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Table of Contents | May, 2021  Vol. 59   No.5 Previous Issue | Next Issue | Archive
In this issue:


Research Papers
281 Microstructure and Mechanical Properties of Cu-Ni-Zr-Ti Bulk Metallic Glass Composites by Spark Plasma Sintering
방전플라즈마 소결법에 의해 제조된 Cu-Ni-Zr-Ti 비정질 기지 복합재료의 미세조직 및 기계적 특성
Da Woon Shin, Hong Min, Jin Kyu Lee
신다운, 민 홍, 이진규
Korean J. Met. Mater. 2021;59(5):281-288.   Published online 2021 Apr 6
DOI: https://doi.org/10.3365/KJMM.2021.59.5.281

Abstract
In the present study, Cu54Ni6Zr22Ti18 bulk metallic glass composites were developed by spark plasma sintering(SPS) using gas atomized Cu54Ni6Zr22Ti18 metallic glass powders and Ta powders. Metallic glass composites with Ta phase were fabricated by SPS. The successful consolidation of Cu54Ni6Zr22Ti18 metallic glass matrix composites with the Ta phase was achieved..... More

                   Web of Science 1  Crossref 2
289 Microstructure and Sintering Behavior of Fine Tungsten Powders Synthesized by Ultrasonic Spray Pyrolysis
초음파 분무 열분해법으로 제조한 텅스텐 미세분말의 미세조직과 소결 거동
Hyeonhui Jo, Jeong Hyun Kim, Young-In Lee, Young-Keun Jeong, Sung-Tag Oh
조현희, 김정현, 이영인, 정영근, 오승탁
Korean J. Met. Mater. 2021;59(5):289-294.   Published online 2021 Apr 6
DOI: https://doi.org/10.3365/KJMM.2021.59.5.289

Abstract
The powder microstructure and sintering behavior of W prepared by ultrasonic spray pyrolysis and spark plasma sintering were investigated. Fine-grained W powders were synthesized by ultrasonic spray pyrolysis using an ammonium metatungstate hydrate solution and hydrogen reduction. The XRD analysis of the powder, pyrolyzed below 600 oC, showed tungsten oxide..... More

                   Web of Science 2  Crossref 2
295 Dispersion Behavior of Blast Furnace Sludge for Valuable Metal Recovery
유가금속 회수를 위한 고로 슬러지의 분산 거동
Jae-Heon Jung, So-Yeong Lee, Joo Choi, Ho-Sang Sohn
정재헌, 이소영, 최 주, 손호상
Korean J. Met. Mater. 2021;59(5):295-303.   Published online 2021 Apr 6
DOI: https://doi.org/10.3365/KJMM.2021.59.5.295

Abstract
Blast furnace sludge, which comes from the iron making process, contains many valuable materials including iron, carbon, and zinc, etc. Because a cohesive agent is added during filtration, fine sludge particles are agglomerated together. Therefore, This makes it necessary to disperse the sludge in solution before separating or recovering valuable..... More

                   Web of Science 2  Crossref 2
304 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
314 Preparation of Li-Doped Indium-Zinc Oxide Thin-Film Transistor at Relatively Low Temperature Using Inkjet Printing Technology
잉크젯 인쇄 기술을 이용하여 상대적으로 낮은 온도에서 리튬이 도핑 된 인듐-아연-산화물 트랜지스터의 제작
Woon-Seop Choi
최운섭
Korean J. Met. Mater. 2021;59(5):314-320.   Published online 2021 Apr 6
DOI: https://doi.org/10.3365/KJMM.2021.59.5.314

Abstract
Inkjet printing is a very attractive technology for printed electronics and a potential alternative to current high cost and multi-chemical lithography processes, for display and other applications in the electronics field. Inkjet technology can be employed to fabricate organic light emitting diodes (OLED), quantum dots displays, and thin-film transistors (TFTs)...... More

                   Web of Science 4  Crossref 4
321 Study on A-Site Compositional Mixing for the Shear Coating Process of FA-Based Lead Halide Perovskites
A-site 조성 제어를 통한 FA기반 페로브스카이트의 상안정화 및 전단 코팅 최적화 연구
Hansol Kim, Hyewon Gu, Minju Song, Choong-Heui Chung, Yong-Jun Oh, Chang Eun Song, Ki-Ha Hong
김한솔, 구혜원, 송민주, 정중희, 오용준, 송창은, 홍기하
Korean J. Met. Mater. 2021;59(5):321-328.   Published online 2021 Apr 6
DOI: https://doi.org/10.3365/KJMM.2021.59.5.321

