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n형 Mg
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열전소재의 오믹접합층 형성을 위한 고상접합기술
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주성재, 장정인, 손지희, 박종호, 김봉서, 민복기
Korean J. Met. Mater.
2025;63(1):60-67. Published online 2025 Jan 5
DOI:
https://doi.org/10.3365/KJMM.2025.63.1.60
Abstract
N-type Mg
3
Sb
2-x
Bi
x
materials are expected to replace n-type bismuth telluride because they are more abundant in the Earth's crust and lower in cost. However, the metallization process of this material, which is essential to develop modules, has been relatively under-researched. According to the literature, one-step sintering process based on powder.....
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Ni기 초내열합금 IN738LC의 응고속도와 열처리에 따른 미세조직 및 인장 특성
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김병훈, 공병욱, 주윤곤, 주영규, 홍현욱, 이재현
Korean J. Met. Mater.
2024;62(6):445-454. Published online 2024 May 31
DOI:
https://doi.org/10.3365/KJMM.2024.62.6.445
Abstract
The strength of Ni-base superalloys mainly depends on the γ' precipitates that improve the strength of the materials at high temperatures. The presence of γ' particles within the matrix restricts dislocation movement, and optimized heat treatments can tailor the size, shape, and volume fraction of γ'. In this study the.....
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고에너지 볼 밀링을 이용한 분산강화된 Fe-TaC 합금분말의 소결거동 및 기계적 특성평가
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박범순, 이정한, 박재철, 홍성길, 박현국
Korean J. Met. Mater.
2024;62(3):163-170. Published online 2024 Feb 28
DOI:
https://doi.org/10.3365/KJMM.2024.62.3.163
Abstract
In this study, a high-melting point element, tantalum carbide (TaC) was added to improve the mechanical properties and the oxidation/corrosion resistance of Fe. The Fe-TaC composites were synthesized by high energy ball milling for the mechanical alloying of the non-equilibrium phase (Fe-Ta) and the homogeneous dispersion of TaC. Fe-TaC composite.....
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Web of Science 2
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알루미늄 5052-H32 합금과 6014-T4 합금의 저항 점 용접 시 용접성 및 미세조직 비교
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전현욱, 김재훈, 김원호, 천주용, 배기만, 이은경, 박영도, 지창욱
Korean J. Met. Mater.
2024;62(1):1-11. Published online 2023 Dec 29
DOI:
https://doi.org/10.3365/KJMM.2024.62.1.1
Abstract
This study was performed to compare the resistance spot weldability of Al 5052-H32 alloy and Al 6014-T4 alloy, and the cause of the differences in the weldability was investigated. In general, the surface of the aluminum alloy has an oxide film several nm thick, and local heat input is generated.....
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Web of Science 2
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브레이크 마찰재의 마찰특성에 미치는 부식 환경의 영향
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신희섭, 김율구, 이상목
Korean J. Met. Mater.
2023;61(12):943-950. Published online 2023 Nov 30
DOI:
https://doi.org/10.3365/KJMM.2023.61.12.943
Abstract
The friction properties of brake friction materials are investigated utilizing the different car cleaners. Water, wheel cleaner and tire dressing were used to designate driving conditions in the field. The friction materials were soaked in each solution before friction test. The Coefficient of friction (COF) was similar in the case.....
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Korean J. Met. Mater.
2023;61(3):157-169. Published online 2023 Feb 24
DOI:
https://doi.org/10.3365/KJMM.2023.61.3.157
Abstract
Carbon-based thin film tool coatings, such as diamond-like carbon (DLC), have excellent lowfriction and anti-sticking properties. These thin films are widely used for the cutting and machining of increasingly widely-used lightweight non-metallic and non-ferrous metal materials, as a part of countermeasures against global warming. However, non-metallic and non-ferrous metal materials.....
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Web of Science 3
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인공지능을 기반으로 한 대면적 CNT 기반 촉각 센서의 실시간 위치 탐색 연구
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조민영, 김성훈, 김지식
Korean J. Met. Mater.
2022;60(10):793-799. Published online 2022 Sep 29
DOI:
https://doi.org/10.3365/KJMM.2022.60.10.793
Abstract
For medical device and artificial skin applications, etc., large-area tactile sensors have attracted strong interest as a key technology. However, only complex and expensive manufacturing methods such as fine pattern alignment technology have been considered. To replace the existing smart sensor, which has to go through a complicated process, a.....
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Web of Science 2
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Ba-Sr-Co-Fe 산화물과 La-Sr-Mn 산화물 양극을 포함하는 Ni-Fe 기반 금속지지형 고체산화물 연료전지의 전기화학적 성능
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이상은, 박준서, 박희정
Korean J. Met. Mater.
2022;60(7):523-530. Published online 2022 Jun 3
DOI:
https://doi.org/10.3365/KJMM.2022.60.7.523
Abstract
Unlike conventional solid oxide fuel cells (SOFCs) where ceramic materials have been used as a support, in this study a new SOFC structure with a metal support and a contact layer between the support and anode is suggested. A mixture of Ni-Fe alloy and zirconia ceramics as the contact layer.....
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Web of Science 1
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Korean J. Met. Mater.
2022;60(3):198-205. Published online 2022 Feb 8
DOI:
https://doi.org/10.3365/KJMM.2022.60.3.198
Abstract
In this study, we demonstrate high-performance optical wavelength-selective organic thin-film transistors (TFTs) that incorporate heterogeneous organic semiconductor materials, poly(3-hexylthiophene) (P3HT) and 6,13-bis(triisopropylsilylethynyl) pentacene (TIPS-pentacene). The electrical characteristics of the fabricated transistors were analyzed in the dark to determine how the P3HT:TIPS-pentacene ratio of the semiconductor affected the performance of the.....
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Web of Science 3
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Korean J. Met. Mater.
2021;59(12):904-910. Published online 2021 Nov 19
DOI:
https://doi.org/10.3365/KJMM.2021.59.12.904
Abstract
In this study, half-Heusler (HH) thermoelectric materials Nb
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FeSb
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Sn
0.02
(p-type) and Hf
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NiSn
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Sb
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(n-type) were synthesized using induction melting and spark plasma sintering. For alloying, a conventional induction melting technique was employed rather than arc melting, for mass production compatibility, and the thermoelectric properties of the materials were analyzed. The maximum dimensionless.....
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Web of Science 3
Crossref 2
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Korean J. Met. Mater.
2020;58(8):560-565. Published online 2020 Jul 27
DOI:
https://doi.org/10.3365/KJMM.2020.58.8.560
Abstract
This study investigated the influence of laser shock peening without coating (LSPw/oC) on the degradation of copper electrical contacts. A theoretical calculation of the plastic-affected depth (PAD) induced by LSPw/oC was performed, based on the laser-induced plasma pressure along with the Hugoniot elastic limit of our LSPw/oC experimental conditions. The.....
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Korean J. Met. Mater.
2017;55(9):624-631. Published online 2017 Aug 30
DOI:
https://doi.org/10.3365/KJMM.2017.55.9.624
Abstract
The wetting behavior of liquids on solid surfaces is important in the study of surfaces and interfaces. In this study, the wetting behavior of deionized (DI) water and hexadecane on fluorinated and micro-patterned polymer surfaces was investigated. The sample surfaces were processed by spray coating and thermal imprinting, respectively. The.....
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