학교, 재료공학부

KISE Journal of Korean Institute of Surface Engineering, Vol. 54, No. , pp. 71-76.

초록

Ag925, silver with added copper, is popular alloy due to its low price. However, it has a difficult to use because of the low corrosion resistance. In various alloys, neodymium (Nd) works as an element to improve corrosion resistance by reacting with in

키워드

Silver, Neodymium, Electrochemical properties, Potentiodynamic polarization curve, Electrochemical impedance spectroscopy

산화그래핀(GO)의 플라스틱(PS) 표면 코팅방법에 대한 연구

박재범a , 이지훈a , 허증수a , 박단비b , 임정옥b*

a경북대학교 융복합시스템공학과, b경북대학교 생명의학연구소

KISE Journal of Korean Institute of Surface Engineering, Vol. 54, No. , pp. 77-83.

초록

In this study, we investigated various coating methods of graphene oxide on the surface of a petri dish made of polystyrene and analyzed the physical and chemical properties of the coated surface. For coating, spinning, spraying and pressing methods w

키워드

Graphene oxide, Spin coating, Spray coating, Hand-press coating

영상분할법을 이용한 강판상의 부식 감지

김범수a, 김연원b, 양정현a*

a경상국립대학교 기계시스템공학부, b목포해양대학교 메카트로닉스공학과

KISE Journal of Korean Institute of Surface Engineering, Vol. 54, No. , pp. 84-89.

초록

The visual inspection method is widely used for corrosion damage analysis of steel plate due to the cost-efficient, fast and reasonably accurate results. However, visual inspection of corrosion deteriorated degree has a problem that the reliability of res

키워드

Image Segmentation, Grabcut, HSV color

테플론 코팅과 오일 담지를 이용한 알루미늄 양극산화피막의 응축 열전달 향상

강민주 1 , 이종훈 1 , 차수진 1 , 신예지 1 , 김동현 2 , 김경자 2 , 이정훈 1*

1부경대학교 금속공학과 2한국세라믹기술원기업지원본부

KISE Journal of Korean Institute of Surface Engineering, Vol. 54, No. , pp. 90-95.

초록

Surface modification technique enabling the control of condensation provides various benefit in various engineering systems, such as heat transfer, desalination, power plants, and so on. In this study, lubricant oil-impregnation into Teflon-coated nanop

키워드

Condensation Heat Transfer; Anodic Aluminum Oxide; Hydrophobic; Nanoporous Structure

석영 기판 위에 증착된 NaNbO3:Eu 3+ 형광체 박막의 특성에 열처리 온도가 미치는 영향

조신호 *

신라대학교 신소재공학과

KISE Journal of Korean Institute of Surface Engineering, Vol. 54, No. , pp. 96-101.

초록

NaNbO3:Eu 3+ phosphor thin films were grown on quartz substrates by radio-frequency magnetron sputtering at a growth temperature of 100 oC, with subsequent annealing at temperatures of 800, 900, and 1000 oC. The effects of annealing temperature on th

키워드

Thin Film, Photoluminescence, Annealing

Vol. 54 No.3

슈퍼 듀플렉스 스테인리스강(UNS S32506) 레이저 조관용접 튜브의 용접 후 열처리에 따른 부식거동

조동민1 · 박진성1 · 홍승갑2 · 황중기3 · 김성진1,*

1순천대학교 신소재공학과, 2포스코 기술연구원, 3동명대학교 기계공학부

KISE Journal of Korean Institute of Surface Engineering, Vol. 54, No. , pp. 102-111.

초록

The corrosion behaviors of laser-welded super duplex stainless steel tubes with post-weld heat treatment(PWHT) conditions(950, 1000, 1050, 1100 ℃ for 5 and 30 min) were evaluated by electrochemical potentiodynamic polarization and critical pitting tempera

키워드

Super duplex stainless steel, UNS S32506, Corrosion, PWHT, Laser welding

BaWO4:Dy3+,Eu3+ 백색광 형광체의 발광 특성과 에너지 전달 효율

조신호

신라대학교 신소재공학과

KISE Journal of Korean Institute of Surface Engineering, Vol. 54, No. , pp. 112-118.

초록

Dy3+- and Eu3+-codoped BaWO4 phosphors for white light-emitting diode were synthesized with different activator ions via a solid-state reaction process. The structural, morphological, and optical properties of the BaWO4:Dy3+,Eu3+ phosphors were investigat

키워드

Phosphor, Photoluminescence, Solid-state reaction

Ag 중간층이 SnO2 박막의 광학적, 전기적 특성에 미치는 영향

장진규a, 김현진a, 최재욱a, 이연학a, 허성보b, 김유성c, 공영민a*, 김대일a*

a울산대학교 첨단소재공학부 b한국생산기술연구원 동남본부 에너지소재부품연구그룹 c한국생산기술연구원 울산본부 첨단정형공정그룹

KISE Journal of Korean Institute of Surface Engineering, Vol. 54, No. , pp. 119-123.

초록

SnO2 single layer and SnO2/Ag/SnO2 (SAS) tri-layered films were deposited on the glass substrate by RF and DC magnetron sputtering at room temperature and then the effect of Ag interlayer on the opto-electrical performance of the films were considered. As

키워드

SnO2, Ag, Sheet resistance, XRD, AFM.

코발트와 니켈이 스퍼터링된 구리 포일에서 어닐링 시간에 따른 그래핀 성장

오예찬, 이우진, 김상호*

한국기술교육대학교 에너지신소재화학공학부

KISE Journal of Korean Institute of Surface Engineering, Vol. 54, No. , pp. 124-132.

초록

Graphene which grown on the cobalt or nickel sputtered copper foil depending on the annealing time was studied. Graphene on the copper foil grown by chemical vapor deposition was compared to those on cobalt or nickel sputtered copper foil by using a RF (

키워드

Graphene, Cobalt, Nickel, Microstructure, Raman spectroscopy, Annealing time

Effect of Negative Substrate Bias Voltage on the Microstructure and Mechanical Properties of Nanostructured Ti–Al–N–O Coatings Prepared by Cathodic Arc Evaporation

Sungbo Heo, Wang Ryeol Kim and In-Wook Park*

Korea Institute of Industrial Technology (KITECH), Yangsan 50623, Republic of Korea

KISE Journal of Korean Institute of Surface Engineering, Vol. 54, No. , pp. 133-138.

초록

Ternary Ti–X–N coatings, where X = Al, Si, Cr, O, etc., have been widely used for machining tools and cutting tools such as inserts, end-mills, and etc. Ti–Al–N–O coatings were deposited onto silicon wafer and WC-Co substrates by a cathodic arc evaporati

키워드

Ti–Al–N–O Coatings, Substrate bias voltage, Cathodic arc evaporation, Microstructure

Influence of Deposition Temperature on the Film Growth Behavior and Mechanical Properties of Chromium Aluminum Nitride Coatings Prepared by Cathodic Arc Evaporation Technique

Sungbo Heo and Wang Ryeol Kim*

Korea Institute of Industrial Technology (KITECH), Yangsan 50623, Republic of Korea

KISE Journal of Korean Institute of Surface Engineering, Vol. 54, No. , pp. 139-143.

초록

Cr–Al–N coatings were deposited onto WC-Co substrates using a cathodic arc evaporation (CAE) system. CAE technique is recognized to be a very useful process for hard coatings because it has many advantages such as high packing density and good adhesion to

키워드

Cr–Al–N Coatings, Deposition temperature, Cathodic arc evaporation

Ag 또는 CuO를 코팅한 평판형 ZnO 분말의 합성 및 항균성 평가

홍다희a, 곽지유a, 전덕성a, 조동현b, 이건섭b, 이정환b, 이희철a,*

a한국산업기술대학교 신소재공학과, b(주)덕진 에너지사업부 연구소

KISE Journal of Korean Institute of Surface Engineering, Vol. 54, No. , pp. 144-151.

