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Effect of Potassium Carbonate Additives on the Properties of Copper Foils Electroplated at High Current Density
고전류밀도에서의 탄산칼륨 첨가제의 전해동박 특성에 미치는 영향
Tae-Gyu Woo, Il-Song Park
우태규, 박일송
Korean J. Met. Mater. 2023;61(5):347-354.   Published online 2023 Apr 20
DOI: https://doi.org/10.3365/KJMM.2023.61.5.347

Abstract
The amount and kind of additives in electrolytes play a very important role on the electroplating of Cu foil, which is used as a cathode materials for secondary batteries. As the use of Cu foil increased, various studies on the electroplated Cu foil are urgently needed. We studied surface characteristics..... More

                
Properties of Perovskite Solar Cells with Low Temperature Sintered SnO<sub>2</sub> Electron Transport Layers
저온 소결 처리된 SnO2 전자전달층을 가진 페로브스카이트 태양전지의 물성
Hojun Kim, Yongwook Lee, Yeongjun Oh, Kwangbae Kim, Ohsung Song
김호준, 이용욱, 오영준, 김광배, 송오성
Korean J. Met. Mater. 2022;60(7):545-550.   Published online 2022 Jun 3
DOI: https://doi.org/10.3365/KJMM.2022.60.7.545

Abstract
This study investigated the photovoltaic properties and microstructure of perovskite solar cells (PSCs) with an ITO/SnO2/perovskite/HTL/Au electrode configuration, developed with varying sintering temperatures (100~200°C). The goal was to use SnO2 ink as the electron transport layer (ETL) by low-temperature sintering. TGA-DTA analysis was conducted to determine the optimum sintering temperature..... More

                   Web of Science 1  Crossref 2
A Study on the Effects of Surface Energy and Topography on the Adhesive Bonding of Aluminum Alloy
Gilho Kang, Wonjong Choi
Korean J. Met. Mater. 2021;59(8):567-574.   Published online 2021 Jul 5
DOI: https://doi.org/10.3365/KJMM.2021.59.8.567

Abstract
The bonding properties of adhesives are mainly affected by surface roughness, topography and chemical adsorption. In this paper, we studied the effects of surface pretreatment of Al 2024-T3 (bare) in terms of surface roughness, topography and surface free energy. Surface pre-treatment included solvent cleaning, FPL etching, PAA and CAA treatment...... More

                   Crossref 1
Effects of JGB Additives on the Microstructures and Electrical Properties of Electroplated Copper Foil
JGB 첨가제에 의한 동박의 미세구조변화와 전기적 특성
Tae-Gyu Woo, Il-Song Park
우태규, 박일송
Korean J. Met. Mater. 2021;59(6):404-411.   Published online 2021 May 26
DOI: https://doi.org/10.3365/KJMM.2021.59.6.404

Abstract
Extremely thin film high quality copper foil is required to ensure high performance in electronics and slimness in secondary batteries. During the electroplating of copper foil, Janus Green B(JGB) and Collagen were introduced as additives to the electrolytes to study their effects. The structural and electrical properties of the electroplated..... More

                   Web of Science 2  Crossref 3
Initial Behavior of Additives and Mechanical Properties of Copper Foils on High Current Density
고전류밀도에서의 첨가제 초기 거동 및 동박의 기계적 특성
Tae-Gyu Woo, Jong-Jae Park, Il-Song Park
우태규, 박종재, 박일송
Korean J. Met. Mater. 2021;59(5):304-313.   Published online 2021 Apr 6
DOI: https://doi.org/10.3365/KJMM.2021.59.5.304

Abstract
In this study, we studied the surface and mechanical properties of multiple additives as well as the initial plating properties of individual additives. With the individual additive groups, copper crystals tended to converge at a stage above the critical amount of additive. When chloride ions were added, large crystals formed..... More

                   Web of Science 2  Crossref 2
Measurement of Intrinsic Hardness of Deposited Chromium Thin Films by Nanoindentation Method and Influencing Factors
나노인덴테이션 방법으로 크롬 박막의 고유경도를 측정하는 방법과 영향 인자
Young-Joon Kang, Ju-Hwan Baeg, Hyun Park, Young-Rae Cho
강영준, 백주환, 박현, 조영래
Korean J. Met. Mater. 2020;58(3):207-215.   Published online 2020 Mar 5
DOI: https://doi.org/10.3365/KJMM.2020.58.3.207

Abstract
Materials with very small dimensions exhibit different physical and mechanical properties compared to their bulk counterparts. This becomes significantly important for the thin films that are widely used as components in micro-electronics and functional materials. In this study, a chromium (Cr) thin film was deposited on a silicon (Si) wafer..... More

                   Web of Science 3  Crossref 3
Characterization of the Laser Surface Nitriding of Ti-6Al-4V Alloys in Nitric Acid Solution and Nitrogen Gas Atmosphere
질산용액 및 질소가스 분위기에서 Ti-6Al-4V 합금의 레이저 표면질화 특성분석
Tae-woo Hwang, Sang-wook Han, Il-yeong Oh, Young-hoon Moon
황태우, 한상욱, 오일영, 문영훈
Korean J. Met. Mater. 2019;57(7):412-421.   Published online 2019 Jun 5
DOI: https://doi.org/10.3365/KJMM.2019.57.7.412

Abstract
Laser nitriding is a surface engineering technique that is being used on titanium alloys to improve their surface hardness and wear resistance. It is an attractive process because of its simplicity and the possibility of producing hard layers of substantial depth with minimum effect to the bulk of the material...... More

                   Web of Science 3  Crossref 4
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