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Korean J. Met. Mater.
2022;60(10):760-768. Published online 2022 Sep 29
DOI:
https://doi.org/10.3365/KJMM.2022.60.10.760
Abstract
Nanostructured transparent conductors have been studied intensively for application to flexible and transparent electronic devices. Among diverse nanomaterials, electrospun nanofibers provide several advantages over other nanomaterials, including a high aspect ratio, uniform distribution, and a facile fabrication process. In the present study, an electrode composed of a core-shell (PVDF)-(Al) structured.....
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Li 도핑에 따른 CuO 광전극의 광전기화학적 특성 개선 연구
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배성찬, 이성혁, 류혁현, 이원재
Korean J. Met. Mater.
2022;60(8):577-586. Published online 2022 Jul 12
DOI:
https://doi.org/10.3365/KJMM.2022.60.8.577
Abstract
We fabricated a Li doped CuO photoelectrode by doping CuO with Li to improve the photoelectrochemical properties of the CuO photoelectrode. The fabricated Li doped CuO photoelectrode was optimized by experimentally investigating Li doping concentration, annealing temperature, and spin coating deposition cycle. It was confirmed that Li doped CuO had.....
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Cited By 1
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Al 5052-H32 합금의 저항 점 용접 시 가압력 제어 방식에 따른 미세조직 및 용접특성 비교
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김원호, 김재훈, 전현욱, 김재원, 이은경, 지창욱
Korean J. Met. Mater.
2022;60(5):350-359. Published online 2022 Apr 22
DOI:
https://doi.org/10.3365/KJMM.2022.60.5.350
Abstract
Recently, lightweight vehicle bodies are in increasing demand to satisfy exhaust gas and environmental regulations around the world. In particular, aluminum alloys are widely used to manufacture lightweight parts, because of their excellent properties including corrosion resistance and mechanical properties. After the forming process, the welding process is important for.....
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MoO
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보호막 적층 Si
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기반 세라믹 히터 소자 연구
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전용민, 유시홍, 김선호, 이성의
Korean J. Met. Mater.
2022;60(4):301-306. Published online 2022 Mar 28
DOI:
https://doi.org/10.3365/KJMM.2022.60.4.301
Abstract
Currently, the need for high performance heaters for industrial application is increasing, and repeated wear, rapid temperature change, and uneven temperature can cause deteriorating quality and reduced productivity. The ceramic heater in this study consists of a substrate, an electrode layer, and a protective layer, and low-melting temperature glass frit.....
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A6014-T4 합금 소재의 저항 점 용접 시 용융 거동 및 전극 열화에 미치는 전극 패터닝 효과
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전현욱, 김재훈, 김재원, 이은경, 김양도, 지창욱
Korean J. Met. Mater.
2020;58(12):863-874. Published online 2020 Dec 4
DOI:
https://doi.org/10.3365/KJMM.2020.58.12.863
Abstract
In this study, the effects of electrode surface design on the resistance spot weldability and degradation of the electrode following resistance spot welding (RSW) of aluminum 6014-T4 alloy were investigated. A new patterning method that can be produced through repetitive pressurization was applied to the electrode, producing a lattice-like pattern.....
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Cited By 5
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전기방사법을 이용한 산화 그래핀-은 나노섬유 투명전극
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현재영, 좌성훈, 박경완, 석중현
Korean J. Met. Mater.
2020;58(9):626-632. Published online 2020 Aug 19
DOI:
https://doi.org/10.3365/KJMM.2020.58.9.626
Abstract
We fabricated a transparent conducting electrode composed of graphene oxide (GO) and silver (Ag) nanofibers. The graphene oxide was spray-coated on the Ag nanofiber film, which was fabricated by electrospinning process. Ag/poly(vinyl alcohol) ink was fabricated in a polymer matrix solution using the solgel method. The sprayed film was sintered.....
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Cited By 5
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Korean J. Met. Mater.
2020;58(1):1-6. Published online 2020 Jan 1
DOI:
https://doi.org/10.3365/KJMM.2020.58.1.1
Abstract
The effect of thiourea on the nano-mechanical and chemical properties of Ni-P foil was studied to develop a high performance Ni-P deposit for automobile and machinery parts. The Ni-P deposit was prepared by electroforming in a modified sulphate bath with different amounts of thiourea. Chemical analysis of the electrodeposited Ni-P.....
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Cited By 3
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마그네트론 스퍼터링법으로 제조된 ZnO/Cu/ZnO 유연 투명전극 성능 최적화 연구
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김대균, 이태형, 최두호
Korean J. Met. Mater.
2019;57(12):795-800. Published online 2019 Nov 22
DOI:
https://doi.org/10.3365/KJMM.2019.57.12.795
Abstract
With the expanding development of flexible optoelectronic devices, the need for high-performance (i.e., high conductivity, high transmittance and flexibility) transparent conductive electrodes has grown. In this study, the critical role of thickness for each of the layers in ZnO/Cu/ZnO transparent conductive electrodes (TCE) for optoelectronic devices has been investigated. The.....
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Cited By 6
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초고강도강 저항 점용접 연속타점시 전극의 국부적 합금화 현상이 용접품질 저하에 미치는 영향 연구
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김재원, Siva Prasad Murugan, 강남현, 박영도
Korean J. Met. Mater.
2019;57(11):715-725. Published online 2019 Nov 5
DOI:
https://doi.org/10.3365/KJMM.2019.57.11.715
Abstract
Evaluation of electrode degradation in resistance spot welding of 1180TRIP steel was carried out through an electrode life test, and weldability testing was performed by the measurement of the nugget size, the peak load analysis and the measurement of the electrode tip size at 30 intervals. Analysis of the change.....
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Cited By 5
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광전 손실과 핀홀 생성의 억제를 통한 유연 투명 TiO
2
/Cu/ZnO 전극의 최적화 연구
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정은욱, 이건환, 조영래, 윤정흠
Korean J. Met. Mater.
2019;57(5):316-323. Published online 2019 Apr 10
DOI:
https://doi.org/10.3365/KJMM.2019.57.5.316
Abstract
We demonstrated an effective method for fabricating a highly efficient flexible transparent electrode in an oxide/metal/oxide configuration based on an ultrathin Cu film. It exhibited low losses in optical transmittance and electrical conductivity while minimizing current loss due to pinhole-related leakages. The Cu film was developed on a chemically heterogeneous.....
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Cited By 2
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스퍼터링법으로 증착된 ZnO/Ag/ZnO 투명전극의 성능 최적화 연구
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조우현, 최두호
Korean J. Met. Mater.
2019;57(2):91-96. Published online 2019 Jan 11
DOI:
https://doi.org/10.3365/KJMM.2019.57.2.91
Abstract
The critical role of the thicknesses of the top and bottom oxide layers, as well as Ag layer, in ZnO/Ag/ZnO transparent conductive electrodes were investigated. The Ag forms a nearly continuous layer at the thickness of 8 nm, at which the Ag sheet resistance of 8.0 Ω/Sq. is lower than.....
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Cited By 9
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Korean J. Met. Mater.
2017;55(11):768-776. Published online 2017 Oct 31
DOI:
https://doi.org/10.3365/KJMM.2017.55.11.768
Abstract
A thin, compact, and uniform cobalt layer was coated on ferritic stainless steel (Crofer 22 APU) by high frequency square pulsed electrodeposition in an aqueous solution containing cobalt chloride and boric acid. The effects of various electrodeposition parameters and post heat treatment on the morphology, thickness, roughness and adhesion of.....
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