초록

In the present work, planar-type ZnO powder of [0001] plane with a high aspect ratio range of 20:1 to 50:1 was synthesized. Ag or CuO could be coated on the planar-type ZnO powder by wet methods such as centrifugation or ball milling. During the coating,

키워드

Planar-type ZnO, Wet coating, Centrifugation, Ball milling, Antibacterial

전착법에 의해 제작된 Ni(OH)2 나노 시트의 표면 관찰 및 분석

김동연a, 손인준a,*, 최문현b

a경북대학교 금속신소재공학전공, b동강테크

KISE Journal of Korean Institute of Surface Engineering, Vol. 54, No. , pp. 152-157.

초록

The pseudocapacitor has a high energy density characteristic because it accumulates charges through a paradic redox reaction. However, due to its strong insulation properties, metal hydroxides should be designed as structural systems optimized for charge

키워드

Electrodeposition, Hexa-methylenetetramine (HMT), Ni(OH)2 nanosheet

선택적 전기화학 3D 프린터 기술 소개 및 PCB 양산공정 적용방식 고찰

김성빈1,*, 유봉영2

1애니캐스팅, 2한양대학교 재료화학공학과

KISE Journal of Korean Institute of Surface Engineering, Vol. 54, No. , pp. 158-163.

초록

Some studies on electrochemical additive manufacturing of metals were summarized in this technical report, and development status of selective electrochemical 3D printing technology was introduced. In order to apply it to the PCB mass production process,

키워드

Copper, 3D printing, electroplating package

Vol. 54 No.4

탄소나노튜브/흑연펠트 전극의 산소작용기를 활용한 바나듐 레독스 흐름 전지의 수소발생 억제 효과

김민성1, 고민성1,2*

1부경대학교 마린융합디자인공학과, 2부경대학교 금속공학과

KISE Journal of Korean Institute of Surface Engineering, Vol. 54, No. , pp. 164-170.

초록

Vanadium redox flow batteries (VRFB) have emerged as large-scale energy storage systems (ESS) due to their advantages such as low cross-contamination, long life, and flexible design. However, Hydrogen evolution reaction (HER) in the negative half-cell ca

키워드

Vanadium redox flow battery, Hydrogen evolution reaction, Carbon nanotube, Oxygen functional group

Surface hardness measurement of NiP-plated AA7050

Sungmo Moon1,2,*, Juseok Kim1,3

1Surface Technology Division, Korea Institute of Materials Science, Gyeongnam 51508, Republic of Korea 2Advanced Materials Engineering, Korea University of Science and Technology, Daejeon 34113, Republic of Korea 3Department of Materials Science and Eng

KISE Journal of Korean Institute of Surface Engineering, Vol. 54, No. , pp. 171-177.

초록

This paper is concerned with the surface hardness measurement of NiP-coated AA7050 using different loads from 10 to 100 g. The surface hardness was observed to increase from 180 to 600 Hv with increasing NiP layer thickness, depending on the load applied

키워드

Surface hardness, NiP, AA7050

Dielectric Properties of BaTiO3 Substituted with Donor Dopants of Nb5+ and Ta5+

Yeon Jung Kim*

College of Engineering, Dankook University, Yongin 16890, Korea

KISE Journal of Korean Institute of Surface Engineering, Vol. 54, No. , pp. 178-183.

초록

The temperature and frequency dependence of the dielectric constant of the BaTiO3 substituted with two types of donor dopants, Nb5+ and Ta5+, respectively, were compared and analyzed. Dielectric specimens of four specific compositions, Ba0.95Nb0.05TiO3, B

키워드

BaTiO3, Dielectric properties, Modified Curie-Weiss law

AZ91 마그네슘 합금의 PEO 피막 형성거동에 미치는 HF전처리의 영향

권두영1,2,, 송풍근2 , 문성모1,3*

1한국재료연구소 표면재료연구본부 2부산대학교 재료공학부 3과학기술연합대학원대학교 신소재공학과

KISE Journal of Korean Institute of Surface Engineering, Vol. 54, No. , pp. 184-193.

초록

This study demonstrates formation behavior and morphological changes of PEO (Plasma Electrolytic Oxidation) films on AZ91 Mg alloy as a function of pre-treatment time in 1 M HF solution at 25 ± 1 ℃. The electrochemical behavior and morphological changes

키워드

AZ91 Mg alloy, Plasma electrolytic oxidation, Pre-treatmen

다중벽 탄소나노튜브를 이용한 철근 부식 검출 센서 제작 연구

박수빈a, 김성연a, 이수정a, 최문정a, 홍영준a, 권성준b, 유봉영a, *, 윤상화a, *

a한양대학교 재료화학공학과, b한남대학교 토목환경공학과

KISE Journal of Korean Institute of Surface Engineering, Vol. 54, No. , pp. 194-199.

초록

In this study, rebar corrosion detection sensor was fabricated using multi-walled carbon nanotubes (MWCNTs). MWCNTs were pre-treated in the acid electrolytes to attach the carboxylic acid to the surface of MWCNTs. The fabricated sensor was attached on th

키워드

Multiwall carobon nanotube, Corrosion, Corrosion detection sensor

Lateral growth of PEO films on Al7050 alloy in 0.1 M NaAlO2

Sungmo Moon1,2,*, Gi Yeob Kim3

1Surface Materials Division, Korea Institute of Materials Science, Gyeongnam 51508, Republic of Korea 2Advanced Materials Engineering, Korea University of Science and Technology, Daejeon 34113, Republic of Korea 3 Dept. of applied advanced materials, Ch

KISE Journal of Korean Institute of Surface Engineering, Vol. 54, No. , pp. 200-208.

초록

This paper investigated generation behavior of micro-arcs and growth behavior of PEO films on the AA7050 disc specimen in 0.1 M NaAlO2 solution under the application of 1200 Hz anodic pulse current. Morphologies, thickness and surface roughness of PEO fil

키워드

Plasma electrolytic oxidation, Lateral growth, Anodic oxide film, AA7050

전기 응고법을 이용한 커피박의 전처리 및 기능성 필터 특성 연구

박수빈a, 한하늘a, 박하늘a, 임승현a, 유봉영a,*, 윤상화a,*

a한양대학교 재료화학공학과

KISE Journal of Korean Institute of Surface Engineering, Vol. 54, No. , pp. 209-214.

초록

As coffee consumption per person increases annually to 323 cups in 2018, treating the spent coffee ground has arisen because spent coffee ground results in soil and air pollution. The demands of air purification filters are increasing more and more becau

키워드

Spent coffee ground, Electrocoagulation, Filter

Vol. 54 No.5

FE-SEM Image Analysis of Junction Interface of Cu Direct Bonding for Semiconductor 3D Chip Stacking

Jaeduk Byun, June Won Hyun*

Department of Physics, Dankook University, Dandae-ro, Dongnam-gu, Cheonan-si, Chungnam, 31116, Korea

KISE Journal of Korean Institute of Surface Engineering, Vol. 54, No. , pp. 207-212.

초록

The mechanical and electrical characteristics can be improved in 3D stacked IC technology which can accomplish the ultra-high integration by stacking more semiconductor chips within the limited package area through the Cu direct bonding method minimizin

키워드

Semiconductors, 3D chip stacking , Cu direct bonding, Interface

다양한 형태의 AAO membrane 제조 및 리튬이온 전지의 분리막 응용 연구

김문수†, 임경민†, 하재윤, 김용태*, 최진섭*

인하대학교 화학공학과

KISE Journal of Korean Institute of Surface Engineering, Vol. 54, No. , pp. 213-221.

초록

In order to improve the energy density and safety of Li-ion batteries, the development of a separator with high thermal stability and electrolyte wettability is an important desire. Thus, the ceramic separator to replace the polymer type is one of the mo

키워드

Anodization; Anodic aluminium oxide; Ceramic; Separator; Li-ion battery

소수성 처리된 나노다공성 알루미늄 양극산화피막의 제빙

신예지 1, 김진휘 1, 신동민 1, 문형석 2, 이정훈 1*

1 부경대학교 금속공학과, 2 한국생산기술연구원

KISE Journal of Korean Institute of Surface Engineering, Vol. 54, No. , pp. 222-229.

