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Korean J. Met. Mater.
2024;62(4):292-298. Published online 2024 Mar 29
DOI:
https://doi.org/10.3365/KJMM.2024.62.4.292
Abstract
Poly(3-hexylthiophene) (P3HT), a semiconducting polymer, is integral to the development of organic electronic devices. Its optoelectronic properties are significantly influenced by the nature of its intermolecular interactions, predominantly classified as J-type and H-type couplings. This study investigates the effect of sonication on the dielectric properties of P3HT, focusing on the.....
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진공 브레이징을 통해 제조한 TiAl/HI-TEMP 820/SCM440H 재료의 공정 온도에 따른 미세조직 및 기계적 특성 평가
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유상규, 김지원, 이초롱, 오명훈, 최인철
Korean J. Met. Mater.
2024;62(3):229-238. Published online 2024 Feb 28
DOI:
https://doi.org/10.3365/KJMM.2024.62.3.229
Abstract
The TiAl alloy is attracting attention as a lightweight and heat-resistant material, because of its high specific strength, excellent high-temperature formability, and fatigue strength. However, its applications are limited by its high unit price and low room temperature ductility. To overcome this issue, dissimilarly bonded materials have been extensively employed......
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반데르발스 소재 기반의 태양전지 적용에 관한 최신 연구동향 리뷰
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박형기, 이재현, 허근
Korean J. Met. Mater.
2024;62(2):154-161. Published online 2024 Jan 30
DOI:
https://doi.org/10.3365/KJMM.2024.62.2.154
Abstract
In recent years, the exploration of van der Waals materials has taken center stage in the field of advanced materials research. Studies have delved deeply into the multifaceted characteristics of these materials, and in particular their potential applications in solar cell technology. Van der Waals materials, named after the unique.....
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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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코발트 산화물 리튬 이온 배터리 용량 및 사이클 안정성에 대한 코발트 산화물/첨가제 계면 및 결정립 크기의 영향
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박병남
Korean J. Met. Mater.
2022;60(6):448-454. Published online 2022 May 24
DOI:
https://doi.org/10.3365/KJMM.2022.60.6.448
Abstract
Due to its high theoretical capacity in the conversion reaction, Co
3
O
4
, a transition metal oxide, has been attracting attention as an anode material for lithium-ion batteries. Comparing conventional slurry method with the electrophoretic deposition (EPD) method without additives (conductive agents and binders), we investigated the effect of the Co
3
O
4
/additive interface.....
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높은 전류밀도에서 리튬이온배터리의 사이클 성능 향상을 위한 세라믹 코팅 분리막 연구
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조규상, 찬드라 발라무루간, 임하나, 김형진
Korean J. Met. Mater.
2021;59(11):813-820. Published online 2021 Oct 28
DOI:
https://doi.org/10.3365/KJMM.2021.59.11.813
Abstract
Given the global demand for green energy, the battery industry is positioned to be an important future technology. Lithium-ion batteries (LIBs), which are the most widely used battery in the market, are the focus of various research and development efforts, from materials to systems, that seek to improve their.....
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Web of Science 3
Crossref 3
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환원 그래핀 산화물을 이용하여 계면제어된
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형 Bismuth Telluride Selenide 복합체의 열전수송특성에 대한 연구
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황의경, 임영수
Korean J. Met. Mater.
2019;57(9):603-608. Published online 2019 Aug 21
DOI:
https://doi.org/10.3365/KJMM.2019.57.9.603
Abstract
We report the effect of interface control using reduced graphene oxide (RGO) on the thermoelectric transport properties of Bi
2
Te
2.7
Se
0.3
(BTS)-RGO composites. The interface-controlled BTS-RGO composites were prepared by the consolidation of BTS-RGO hybrid powders using spark plasma sintering (SPS). The RGO-hybridization reduced the grain size in the BTS-RGO composites because.....
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Web of Science 5
Crossref 5
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4점 탐침 측정법을 이용한 고상전해질계면의 비저항 측정
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박준형, 최용석, 심형철, 안재평, 이재철
Korean J. Met. Mater.
2019;57(1):67-70. Published online 2018 Dec 14
DOI:
https://doi.org/10.3365/KJMM.2019.57.1.67
Abstract
Lack of understanding on the electrical properties of the solid electrolyte interface (SEI) has been one of the major hurdles for developing fast charging Li-ion batteries. Here, we report our preliminary experimental result on the measurement of the electrical resistivity of SEI using the direct-contact technique based on electron microscopy.....
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Web of Science 2
Crossref 2
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다중벽 탄소나노튜브를 이용한 계면제어가 TiO
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나노복합체의 열전특성에 미치는 영향
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남우현, 임영수
Korean J. Met. Mater.
2018;56(7):538-543. Published online 2018 Jul 5
DOI:
https://doi.org/10.3365/KJMM.2018.56.7.538
Abstract
We report the effect of interface control using multiwalled carbon nanotubes (MWCNT) on thermoelectric properties of TiO
2
. By consolidating TiO
2
nanoparticles with MWCNT (0.5, 1, 2, 4, and 8 wt%) using spark plasma sintering, we prepared interface-controlled TiO
2
-MWCNT nanocomposites, where TiO
2
grains were surrounded with a MWCNT network. Simultaneous control of.....
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Crossref 1
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이상태, 임영수
Korean J. Met. Mater.
2018;56(2):163-169. Published online 2018 Feb 5
DOI:
https://doi.org/10.3365/KJMM.2018.56.2.163
Abstract
We report the effects of interface control using reduced graphene oxide (RGO) on the thermoelectric transport properties of polycrystalline SnSe compounds. Polycrystalline SnSe-RGO composites were prepared by the consolidation of SnSe powder coated with the RGO by hot pressing, and the RGO content was controlled to be 0, 0.2, 0.5.....
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2층금속 클래드메탈의 두께방향으로 섬광법 적용 열전도도 측정과 예측모델 연구
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김종구, 주재훈, 김동용, 박성혁, 조영래
Korean J. Met. Mater.
2017;55(7):523-528. Published online 2017 Jul 4
DOI:
https://doi.org/10.3365/KJMM.2017.55.7.523
Abstract
Heat transfer plays a critical role in the fabrication of high efficiency electronic devices. Double-layer clad metals consisting of stainless steel (STS) and aluminum (Al) alloy were fabricated by the roll bonding process, and their thermal conductivity was calculated using measurements of density, specific heat, and thermal diffusivity obtained by.....
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Crossref 3
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TiC-SKD11 함침 복합재의 온도에 따른 인장 특성과 파괴거동 변화
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오누리, 이상관, 조승찬, 조일국, 황금철, 김대하, 조영태, 서동우, 홍현욱
Korean J. Met. Mater.
2017;55(3):156-164. Published online 2017 Mar 3
DOI:
https://doi.org/10.3365/KJMM.2017.55.3.156
Abstract
A composite having 60 vol% of TiC particles was successfully fabricated by the infiltration of molten SKD11 tool steel into a TiC preform. The density of this composite was achieved to be 25% lighter than conventional steels. The penetration of the liquid metal reached geometrically complex regions without any interfacial.....
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