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  • Most-cited are based on citations from 2019 ~ 2021.

  • 162 Extraction Behavior of Hydrogen Ion by an Ionic Liquid Mixture of Aliquat 336 and Cyanex 272 in Chloride Solution
    Minh Nhan Le, Seong Ho Son, Man Seung Lee
    Korean J. Met. Mater. 2019;57(3):162-169.   Published online 2019 Feb 8
    DOI: https://doi.org/10.3365/KJMM.2019.57.3.162

    Abstract
    During the extraction of metal ions from a weak acidic chloride solution by ionic liquids consisting of an organophosphorus extractant and Aliquat 336, the equilibrium pH is sometimes observed to be higher than the initial pH. To compare the hydrogen ion extraction behavior of tertiary and quaternary amines, Alamine 336,..... More

                               Cited By 9
    227 Anisotropy in Green Body Bending Strength due to Additive Direction in the Binder-Jetting Additive Manufacturing Process
    Ji-Won Oh, Sahn Nahm, Byoungmoon Kim, Hanshin Choi
    Korean J. Met. Mater. 2019;57(4):227-235.   Published online 2019 Apr 5
    DOI: https://doi.org/10.3365/KJMM.2019.57.4.227

    Abstract
    The additive manufacturing (AM) process is a production technology process that has recently attracted attention. Among AM processes, the binder jetting (BJ) method is advantageous because it allows both wide material selection and design freedom. However, the output arrangement, which determines the direction in which the binder is injected during..... More

                               Cited By 9
    91 Optimization of ZnO/Ag/ZnO Transparent Conductive Electrodes Fabricated by Magnetron Sputtering
    스퍼터링법으로 증착된 ZnO/Ag/ZnO 투명전극의 성능 최적화 연구
    Woo Hyeon Jo, Dooho Choi
    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..... More

                               Cited By 8
    176 Effects of Zn(BH4)2, Ni, and/or Ti Doping on the Hydrogen-Storage Features of MgH2
    Myoung Youp Song, Young Jun Kwak
    Korean J. Met. Mater. 2019;57(3):176-183.   Published online 2019 Feb 8
    DOI: https://doi.org/10.3365/KJMM.2019.57.3.176

    Abstract
    In the present work, MgH2 was doped with Zn(BH4)2, Ni, and/or Ti to improve its hydrogen absorption and release features. Samples were prepared by grinding in a planetary ball mill in a hydrogen atmosphere. To increase the hydrogen absorption and release rates without significantly sacrificing hydrogenstorage capacity the additive percentages..... More

                               Cited By 6
    310 Effect of BN Addition on the Mechanical Properties of AlN
    AlN 기계적 성질에 미치는 BN 첨가 영향
    Woo-Jin Cho, Se-Hoon Oh, In-Jin Shon
    조우진, 오세훈, 손인진
    Korean J. Met. Mater. 2019;57(5):310-315.   Published online 2019 Apr 10
    DOI: https://doi.org/10.3365/KJMM.2019.57.5.310

    Abstract
    Aluminum nitride (AlN) has several attractive properties including high thermal conductivity, excellent electrical insulation, a thermal expansion coefficient close to that of Si and low density. Accordingly, it is considered a promising packing material and substrate for high power integrated circuits. However, its low fracture toughness at room temperature limits..... More

                               Cited By 6
    324 Influence of Film Thickness on the Electrical and Optical Properties of ZnO/Ag/SnO2 Tri-Layer Films
    ZnO/Ag/SnO2 적층박막의 두께 변화에 따른 전기적, 광학적 특성 연구
    Yu-Sung Kim, Jin-Young Choi, Yun-Je Park, Su-Hyeon Choe, Young-Min Kong, Daeil Kim
    김유성, 최진영, 박윤제, 최수현, 공영민, 김대일
    Korean J. Met. Mater. 2019;57(5):324-327.   Published online 2019 May 5
    DOI: https://doi.org/10.3365/KJMM.2019.57.5.324

    Abstract
    ZnO/Ag/SnO2 (ZAS) tri-layer films were prepared on glass substrates via RF and DC magnetron sputtering, and then the influence of the thickness of the ZnO and SnO2 layers on the optical and electrical properties of the ZAS films was investigated. As deposited ZnO 50 nm/Ag 10 nm/SnO2 50 nm films..... More