초록

Icing causes various serious problems, where water vapor or water droplets adhere at cold conditions. Therefore, understanding of ice adhesion on solid surface and technology to reduce de-icing force are essential for surface finishing of metallic materi

키워드

De-Icing; Hydrophobic; Anodic Oxidation; Wettability

초고경도 Ti–Al–Si–N 나노복합체 코팅막의 미세구조 및 트라이볼로지 거동에 관한 연구

허성보, 김왕렬*

한국생산기술연구원 첨단하이브리드생산기술센터

KISE Journal of Korean Institute of Surface Engineering, Vol. 54, No. , pp. 230-237.

초록

In this study, the influence of silicon contents on the microstructure, mechanical and tribological properties of Ti–Al–Si–N coatings were systematically investigated for application of cutting tools. The composition of the Ti–Al–Si–N coatings were contr

키워드

Ti–Al–Si–N, Nanocomposite, Superhard, Tribological behavior, Arc ion plating.

PEO 처리시 Ca-GP첨가에 따른 AZ31합금의 내식성 및 표면특성에 관한 연구

이준수a, 박제신a,b,*, 박일송a,b,*

a전북대학교 금속공학과, b전북대학교 신소재공학부 및 신소재개발연구센터

KISE Journal of Korean Institute of Surface Engineering, Vol. 54, No. , pp. 238-247.

초록

PEO (plasma electrolytic oxidation) was applied to modify the surface of AZ31 magnesium alloy in this study. The mixed solution of sodium hydroxide (NaOH) and sodium silicate (Na2SiO3) was used as the electrolyte, and 0 – 0.05 g/L of Ca-GP (Glycerol Phosp

키워드

Magnesium alloy, Corrosion resistance, Plasma electrolytic oxidation(PEO)

화력발전용 슈퍼 듀플렉스 스테인리스 강 조관재의 용접 후 열처리 조건이 국부부식 저항성에 미치는 영향

이준호a, 박진성a, 조동민a, 홍승갑b, 김성진a,*

a순천대학교 신소재공학과, b포스코 기술연구원

KISE Journal of Korean Institute of Surface Engineering, Vol. 54, No. , pp. 248-259.

초록

This study examined the influence of post weld heat treatment (PWHT) conditions on corrosion behaviors of laser-welded super duplex stainless steel tube. Due to the high cooling rate of laser welding, the phase fraction of ferrite and austenite in the wel

키워드

Super duplex stainless steel, Corrosion, Cr2N, Sigma phase, Post weld heat treatment

Synthesis and Characterization of Zinc Oxide Nanorods for Nitrogen Dioxide Gas Detection

Jong-Hyun Park, Hyojin Kim*

Department of Materials Science and Engineering, Chungnam National University, Daejeon 34134, Republic of Korea

KISE Journal of Korean Institute of Surface Engineering, Vol. 54, No. , pp. 260-266.

초록

Synthesizing low-dimensional structures of oxide semiconductors is a promising approach to fabricate highly efficient gas sensors by means of possible enhancement in surface-to-volume ratios of their sensing materials. In this work, vertically aligned zi

키워드

Zinc oxide, Oxide semiconductor, nanorod, NO2 gas sensor, Hydrothermal synthesis

AISI4115 기계구조용 합금강의 질화 가스분위기에 따른 화합물층의 형성 및 내마모특성

김태환1,3, 손석원1,3, 조균택2, 이기안3, 이원범1*

1한국생산기술연구원 뿌리기술연구소 친환경표면처리연구부문 2한국생산기술연구원 서남본부 동력소재부품연구그룹 3인하대학교 신소재공학과

KISE Journal of Korean Institute of Surface Engineering, Vol. 54, No. , pp. 267-277.

초록

Nitriding layers developed during gaseous nitriding of AISI4115 steels for the application of steel bushing part were investigated. The compound layer thickness of about 10 ㎛, 0.3 mm of case depth under the same conditions, and conventional nitriding, ni

키워드

AISI4115, Wear properties, Gaseous nitriding, Surface hardening

k-means 클러스터링을 이용한 강판의 부식 이미지 모니터링

김범수a, 권재성a, 최성웅a, 노정필b, 이경황c, 양정현a*

a경상국립대학교 기계시스템공학과, b경상국립대학교 에너지기계공학과, c포스코 철강솔루션연구소

KISE Journal of Korean Institute of Surface Engineering, Vol. 54, No. , pp. 278-284.

초록

Corrosion of steel plate is common phenomenon which results in the gradual destruction caused by a wide variety of environments. Corrosion monitoring is the tracking of the degradation progress for a long period of time. Corrosion on steel plate appears a

키워드

Corrosion, GrabCut Segmentation, Gaussian Mixture Model, HSV color space, k-means clustering

고온 액상 성형용 금형 수명 향상을 위한 TiAlCrSiN 코팅의 특성

여기호a, 박은수b, 이한찬b,*

a한양대학교 금속재료공학과, b(주)이엠엘 R&D 센터

KISE Journal of Korean Institute of Surface Engineering, Vol. 54, No. , pp. 285-293.

초록

High-entropy TiAlCrSiN nano-composite coating was designed to improve mold life for high temperature liquid molding. Alloy design, powder fabrication and single alloying target fabrication for the high-entropy nano-composite coating were carried out. Usin

키워드

TiAlCrSiN nano-composite coating, HEA, Single alloying target, High Temperature Liquid Casting Mold

Vol. 54 No.6

스테인리스 강의 부식 측정방법의 이용과 전망

최용선, 이재원, 박은옥, 이기영*

인하대학교 화학 화학공학융합학과

KISE Journal of Korean Institute of Surface Engineering, Vol. 54, No. , pp. 294-301.

초록

As the number of cases of performance degradation owing to corrosion of plant during processing in industries increases, the cost of maintaining industrial factory is increasing year by the year. Most of the materials of the facilities are consist of stai

키워드

Corrosion, Stainless steel (SS), Corrosion rate, Austenite stainless steel

전자빔 표면 조사에 따른 SnO2/Ag/SnO2 박막의 특성 연구

장진규a,†, 김현진a, 최재욱a, 이연학a, 공영민a, 허성보b, 김유성c,†, 김대일a,*

a 울산대학교 첨단소재공학부 b 한국생산기술연구원 동남본부 첨단하이브리드생산기술센터 c 한국생산기술연구원 울산본부 첨단정형공정그룹

KISE Journal of Korean Institute of Surface Engineering, Vol. 54, No. , pp. 302-306.

초록

SnO2 30/Ag 15/SnO2 30 nm(SAS) tri-layer films were deposited on the glass substrates with RF and DC magnetron sputtering and then electron beam is irradiated on the surface to investigate the effect of electron bombardment on the opto-electrical perform

키워드

SnO2, Ag, Electron irradiation, X-ray diffraction, Figure of merit

Improved Adhesion of DLC Films by using a Nitriding Layer on AISI H13 Substrate

Min-Seok Park1,2, Dae-Young Kim1,2, Chang-Seouk Shin3, Wang Ryeol Kim4,*

1Ness Co, Busan, Republic of Korea 2Mechanical Engineering, Pukyong National University, Busan, Republic of Korea 3School of Mechanical Engineering, Pusan National University, Busan, Republic of Korea 4Dongnam Division, Korea Institute of Industrial Tech

KISE Journal of Korean Institute of Surface Engineering, Vol. 54, No. , pp. 307-314.

초록

Diamond-like carbon (DLC) is difficult to achieve sufficient adhesion because of weak bonding between DLC film and the substrate. The purpose of this study is to improve the adhesion between substrate and DLC film. DLC film was deposited on AISI H13 usin

키워드

DLC Coating, Plasma nitriding, Adhesion, Active screen

Effect of Ultrasonic Process of Electroless Ni-P-Al2O3 Composite Coatings

Jin-Doo Yoon1, Bon-Heun Koo1, Hwan-Il Hwang2, Sun-Kyo Seo3 and Jong-Kyu Park3*

1 School of Materials Science & Engineering, Changwon National University Changwon, 20 Changwondaehak-ro, Uichang-gu, Changwon-si, Gyeongsangnam-do, 51140, Korea 2Dept. of Smart Surface Procession, Namincheon Campus of KOREA POLYTECHNIC, Yeomjeon-ro

KISE Journal of Korean Institute of Surface Engineering, Vol. 54, No. , pp. 315-323.