Abstract
Halide perovskite solar cells have been attracting tremendous attention as next-generation solar cell materials because of their excellent optical and electrical properties. Formamidinium lead tri-iodide (FAPbI3) exhibits the narrowest band gap among lead iodide perovskites and shows excellent thermal and chemical stability, also. However, the large-area coating of FAPbI3 needed..... More

                
329 Charge Transport and Thermoelectric Properties of Mn-Doped Tetrahedrites Cu12-xMnxSb4S13
Sung-Yoon Kim, Go-Eun Lee, Il-Ho Kim
Korean J. Met. Mater. 2021;59(5):329-335.   Published online 2021 Apr 6
DOI: https://doi.org/10.3365/KJMM.2021.59.5.329

Abstract
Mn-doped tetrahedrites Cu12-xMnxSb4S13 (0.1 ≤ x ≤ 0.4) were synthesized by mechanical alloying (MA) and sintered by hot pressing (HP). A single tetrahedrite phase was synthesized by MA without post-annealing, and it was stable without any phase changes after HP. The hot-pressed specimens had a relative density higher than 98.6%...... More

                   Web of Science 1  Crossref 1
336 Synthesis of Mesoporous Carbon from PVDF and PTFE via Defluorination of 1,8-Diazabicyclo[5.4.0]undec-7-ene (DBU)
1,8-Diazabicyclo[5.4.0]undec-7-ene (DBU)의 탈불화를 이용한 PVDF와 PTFE로부터 메조포러스 탄소의 합성
In-Sik Son, Beodl Hwang, Sang-Eun Chun
손인식, 황버들, 전상은
Korean J. Met. Mater. 2021;59(5):336-345.   Published online 2021 Apr 6
DOI: https://doi.org/10.3365/KJMM.2021.59.5.336

Abstract
Porous carbon has found commercial applications as a filter material based on the sorption ability of its pores. The pore size and surface properties of the carbon can be varied depending on the type of particles to be filtered. Here, mesoporous carbon was induced through the pyrolysis of polyvinylidene fluoride..... More

                   Web of Science 1  Crossref 1
346 Ultraviolet Light-Responsive Photorheological Fluid for Sensors and Actuators Realized by Phosphorescence Effects and LSTM RNN
Min Young Cho, Suman Timilsina, Jong Wook Roh, Walter Commerell, Ho Geun Shin, Yong-Nam Kwon, Ji Sik Kim
Korean J. Met. Mater. 2021;59(5):346-353.   Published online 2021 Apr 6
DOI: https://doi.org/10.3365/KJMM.2021.59.5.346

Abstract
A photo-rheological fluid (PRF) is a smart fluid which exhibits different viscosity under UV irradiation. A PRF is comprehensively presented in this work, with particular focus on its responses under UV off/on conditions. The isomeric conversion from SP to MC and vice versa under UV off and on, respectively, showed..... More

                   Web of Science 2  Crossref 2
Erratums
354 Erratum to: Effect of Al and Zr Contents on Mechanical Properties of Ni-Al-Bronze
Erratum to: 니알브론즈의 기계적 특성에 미치는 알루미늄 및 지르코늄 함량의 영향
[Original]
Jee Hyuk Ahn, Dong Wook Kim, Min Soo Kim, Jong-Hyun Hwang, Seung Zeon Han
안지혁, 김동욱, 김민수, 황종현, 한승전
Korean J. Met. Mater. 2021;59(5):354-354.   Published online 2021 Apr 26
DOI: https://doi.org/10.3365/KJMM.2021.59.5.354
Abstract
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355 Erratum to: Effects of Two-Step Anodization on Surface Wettability in Surface Treatment of Aluminum Alloy
Erratum to: 알루미늄 합금의 표면처리에 있어서 2단계 양극산화의 젖음성 영향
[Original]
Jae Dong Eo, Jingyu Kim, Yongsug Jung, Jong-Hang Lee, Wook Bae Kim
어재동, 김진규, 정용석, 이종항, 김욱배
Korean J. Met. Mater. 2021;59(5):355-355.   Published online 2021 Apr 26
DOI: https://doi.org/10.3365/KJMM.2021.59.5.355
Abstract
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