                               Cited By 6
    184 Estimation of Chemical Composition of Al-Si Cast Alloys Using Image Recognition
    화상인식을 이용한 Al-Si 주조용 합금의 화학조성 예측
    Sang-Jun Jeong, In-Kyu Hwang, In-Sung Cho, Hee-Soo Kim
    정상준, 황인규, 조인성, 김희수
    Korean J. Met. Mater. 2019;57(3):184-192.   Published online 2019 Feb 14
    DOI: https://doi.org/10.3365/KJMM.2019.57.3.184

    Abstract
    In this study, we analyzed the chemical composition of Al-Si cast alloys from microstructural images, using image recognition and machine learning. Binary Al-Si alloys of Si = 1~10 wt% were cast and prepared as reference images in the dataset used for machine learning. The machine learning procedure was constructed with..... More

                               Cited By 5
    396 Effect of Pre-Aging Treatment on Bake-Hardenability of Al-8.0Zn-2.5Mg-2.0Cu Alloy Sheet Fabricated by Twin-Roll Casting Process
    박판주조공정으로 제조한 Al-8.0Zn-2.5Mg-2.0Cu 합금 판재의 소부경화특성에 미치는 예비시효의 영향
    Ji-Goo Heo, Yun-Soo Lee, Min-Seok Kim, Hyoung-Wook Kim, Yang-Do Kim
    허지구, 이윤수, 김민석, 김형욱, 김양도
    Korean J. Met. Mater. 2019;57(6):396-404.   Published online 2019 May 16
    DOI: https://doi.org/10.3365/KJMM.2019.57.6.396

    Abstract
    The effects of natural and pre-aging on the microstructure and mechanical properties of Al-8.0Zn-2.5Mg-2.0Cu aluminum alloy sheet fabricated by twin roll casting were investigated. Immediately after solution treatment, the Al-8.0Zn-2.5Mg-2.0Cu alloy sheet had a yield strength of 173 MPa and elongation of 19.5%. The hardness of the Al-8.0Zn-2.5Mg-2.0Cu alloy sheet..... More

                               Cited By 5
    49 Synthesis and Characterization of the Cu0.72Co2.28O4 Catalyst for Oxygen Evolution Reaction in an Anion Exchange Membrane Water Electrolyzer
    음이온 교환막 수전해에 사용되는 Cu0.72Co2.28O4 산소 발생 촉매의 합성 및 특성 분석
    Sung Min Park, Myeong Je Jang, Yoo Sei Park, Jooyoung Lee, Jae-yeop Jeong, Jaehoon Jung, Min-Kwan Choi, Yu-Seong Noh, Min-Ho Seo, Hyung Ju Kim, Juchan Yang, Yang Do Kim, Sung Mook Choi
    박성민, 장명제, 박유세, 이주영, 정재엽, 정재훈, 최민관, 노유성, 서민호, 김형주, 양주찬, 김양도, 최승목
    Korean J. Met. Mater. 2020;58(1):49-58.   Published online 2019 Dec 12
    DOI: https://doi.org/10.3365/KJMM.2020.58.1.49

    Abstract
    In this study, we investigated the morphological, crystal structural, electronic structural, and electrocatalytic properties of the inverse spinel structured copper cobalt oxide (Cu0.72Co2.28O4) catalysts. The materials were prepared by coprecipitation using various copper and cobalt precursors, and subsequent oxidation treatment. Electron microscopy, X-ray diffraction, X-ray photoelectron spectroscopy, and Brunauer Emmett..... More

                               Cited By 5
    272 Solid-State Synthesis and Thermoelectric Properties of Tetrahedrites Cu12Sb4-yBiyS13
    Sung-Gyu Kwak, Ji-Hee Pi, Go-Eun Lee, Il-Ho Kim
    Korean J. Met. Mater. 2020;58(4):272-277.   Published online 2020 Mar 9
    DOI: https://doi.org/10.3365/KJMM.2020.58.4.272