초록

In general, surface treatments of electroless Ni-P coating are extensively applied in the industry due to their excellent properties for considerable wear resistance, hardness, corrosion resistance. This study aims to determine the effect of ultrasonic c

키워드

Al2O3, Electroless deposition, Ni-P, Composite coating, Corrosion

Triboelectric Nanogenerator (TENG)를 위한 Rutile TiO2 박막 성능 및 특성 평가

문지현a, ∇, 김한재a, ∇, 김효배a, *, 안지훈a, *

a한양대학교 ERICA 재료화학공학과

KISE Journal of Korean Institute of Surface Engineering, Vol. 54, No. , pp. 324-330.

초록

As energy harvesting technology becomes important in relation to environmental issues, piezoelectric materials that convert mechanical energy into electrical energy are attracting attention. However, PZT, a representative material for piezoelectricity, is

키워드

TiO2, PTFE, Triboelectric nanogenerator, Sol-gel process, Energy harvesting

환경차폐코팅용 이터븀 실리케이트의 제조와 물성평가

최재형a, 김성원a,*

a한국세라믹기술원 이천분원 엔지니어링세라믹센터

KISE Journal of Korean Institute of Surface Engineering, Vol. 54, No. , pp. 331-339.

초록

Environmental barrier coatings(EBCs) are applied to the SiC/SiC ceramic matrix composites(CMCs) in order to protect CMCs from being corroded with water vapor by combustion gas in gas turbine engines. Ytterbium silicates, such as ytterbium monosilicate an

키워드

Environmental barrier coatings(EBCs), Ytterbium silicate, Phase formation, Thermo-physical property

대기압 마이크로웨이브 플라즈마를 이용한 다양한 크기의 ZnO tetrapod 합성 및 광촉매 특성 평가

허성규, 정구환*

강원대학교 대학원 신소재공학과

KISE Journal of Korean Institute of Surface Engineering, Vol. 54, No. , pp. 340-347.

초록

Among various metal oxide semiconductors, ZnO has an excellent electrical, optical properties with a wide bandgap of 3.3 eV. It can be applied as a photocatalytic material due to its high absorption rate along with physical and chemical stability to UV

키워드

Atmospheric microwave plasma, ZnO tetrapod, Size-controlled synthesis, Methylene blue solution, Photocatalytic performance

수평형 유도결합 플라즈마를 이용한 그래핀의 질소 도핑에 대한 연구

조성일, 정구환*

강원대학교 대학원 신소재공학과

KISE Journal of Korean Institute of Surface Engineering, Vol. 54, No. , pp. 348-356.

초록

In this study, optical diagnosis of plasma was performed for nitrogen doping in graphene using a horizontal inductively coupled plasma (ICP) system. Graphene was prepared by mechanical exfoliation and the ICP system using nitrogen gas was ignited for plas

키워드

Graphene, Defect-suppressed doping, Inductively coupled plasma, Optical emission spectroscopy, Electron excitation temperature

PECVD를 이용한 DLC 박막의 표면 마모 특성 향상을 위한 플루오린 첨가의 영향

박현준ab, 김준형c, 문경일a*

a한국생산기술연구원, b인하대학교 신소재공학과, c㈜풍산

KISE Journal of Korean Institute of Surface Engineering, Vol. 54, No. , pp. 357-364.

초록

In this study, DLC films deposited by PECVD were evaluated to the properties of super-hydrophobic by CF4 treatment. The structure of DLC films were confirmed by Raman Spectra whether or not mixed sp3 (like diamond) peak and sp2 (like graphite) peak. And t

키워드

PECVD, F-DLC, Super-hydrophobic, CF4

세정공정에 따른 Y2O3 코팅부품의 내플라즈마성 영향

김민중a,b, 신재수c, 윤주영b,d,*

a한양대학교 전기공학과, b한국표준과학연구원 진공소재측정팀 c대전대학교 에너지신소재공학과, d과학기술연합대학원대학교 NT-IT 융합

KISE Journal of Korean Institute of Surface Engineering, Vol. 54, No. , pp. 365-370.

초록

In this research, we proceeded with research on plasma resistance of the cleaning process of APS(Atmospheric Plasma Spray)-Y2O3 coated parts used for semiconductor and display plasma process equipment. CF4, O2, and Ar mixed gas were used for the plasma e

키워드

Plasma corrosion resistance, Spray coating, Cleaning, Contamination particle

탈지 정도에 대한 방청유-금속 계면의 영향성 평가

최원영1, †, 김문수1, †, 유현석2, 송연균2, 정용균2, 최진섭1,*

1: 인하대학교 화학공학과; 2: 포스코 철강솔루션연구소

KISE Journal of Korean Institute of Surface Engineering, Vol. 54, No. , pp. 371-379.

초록

The use of anti-corrosive oil (AC) is inevitable for production of industrial steels to prevent corrosion. The AC is degreased before application of steels, which crucially effects on final products, such as automobile, electricity etc. However, qualitati

키워드

Steel, Oil, Anticorrosive oil, Degrease, Electrochemical impedance spectroscopy, EIS

  • Vol. 53 No.1
  • Vol. 53 No.2
  • Vol. 53 No.3
  • Vol. 53 No.4
  • Vol. 53 No.5
  • Vol. 53 No.6

Vol. 53 No.1

Sulfamate-Chloride Bath에서 Co 농도의 변화에 따른 Ni-Co 필름의 특성 변화

윤필근;박덕용;

한밭대학교 신소재공학과;한밭대학교 신소재공학과;

KISE Journal of Korean Institute of Surface Engineering, Vol. 53, No. , pp. 1-8.

초록

Sulfamate-chloride baths were fabricated to study the properties of the electrodeposited Ni and NiCo thin films. The dependences of current efficiency, deposit composition of Ni and Co, residual stress, surface morphology and microstructure of electrodepo

키워드

Electrodeposition;Ni thin film;NiCo thin film;sulfamate-chloride bath;thin film properties;

RF 마그네트론 스퍼터링법으로 성장시킨 CuS 박막의 구조적 및 광학적 특성

신동혁;이상운;손창식;손영국;황동현;

부산대학교 재료공학과;부산대학교 재료공학과;신라대학교 신소재공학부;부산대학교 재료공학과;신라대학교 신소재공학부;

KISE Journal of Korean Institute of Surface Engineering, Vol. 53, No. , pp. 9-14.

초록

CuS (copper sulfide) thin films having the same thickness of 100nm were deposited on the glass substrates using by radio frequency (RF) magnetron sputtering method. RF powers were applied as a process variable for the growth of CuS thin films. The structu

키워드

Covellite;CuS thin film;RF magnetron sputtering;deposition power;solar cell;

Al6061 합금의 정전압 아노다이징 피막의 형성거동 및 버닝에 대한 연구

문상혁;문성모;송풍근;

신원금속(주);재료연구소 표면기술연구본부;부산대학교 재료공학과;

KISE Journal of Korean Institute of Surface Engineering, Vol. 53, No. , pp. 15-21.

초록

In this study, growth and burning behavior of 6061 aluminum alloy was studied under constant anodic voltages at various temperatures and magnetic stirring rates in 20% sulfuric acid solution by analysing I-t curves, measuring thickness and hardness of alu

키워드

Anodizing;Anodic Oxide Film;Burning;Al6061;Sulfuric Acid;

고압 균질기를 통해 합성된 이산화망간 나노입자에 의한 일산화탄소의 촉매적 산화

지성화;김효진;

충남대학교 신소재공학과;충남대학교 신소재공학과;

KISE Journal of Korean Institute of Surface Engineering, Vol. 53, No. , pp. 22-28.

초록

In this study, manganese dioxide (MnO2) nanoparticles were synthesized from KMnO4 and MnCl2·4H2O without any dispersing agents and oxidant via ultra-high pressure homogenization process. We investigated v

키워드

Manganese dioxide;Nanoparticle;CO oxidation;Catalyst;High pressure homogenizer;

시편의 준비 방법 및 접촉저항이 알루미늄 합금의 아노다이징 피막 형성에 미치는 영향

문성모;

재료연구소 표면기술연구본부;

KISE Journal of Korean Institute of Surface Engineering, Vol. 53, No. , pp. 29-35.

초록

In this study, five different specimen preparation methods were introduced and their advantages and disadvantages were presented. One of them, an epoxy mounting method has advantages of constant exposure area, ease of surface preparation without touching

키워드

Anodizing;specimen preparation method;Anodic Oxide Film;Contact resistance;Al alloy;

알루미늄 합금 양극산화피막의 표면경도 측정법

문성모;

재료연구소 표면기술연구본부;

KISE Journal of Korean Institute of Surface Engineering, Vol. 53, No. , pp. 36-42.

초록

In this study, two novel methods to measure the surface hardness of anodic oxide films on aluminum alloys are reported. The first method is to impregnate oil-based ink into pores in the anodic oxide film and then to clean the ink on the surface using etha

키워드

Surface hardness;Anodic oxide film;Anodizing;Al alloy;

Vol. 53 No.2

저온 플라즈마 침질탄화처리된 마르텐사이트계 석출경화형 스테인리스강의 내식성에 미치는 시효 전처리의 영향

이인섭;이천호;

동의대학교 신소재공학과;동의대학교 신소재공학과;

KISE Journal of Korean Institute of Surface Engineering, Vol. 53, No. , pp. 43-52.

초록

Various aging treatments were conducted on AISI 630 martensitic precipitation hardening stainless steel in order to optimize aging condition. Aging treatment was carried out in the vacuum chamber of Ar gas with changing aging temperature from 380℃

키워드

AISI 630 martensitic precipitation hardening stainless steel;${alpha}^{prime}_N$ layer;Corrosion resistance;low temperature plasma nitriding;aging;

알루미늄 7075 합금의 PEO 처리 기술 및 첨가제 영향 분석

진연호;양재교;

고등기술연구원 신소재공정센터;고등기술연구원 신소재공정센터;

KISE Journal of Korean Institute of Surface Engineering, Vol. 53, No. , pp. 53-58.

초록

In this study, we developed plasma electrolytic oxidation (PEO) process for aluminum 7075 alloy to improve the corrosion and mechanical properties. The electrolyte consists of potassium hydroxide and sodium silicate. Additionally, sodium stannate was adde

키워드

Plasma Electrolytic Oxidation(PEO);Aluminium alloys;Oxide film;Tin oxide;Additives;

AZ91 마그네슘 합금의 플라즈마 전해산화 피막 형성 및 물성에 미치는 0.1 M NaOH + 0.05 M NaF 용액 중 Na2SiO3 농도의 영향

권두영;송풍근;문성모;

재료연구소 표면기술연구본부 전기화학 연구실;부산대학교 재료공학부;재료연구소 표면기술연구본부 전기화학 연구실;

KISE Journal of Korean Institute of Surface Engineering, Vol. 53, No. , pp. 59-66.

초록

Effects of Na2SiO3 concentration added into 0.1 M NaOH + 0.05 M NaF solution on the formation behavior and properties of PEO films on AZ91 Mg alloy were investigated under 1200 Hz of alternating current (AC) by voltage-time curves, i

키워드

AZ91 Mg alloy;Plasma electrolytic oxidation;$Na_2SiO_3$ concentration;Burning;

직류 및 유도결합 플라즈마 마그네트론 스퍼터링법으로 제조된 HfN 코팅막의 미세구조 및 기계적 물성연구

장훈;전성용;

목포대학교 신소재공학과;목포대학교 신소재공학과;

KISE Journal of Korean Institute of Surface Engineering, Vol. 53, No. , pp. 67-71.

초록

For deposition technology using plasma, it plays an important role in improving film deposited with high ionization rate through high density plasma. Various deposition methods such as high-power impulse magnetron sputtering and ion-beam sputtering have b

키워드

Inductively coupled plasma;Inductively coupled plasma assisted magnetron sputtering;Hafnium nitride;

하수슬러지-(SO2-O2-H2O-bal. CO2) 혼합 가스 분위기에서 Fe-Cr 강의 고온부식거동 연구

김민정;박주창;유인선;

성균관대학교 신소재공학과;아주대학교 에너지시스템학과;한국폴리텍대학 신소재응용과;

KISE Journal of Korean Institute of Surface Engineering, Vol. 53, No. , pp. 72-79.

초록

Two Fe-Cr steels of T22 steel and STS430 steel were corroded at 650 and 750℃ for 100hr in sewage sludge-(0.3% SO2-6% O2-10% H2O-balance CO2) mixed gas environment. T22 steel corroded faster than STS430, i

키워드

Sewage Sludge;Corrosion;$P_2O_5$;Oxidation;Diffusion;

Surface Hardness Measurement of Anodic Oxide Films on AA2024 based an Ink-Impregnation Method

Moon, Sungmo;Rha, Jong-joo;

Surface Technology Division, Korea Institute of Materials Science;Surface Technology Division, Korea Institute of Materials Science;

KISE Journal of Korean Institute of Surface Engineering, Vol. 53, No. , pp. 80-86.

초록

This paper is concerned with type of imperfections present within the anodic oxide films on AA2024 and surface hardness of the anodic film measured after ink-impregnation. The anodic oxide films were formed for 25 min at 40 mA/㎠ and 15±0.5&#

키워드

Surface hardness;anodic oxide film;AA2024;ink-impregnation method;

Vol. 53 No.3

Fast and Soft Functionalization of Carbon Nanotube with -SO3H, -COOH, -OH Groups for Catalytic Hydrolysis of Cellulose to Glucose

Lusha, Qin;Lee, Sungho;Li, Oi Lun;

School of Materials Science and Engineering, Pusan National University;School of Materials Science and Engineering, Pusan National University;School of Materials Science and Engineering, Pusan National University;

KISE Journal of Korean Institute of Surface Engineering, Vol. 53, No. , pp. 87-94.

초록

Herein, sulfonated carbon nanotubes (CNT) have been prepared in dilute sulfuric acid (H2SO4) via a novel sulfonation approach based on gas-liquid interfacial plasma (GLIP) at room temperature. The sulfonic acid groups and total acid

키워드

Gas-liquid interfacial plasma;Soft sulfonation;Dilute sulfuric acid;Sulfonated carbon catalysts;Cellulose transformation;

연속용융 도금라인 용 고내침식 Fe계 합금 개발

백민숙;김용철;백경철;곽준섭;윤동주;

순천대학교 RIC;(주)삼우에코;(주)삼우에코;순천대학교 RIC;순천대학교 RIC;

KISE Journal of Korean Institute of Surface Engineering, Vol. 53, No. , pp. 95-103.

초록

In this study, the material used in the hot dip galvanizing equipment was poorly corrosion-resistant, so it was performed to solve the cost and time problems caused by equipment replacement. The theoretical calculation was performed using the DV-Xα

키워드

Erosion resistant;Fe-based alloys;Martensite phase;$DV-X{alpha}$ method;Induction furnace;Potentiodynamic polarization test;Corrosion rate;Continuous hot dipping line;

Au 층간박막 두께에 따른 ZnO 박막의 전기광학적 특성 변화

박윤제;최수현;김유성;차병철;공영민;김대일;

울산대학교 첨단소재공학부;울산대학교 첨단소재공학부;한국생산기술연구원 첨단정형공정그룹;한국생산기술연구원 첨단정형공정그룹;울산대학교 첨단소재공학부;울산대학교 첨단소재공학부;

KISE Journal of Korean Institute of Surface Engineering, Vol. 53, No. , pp. 104-108.

초록

ZnO single layer films (100 nm thick) and Au intermediated ZnO films (ZnO/Au/ZnO; ZAZ) were deposited on the glass substrate by RF and DC magnetron sputtering at room temperature and then the influence of the Au interlayer on the electrical and optical pr

키워드

ZnO;Au;Sheet resistance;Visible transmittance;Optical band gap;

a-plane 사파이어기판에 증착된 Polycrystalline Diamond 박막의 특성

싱얀탄;장태환;권진욱;김태규;

부산대학교 나노융합기술학과;부산대학교 나노융합기술학과;부산대학교 나노융합기술학과;부산대학교 나노메카트로닉스공학과;

KISE Journal of Korean Institute of Surface Engineering, Vol. 53, No. , pp. 109-115.