    Abstract
    Tetrahedrite has low lattice thermal conductivity because of the lone-pair electrons of Sb, which cause the Cu atoms to vibrate at a low frequency and high amplitude. The synthesis of tetrahedrite compounds by conventional melting methods requires a long-time reaction and annealing. However, a homogeneous and solid-state synthesis can be..... More

                               Cited By 5
    1 Recent Progress in First Principle Calculation and High-Throughput Screening of Electrocatalysts: A Review
    전기화학촉매의 제일원리 계산 및 하이스루풋 스크리닝 연구 동향: 리뷰
    Changsoo Lee, Kihoon Bang, Doosun Hong, Hyuck Mo Lee
    이창수, 방기훈, 홍두선, 이혁모
    Korean J. Met. Mater. 2019;57(1):1-9.   Published online 2018 Dec 14
    DOI: https://doi.org/10.3365/KJMM.2019.57.1.1

    Abstract
    There are many ongoing efforts to develop sustainable, clean, efficient, and economical pathways to produce renewable energy sources to satisfy worldwide energy demands. Electrochemical conversion processes, such as water splitting, CO2 conversion and N2 electroreduction, have been considered as successful approaches to solve these energy issues. Over the past decade,..... More

                               Cited By 4
    77 Corrosion Resistance and Adhesion of Paint Coating Film on Zn-Mg-Al Hot-Dip Galvanized Steel Sheets
    아연-마그네슘-알루미늄 합금도금강판의 도장 내식성 및 밀착성
    Jae-Won Lee, Bora Park, Sung Jin Kim
    이재원, 박보라, 김성진
    Korean J. Met. Mater. 2019;57(2):77-83.   Published online 2019 Jan 9
    DOI: https://doi.org/10.3365/KJMM.2019.57.2.77

    Abstract
    Zn-Al-Mg alloy galvanized steel sheets have excellent corrosion resistance and improved cut-edge corrosion resistance. Most of the galvanized steel sheets used for outdoor applications are coated again on the galvanizing layer, or after a plastic film is laminated. As the corrosion products formed by the corrosion of Zn accumulate over..... More

                               Cited By 4
    84 Influence of the Thickness of TiO2/TiO2-x Layers on the Behavior of a Memristor Device
    TiO2/TiO2-x 박막층의 두께가 멤리스터 소자의 특성에 미치는 영향
    Han-Sang Kim, Sung-Jin Kim
    김한상, 김성진
    Korean J. Met. Mater. 2019;57(2):84-90.   Published online 2019 Feb 5
    DOI: https://doi.org/10.3365/KJMM.2019.57.2.84

    Abstract
    Memristors have been extensively investigated as the fourth fundamental circuit element. Titanium oxide is a common material used to fabricate memristors. In this paper, we investigated the influence of the thickness of the oxide active layer on the Al/TiO2-x/TiO2/heavily doped electrode memristor architecture. An insulating TiO2 thin-film was deposited using..... More

                               Cited By 4
    405 Effects of Molybdenum on HIC Susceptibility in Normalized Pressure Vessel Steels for Sour Service Applications
    Kijung Park, Dae Hyun Cho, Min-Ho Park, Cheol-Woong Yang
    Korean J. Met. Mater. 2019;57(7):405-411.   Published online 2019 Jun 5
    DOI: https://doi.org/10.3365/KJMM.2019.57.7.405

    Abstract
    This paper discusses a molybdenum-added alloy design for normalized pressure vessel steels, to reduce hydrogen induced cracking (HIC) and inhibit crack propagation. The change in microstructure produced by the modified alloy composition was analyzed to determine its effect on HIC characteristics. The microstructural change was observed by optical microscopy, hardness..... More

                               Cited By 4
    491 Hydrogen-Induced Cracking of Laser Beam and Gas Metal Arc Welds on API X65 Steel
    Junghoon Lee, Myeonghyun Kim, Yeongdo Park, Cheolho Park, Cheolhee Kim, Namhyun Kang
    Korean J. Met. Mater. 2019;57(8):491-498.   Published online 2019 Jul 11
    DOI: https://doi.org/10.3365/KJMM.2019.57.8.491

    Abstract
    Hydrogen-induced cracking (HIC) behavior was analyzed for gas metal arc (GMA) and laser beam (LB) welds on American Petroleum Institute (API) X65 steel. The GMA welds consisted of acicular ferrite (AF) with some widmanstatten ferrite (WF), while the LB welds had bainitic ferrite (BF) with some AF. The welds and..... More

                               Cited By 4
    673 Effect of Cu/In Doping on the Thermoelectric Transport Properties of Bi-Sb-Te Alloys
    Bi-Sb-Te계 합금의 열전물성에 대한 Cu 및 In 첨가 영향
    Hyun Jun Cho, Hyun-Sik Kim, Sang-Il Kim
    조현준, 김현식, 김상일
    Korean J. Met. Mater. 2019;57(10):673-678.   Published online 2019 Sep 23
    DOI: https://doi.org/10.3365/KJMM.2019.57.10.673

    Abstract
    Herein we report the effect of Cu/In doping on the electronic and thermal transport properties of Bi-Sb-Te thermoelectric alloys. To closely examine the role of each doping element when incorporated in a Bi0.4Sb1.6Te3 alloy, different groups of samples were prepared and characterized, including undoped Bi0.4Sb1.6Te3, In single-doped samples and In..... More

                               Cited By 4
    795 Optimization of ZnO/Cu/ZnO Flexible Transparent Conductive Electrodes Fabricated by Magnetron Sputtering
    마그네트론 스퍼터링법으로 제조된 ZnO/Cu/ZnO 유연 투명전극 성능 최적화 연구
    Daekyun Kim, Taehyeong Lee, Dooho Choi
    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..... More

                               Cited By 4
    787 Comparison of the Extraction and Stripping Behavior of Iron (III) from Weak Acidic Solution Between Ionic Liquids and Commercial Extractants
    Thanh Tuan Tran, Mudassir Iqbal, Man Seung Lee
    Korean J. Met. Mater. 2019;57(12):787-794.   Published online 2019 Nov 22
    DOI: https://doi.org/10.3365/KJMM.2019.57.12.787

    Abstract
    Fe(III) can be easily extracted from weak acidic solutions by organophosphorus extractants, but stripping a large amount of Fe(III) from the loaded extractants is very difficult. The extraction and stripping of Fe(III) from 2 pH chloride and sulfate solutions was performed with ionic liquids(ILs) and organophosphorus acidic extractants, and the..... More

                               Cited By 4
    293 Effect of Bainitic Microstructure on Low-Temperature Toughness of High-Strength API Pipeline Steels
    고강도 API 라인파이프강의 저온 인성에 미치는 베이나이트계 미세조직의 영향
    Seung-Wan Lee, Sang-In Lee, Byoungchul Hwang
    이승완, 이상인, 황병철
    Korean J. Met. Mater. 2020;58(5):293-303.   Published online 2020 Apr 20
    DOI: https://doi.org/10.3365/KJMM.2020.58.5.293

    Abstract
    In this study the correlation between bainitic microstructure and the low-temperature toughness of high-strength API pipeline steels was discussed in terms of crack initiation and propagation in the microstructure. Three types of API pipeline steels with different bainitic microstructures were fabricated using varying alloying elements and thermo-mechanical processing conditions, and..... More

                               Cited By 4
    660 Effect of Ni, C and Ti Addition on Shape Recovery Behavior and the Mechanical Properties of Fe-17Mn-5Si-5Cr Shape Memory Alloys
    Fe-17Mn-5Si-5Cr 형상기억합금의 형상복원거동 및 기계적 특성에 미치는 Ni, Ti 및 C의 영향
    Dohyoung Kim, Yonghwan Kim, Jeong-Jung Oak, Junghoon Lee, Chan Hee Park, Wookjin Lee, Yongho Park
    김도형, 김용환, 옥정중, 이정훈, 박찬희, 이욱진, 박용호
    Korean J. Met. Mater. 2020;58(10):660-671.   Published online 2020 Oct 5
    DOI: https://doi.org/10.3365/KJMM.2020.58.10.660

    Abstract
    Fe-Mn-Si based shape memory alloy is a new functional material that can be used to apply prestress to civil and structural components such as concrete structures. In this study, the effects of alloying elements Ni, C and Ti on the mechanical and shape memory properties of the alloy were investigated..... More

                               Cited By 4
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