초록

In this study, polycrystalline diamond was synthesized by chemical vapor deposition (CVD). Diamond films were deposited on a-plane sapphire substrates while changing the concentration of methane for hydrogen (CH4/H2), and the concent

키워드

a-plane sapphire substrate;Polycrystalline Diamond;MPECVD;Raman spectra;XRD;AFM;

알곤 이온빔 입사각에 따른 Polyethylene Naphthalate 필름 표면의 자가나노구조화 분석

조경환;양준영;변은연;박영배;정성훈;김도근;이승훈;

재료연구소 표면기술연구본부;재료연구소 표면기술연구본부;재료연구소 표면기술연구본부;안동대학교 신소재공학부 청정에너지소재기술연구센터;재료연구소 표면기술연구본부;재료연구소 표면기술연구본부;재료연구소 표면기술연구본부;

KISE Journal of Korean Institute of Surface Engineering, Vol. 53, No. , pp. 116-123.

초록

Ion beam irradiation induces self-organization of nanostructure on the surface of polymer film. We show that the incident angle of Ar ions on polyethylene naphthalate(PEN) film changes self-organized nanostructure. PEN film was irradiated by argon ion bea

키워드

Surface treatment;Self-organized;Nanostructure;Polymer;Ion beam;Quantitative measurement;Masking by oligomer;

차세대 메모리 디바이스Gap-Fill 공정 위한 공간 분할 PE-ALD개발 및 공정 설계

이백주;황재순;서동원;최재욱;

(주)한화 / 기계 부분 연구소;(주)한화 / 기계 부분 연구소;(주)한화 / 기계 부분 연구소;(주)한화 / 기계 부분 연구소;

KISE Journal of Korean Institute of Surface Engineering, Vol. 53, No. , pp. 124-129.

초록

This study is for the development of high temperature ALD SiO2 film process, optimized for gap-fill process in manufacturing memory products, using a space-divided PE-ALD system equipped with an independent control dual plasma system and orbita

키워드

Space-Divided PEALD;Gap-Fill;Deposition;High aspect ratio;Inhibitor;

Vol. 53 No.4

백색광 소자 응용을 위한 Gd2WO6:RE3+ (RE = Dy, Sm, Dy/Sm) 형광체의 구조 및 발광 특성

박기원;정재용;조신호;

신라대학교 신소재공학부;신라대학교 신소재공학부;신라대학교 신소재공학부;

KISE Journal of Korean Institute of Surface Engineering, Vol. 53, No. , pp. 131-137.

초록

A series of Dy3+, Sm3+, and Dy3+/Sm3+ doped Gd2WO6 phosphors were synthesized by the conventional solid-state reaction. The X-ray diffraction patterns revealed that all of the diffraction p

키워드

Phosphor;Photoluminescence;Solid-state reaction;Gadolinium tungstate;

전기화학적 금속 3D 프린터의 적층 조건 연구를 통한 마이크로 코일 제작

김영국;강동화;김성빈;유봉영;

애니캐스팅;한양대학교 재료화학공학과;애니캐스팅;한양대학교 재료화학공학과;

KISE Journal of Korean Institute of Surface Engineering, Vol. 53, No. , pp. 138-143.

초록

In this study, we produced a coil of micro-pattern that can be used for electromagnetic wave absorber, heating material, wireless charging, sensor, antenna, etc. by using electrochemical additive manufacturing method. Currently, it contains research conte

키워드

Electrodeposition;Additive manufacturing;Microcoil;Metal 3D Printer;Localization;

Improvement of joining strength between aluminum alloy and polymer by two - step anodization

Lee, Sung-Hyung;Yashiro, Hitoshi;Kure-Chu, Song-Zhu;

Gakko hojin Kitahara gakuen;Department of Chemistry and Biological Science, Iwate University;Materials Function and Design, Nagoya Institute of Technology;

KISE Journal of Korean Institute of Surface Engineering, Vol. 53, No. , pp. 144-152.

초록

In the manufacturing process of joining of aluminum alloy and polymer, the strength of the metal-polymer joining is greatly influenced by the nanostructure of the oxide film. In this study, we investigated the dependence of joining strength on the thickne

키워드

Adhesion;Anodizing;Aluminum oxide;Porous aluminum oxide;joining strength;

급속 파괴 양극산화로 제조된 TiO2 나노 튜브 분말을 활용한 폴리에틸렌 복합 필름의 UV 광촉매 분해

임경민;김용태;최진섭;

인하대학교 화학공학과;인하대학교 화학공학과;인하대학교 화학공학과;

KISE Journal of Korean Institute of Surface Engineering, Vol. 53, No. , pp. 153-159.

초록

Photocatalytic decomposition of polyethylene film with TiO2 nanotube powders (NTs) was investigated under UV irradiation at ambient conditions. TiO2 NTs composed of individual nanotubes are prepared by rapid breakdown anodization tec

키워드

Photocatalytic degradation;$TiO_2$ nanotube powders;Rapid breakdown anodization;Polyethylene film;

열전도성 점착제 응용을 위한 고분자 기반 탄소나노소재 복합체 제조 및 특성 평가

이병주;조성일;윤은혜;이애리;이우영;허성규;황재성;정구환;

강원대학교 대학원 신소재공학과;강원대학교 대학원 신소재공학과;(주)태양 3C;(주)태양 3C;강원대학교 대학원 신소재공학과;강원대학교 대학원 신소재공학과;(주)태양 3C;강원대학교 대학원 신소재공학과;

KISE Journal of Korean Institute of Surface Engineering, Vol. 53, No. , pp. 160-168.

초록

A polymer-based carbon nanomaterial composite was fabricated and characterized for the application of a thermal conductive adhesive. Low-dimensional carbon nanomaterials with excellent thermal conductivity such as carbon nanotube (CNT) and graphene were s

키워드

Polymer-based composites;Carbon nanomaterials;Filler;Thermal conductive adhesive;Heat dissipation;

원자층증착법으로 증착된 강유전성 플루오라이트 구조 강유전체 박막의 불순물 효과

이동현;양건;박주용;박민혁;

부산대학교 재료공학부;부산대학교 재료공학부;부산대학교 재료공학부;부산대학교 재료공학부;

KISE Journal of Korean Institute of Surface Engineering, Vol. 53, No. , pp. 169-181.

초록

The ferroelectricity in emerging fluorite-structure oxides such as HfO2 and ZrO2 has attracted increasing interest since 2011. Different from conventional ferroelectrics, the fluorite-structure ferroelectrics could be reliably scaled

키워드

Ferroelectric;Impurity;Polymorphism;$HfO_2$;$ZrO_2$;

Shear-coating을 사용한 은 나노와이어 투명 전극 제조 및 특성 분석

조경수;홍기하;박준식;정중희;

한밭대학교 공과대학 소재시스템공학과;한밭대학교 공과대학 신소재공학과;한밭대학교 공과대학 소재시스템공학과;한밭대학교 공과대학 소재시스템공학과;

KISE Journal of Korean Institute of Surface Engineering, Vol. 53, No. , pp. 182-189.

초록

Indium tin oxide (ITO) used a transparent electrode of a photoelectric device has a low sheet resistance and a high transmittance. However, ITO is disadvantageous in that the process cost is expensive, and the process time is long. Silver nanowires (AgNWs

키워드

Transparent conductive electrodes;Silver nanowires;Shear-coating;Alignment;Meniscus;

피로인산동 도금용액으로부터 전기도금 된 Cu 도금층의 물성에 미치는 인가전류밀도의 영향

윤필근;박덕용;

한밭대학교 신소재공학과;한밭대학교 신소재공학과;

KISE Journal of Korean Institute of Surface Engineering, Vol. 53, No. , pp. 190-199.

초록

Copper pyrophosphate baths were employed in order to study the dependencies of current efficiency, residual stress, surface morphology and microstructure of electrodeposited Cu thin layers on applied current density. The current efficiency was obtained to

키워드

Electrodeposition;Cu thin layer;pyrophosphate bath;thin film properties;current density;

Vol. 53 No.5

대기압 유전체배리어방전으로 합성 및 산화 처리된 SiOxCy(-H) 박막의 부식방지 특성

김기택;김윤기;

한밭대학교 신소재공학과;한밭대학교 신소재공학과;

KISE Journal of Korean Institute of Surface Engineering, Vol. 53, No. , pp. 201-206.

초록

A SiOxCy(-H) thin film was synthesized by atmospheric pressure dielectric barrier discharge(APDBD), and a SiO2-like layer was formed on the surface of the film by oxidation treatment using oxygen plasma. Hexamethylcyclotrisiloxane was used as a

키워드

Dielectric barrier discharge;Polymerization;Anti-corrosion;Silicon dioxide;Chemical vapor deposition;

은의 부식 및 변식에 미치는 전해질 용액에 따른 ICCP 전압의 영향

신병현;김도형;정원섭;

부산대학교, 재료공학과, 소재기술연구소;부산대학교, 재료공학과;부산대학교, 재료공학과;

KISE Journal of Korean Institute of Surface Engineering, Vol. 53, No. , pp. 207-212.

초록

Silver is an inexpensive precious metal and is used in various jewelry in Asia. Although silver has high potential, it has corrosion resistance that is vulnerable to boiling sulfuric acid and nitric acid. So, silver research is needed to prevent the corro

키워드

Silver;ICCP;Electrochemical properties;Surface corrosion;Discolor;

슈퍼커패시터용 그래핀볼 - 그래핀옥사이드 복합전극의 전기화학적 특성

정우준;오예찬;김상호;

한국기술교육대학교 에너지신소재화학공학과;한국기술교육대학교 에너지신소재화학공학과;한국기술교육대학교 에너지신소재화학공학과;

KISE Journal of Korean Institute of Surface Engineering, Vol. 53, No. , pp. 213-218.

초록

Composite material of the graphene ball (GB) inserted graphene oxide (GO) sheet for a supercapacitor electrode was studied. Chemical vapor deposition (CVD) process used to make GBs on the silicon oxide nanoparticles. The GBs mixed into the GO sheets to ma

키워드

Graphene;Graphene oxide;Graphene balls;Supercapacitor;

알루미늄 6061-T6 합금에 대한 양극산화층이 해수 내 부식 및 응력부식균열에 미치는 영향

신동호;황현규;정광후;김성종;

목포해양대학교 기관시스템공학과 대학원;목포해양대학교 기관시스템공학과 대학원;한국해양수산연수원 해사안전교육팀;목포해양대학교 기관시스템공학부;

KISE Journal of Korean Institute of Surface Engineering, Vol. 53, No. , pp. 219-226.

초록

This paper investigated the characteristics of anodized aluminum 6061-T6 alloy for corrosion and stress corrosion cracking(SCC) under natural seawater. The hard anodizing oxide film formed on the 6061-T6 was a uniform thickness of about 25 ㎛. The c

키워드

Anodizing;6061-T6;Corrosion;Stress corrosion cracking;Seawater;

알루미늄 프라이팬에 부착된 스텐리스판의 패턴이 열 변형 및 표면온도에 미치는 영향

문성모;윤명식;

재료연구소 표면기술연구본부;(주)쓰리바바;

KISE Journal of Korean Institute of Surface Engineering, Vol. 53, No. , pp. 227-231.

초록

This article investigated the effects of stainless steel plate-patterns bonded to aluminum frypan on the thermal distortion and surface temperature of the frypan during gas or induction heating. Two different stainless steel plate-patterns were employed:

키워드

Stainless steel plate-pattern;Aluminum frypan;Thermal distortion;Surface temperature;

미세구조가 제어된 전해도금 Cu2O 광양극의 광전기화학 특성

정다솔;조우현;정재범;정현성;

한국세라믹기술원 나노소재공정센터;한국세라믹기술원 나노소재공정센터;한국세라믹기술원 나노소재공정센터;한국세라믹기술원 나노소재공정센터;

KISE Journal of Korean Institute of Surface Engineering, Vol. 53, No. , pp. 232-240.

초록

Cu2O films as a photocathode for photoelectrochemical water splitting were potentiostatically deposited on FTO glasses. The morphology and composition of the electrodeposited Cu2O films were adjusted by the applied potentials. The po

키워드

$Cu_2O$ electrodeposition;$Cu_2O$ photocathode;Photoelectrochemical properties;

Diamond Crystal Growth Behavior by Hot Filament Chemical Vapor Deposition According to Pretreatment Conditions

Song, Chang Weon;You, Mi Young;Lee, Damin;Mun, Hyoung Seok;Kim, Seohan;Song, Pung Keun;

The Institute of Materials Technology, Pusan National University;The Institute of Materials Technology, Pusan National University;Department of Materials Science and Engineering, Pusan National University;Department of Materials Science and Engineering, P

KISE Journal of Korean Institute of Surface Engineering, Vol. 53, No. , pp. 241-248.

초록

The change of the deposition behavior of diamond through a pretreatment process of the base metal prior to diamond deposition using HFCVD was investigated. To improve the specific surface area of the base material, sanding was performed using sandblasting

키워드

Diamond film;Boron-doped diamond;Insoluble electrode;Pretreatment;Seeding;

알루미늄 합금 소재의 옥살산 아노다이징 피막 물성 연구

정나겸;박지현;

영광YKMC 기술연구소;영광YKMC 기술연구소;

KISE Journal of Korean Institute of Surface Engineering, Vol. 53, No. , pp. 249-256.

초록

As the size of manufacturing equipment for LCD and OLED displays increases, replacement of existing heavy stainless steel components with light metals, such as aluminum alloys, is being more important in semiconducting and display manufacturing industries

키워드

Aluminum;Oxalic acid anodizing;Hardness;Dielectric breakdown;Acid resistance;

단일공정 양극산화를 이용한 WO3가 복합된 304 스테인레스 강 산화 피막 제조

김문수;이재원;이기영;김용태;최진섭;

인하대학교 화학공학과;경북대학교 미래과학기술융합학과;경북대학교 미래과학기술융합학과;인하대학교 화학공학과;인하대학교 화학공학과;

KISE Journal of Korean Institute of Surface Engineering, Vol. 53, No. , pp. 257-264.

초록

Anodization of Fe and Fe alloys is one of the most promising techniques to obtain iron oxide films applying to the various electrochemical devices due to their electrochemical catalytic properties. In this study, we investigate on the preparation of anodi

키워드

Stainless steel;Tungsten oxide;Single-step anodization;Composite film;

고분자물질과 접촉한 자기조립단분자막 전극 물질의 기계화학 현상 분광학적 연구

윤창석;

신소재화학과, 고려대학교 세종캠퍼스;

KISE Journal of Korean Institute of Surface Engineering, Vol. 53, No. , pp. 265-270.

초록

We investigated mechanochemical radical, which is concomitant with chemical lift-off lithography(CLL), on the self-assembled monolayer(SAM)/electrodes and a polydimethylsiloxane(PDMS) using a colorimetric and a spectroscopic method. The 11-mercaptoundecan

키워드

Chemical Lift-Off lithography(CLL);Mechanochemistry;Self-Assembled Monolayer(SAM);Radical;Bond Breaking;

Vol. 53 No.6

드릴공구의 이종질화막상 DLC 희생층 적용을 통한 공구 수명 개선 연구

강용진;김도현;장영준;김종국;

한국재료연구원 표면재료연구본부 극한환경코팅연구실;한국재료연구원 표면재료연구본부 극한환경코팅연구실;한국재료연구원 표면재료연구본부 극한환경코팅연구실;한국재료연구원 표면재료연구본부 극한환경코팅연구실;

KISE Journal of Korean Institute of Surface Engineering, Vol. 53, No. , pp. 271-279.

초록

Non-ferrous metals, widely used in the mechanical industry, are difficult to machine, particularly by drilling and tapping. Since non-ferrous metals have a strong tendency to adhere to the cutting tool, the tool life is greatly deteriorated. Diamond-like

키워드

Drill tool;sacrificial layer;Ion Source;DLC;Tribology;

Titanium Aluminium Nitride 후막의 전자-빔 조사 효과

최수현;허성보;공영민;김대일;

울산대학교 첨단소재공학부;한국생산기술연구원, 첨단하이브리드생산기술센터;울산대학교 첨단소재공학부;울산대학교 첨단소재공학부;

KISE Journal of Korean Institute of Surface Engineering, Vol. 53, No. , pp. 280-284.

초록

Electron beam irradiation is widely used as a type of surface modification technology to advance surface properties. In this study, the effect of electron beam irradiation on properties, such as surface hardness, wear resistance, roughness, and critical l

키워드

TiAlN;Arc ion plating;Electron irradiation;Hardness;Roughness;

대기압 플라즈마 제트 시스템을 이용한 문화재 내 세균류 및 진균류의 살균

조성일;박동민;이병훈;소명기;하석진;정구환;

강원대학교 대학원 신소재공학과;강원대학교 대학원 생물공학과;강원도문화재연구소;강원대학교 대학원 신소재공학과;강원대학교 대학원 생물공학과;강원대학교 대학원 신소재공학과;

KISE Journal of Korean Institute of Surface Engineering, Vol. 53, No. , pp. 285-292.

초록

Ancient cultural heritage made up of wood and organic fibers have been easily disintegrated or decomposed by various microorganisms like bacteria and fungi. Here, we demonstrate the effectiveness of an atmospheric pressure plasma jet (APPJ) system to ster

키워드

Ancient cultural heritage;Sterilization;Atmospheric pressure plasma jet;Optical emission spectroscopy;Reactive oxygen species;

흑연 금형 표면 보호용 PCS 코팅층의 열경화에 의한 조성비 조절 특성 연구

김경호;이윤주;신윤지;정성민;이명현;배시영;

한국세라믹기술원 에너지환경본부;한국세라믹기술원 에너지환경본부;한국세라믹기술원 에너지환경본부;한국세라믹기술원 에너지환경본부;한국세라믹기술원 에너지환경본부;한국세라믹기술원 에너지환경본부;

KISE Journal of Korean Institute of Surface Engineering, Vol. 53, No. , pp. 293-299.

초록

The characteristics of the polycarbosilane (PCS)-based composite ceramic layer was studied by controlling the curing temperature. The stress at the interface of the graphite and SiOC composite layer was evaluated v ia finite element analysis. As a result,

키워드

SiC;VDR;PCS;Graphite;Functional grading materials;Composite ceramic;

콘크리트의 소수성 표면처리를 통한 철강 보강재의 내식성 향상

조현빈;신동민;서은혜;이욱진;이정훈;

부경대학교 금속공학과;부경대학교 금속공학과;부경대학교 금속공학과;한국생산기술연구원;부경대학교 금속공학과;

KISE Journal of Korean Institute of Surface Engineering, Vol. 53, No. , pp. 300-305.

초록

Corrosion of reinforcement steel rebar is a serious problem in a wide range of concrete application for buildings and infrastructures. Hydrophobizing surface treatments, such as self-assembled monolayer coating, edible oil-impregnation and silicone oil-im

키워드

Corrosion;Concrete;Hydrophobicity;Oil-Impregnation;

DLC 박막과 복합처리(Nitriding/DLC)한 박막의 기계적 특성 비교

박현준;김민채;김상섭;문경일;

한국생산기술연구원;(주)일렉트로엠;인하대학교 신소재공학과;한국생산기술연구원;

KISE Journal of Korean Institute of Surface Engineering, Vol. 53, No. , pp. 306-311.

초록

In this work, diamond-like carbon (DLC) films are coated onto plasma nitrided AISI 4140 steel by DC-pulsed PECVD. One problem of DLC films is their very poor adhesion on steel substrates. The purpose of the nitriding was to enhance adhesion between the su

키워드

Plasma nitriding;DLC;Duplex treatment;Adhesion force;

전기화학적 방법을 통한 다공성 코발트 박막 합성

하성혁;신헌철;

부산대학교 재료공학부;부산대학교 재료공학부;

KISE Journal of Korean Institute of Surface Engineering, Vol. 53, No. , pp. 312-321.

초록

Morphology of porous cobalt electro-deposits was systematically investigated as functions of cobalt precursors in the plating bath and applied cathodic current density with a special focus on cobalt nano-rod formation. It was proved that the concentration

키워드

Cobalt;Porous structure;Nanorod;Cobalt sulfate;Preferential growth;

스크랩 장입 비율에 따른 다이캐스팅용 알루미늄 합금의 부식 특성

김준호;이승효;

한국해양대학교 해양신소재융합공학과;한국해양대학교 해양신소재융합공학과;

KISE Journal of Korean Institute of Surface Engineering, Vol. 53, No. , pp. 322-329.

초록

The utilization of aluminum scrap is a subject of great importance in terms of reducing energy consumption and environmental protection. However, aluminum scrap contains impurities, which can degrade the properties of aluminum alloy, especially corrosion

키워드

Al Die Casting alloys;Aluminum Scrap;Microstructure;Corrosion Resistance;Micro-galvanic Interaction;Intergranular Corrosion;

플루오라이트 구조 강유전체 박막의 분극 반전 동역학 리뷰

김세현;박근형;이은빈;유근택;이동현;양건;박주용;박민혁;

부산대학교 산학협력단 기술사업부;부산대학교 재료공학부;부산대학교 재료공학부;부산대학교 재료공학부;부산대학교 재료공학부;부산대학교 재료공학부;부산대학교 재료공학부;부산대학교 재료공학부;

KISE Journal of Korean Institute of Surface Engineering, Vol. 53, No. , pp. 330-342.

초록

Since the original report on ferroelectricity in Si-doped HfO2 in 2011, fluorite-structured ferroelectrics have attracted increasing interest due to their scalability, established deposition techniques including atomic layer deposition, and compatibility

키워드

ferroelectric;polarization switching kinetics;domain dynamics;hafnia;semiconductor devices;

H13 공구강의 전처리에 따른 Mo-Cu-N 코팅의 기계적 특성

박현준;문경일;김상섭;

한국생산기술연구원 열처리그룹;한국생산기술연구원 열처리그룹;인하대학교 신소재공학과;

KISE Journal of Korean Institute of Surface Engineering, Vol. 53, No. , pp. 343-350.

초록

The degradation of mechanical properties of nitride coatings to steel substrates is one of the main challenges for industrial applications. In this study, plasma nitriding treatment was used in order to increase the mechanical properties of Mo-Cu-N coatin

키워드

MoN-Cu thin film;Single alloy target;Pulsed DC magnetron Sputtering;Nanocomposite coating;Plasma nitriding;

알루미늄 2024 합금의 플라즈마 전해산화 피막의 형성 거동 및 피막 물성에 미치는 인산나트륨 농도의 영향

김주석;신헌철;문성모;

한국재료연구원 표면재료연구본부;부산대학교 재료공학부;한국재료연구원 표면재료연구본부;

KISE Journal of Korean Institute of Surface Engineering, Vol. 53, No. , pp. 351-359.

초록

Formation behavior and properties of PEO (Plasma Electrolytic Oxidation) film on AA2024 were investigated under application of pulsed current as a function of Na3PO4 concentration in 0.05 M Na2SiO3 solution by analyzing voltage-time behavior, in-situ obse

키워드

Plasma electrolytic oxidation;Phosphate concentration;AA2024;Anodic oxide;

다층막 ta-C 코팅 적용을 통한 절삭공구의 내마모성 향상

김도현;강용진;장영준;김종국;

한국재료연구원, 표면재료연구본부;한국재료연구원, 표면재료연구본부;한국재료연구원, 표면재료연구본부;한국재료연구원, 표면재료연구본부;

KISE Journal of Korean Institute of Surface Engineering, Vol. 53, No. , pp. 360-368.

초록

Wear resistance of cutting tools is one of the most important requirements in terms of the durability of cutting tool itself as well as the machining accuracy of the workpiece. Generally, tungsten carbide ball end mills have been processed with hard coati

키워드

ta-C;Multilayers;Wear resistance;Hardness;Elastic recovery;Diamond coating;