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Korean J. Met. Mater.
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Korean Journal of Metals and Materials
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Korean J. Met. Mater.
2025;63(6):437-452. Published online 2025 Jun 5
DOI:
https://doi.org/10.3365/KJMM.2025.63.6.437
Abstract
Gas sensors are crucial devices in various fields such as industrial safety, environmental monitoring, gas infrastructure including hydrogen use, and medical diagnostics. These sensors precisely measure the presence of gases on-site in different environments to ensure operational safety and efficiency. Designed for high sensitivity, stability, and reliability, gas sensors are.....
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수위의 이미지 분석 알고리즘을 이용한 충전제가 함유된 황가교 EPDM 고분자 복합체의 수소 기체 충전량 및 확산도 측정 방법
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이지훈, 전상구, 최명찬, 김승연
Korean J. Met. Mater.
2025;63(4):291-304. Published online 2025 Apr 5
DOI:
https://doi.org/10.3365/KJMM.2025.63.4.291
Abstract
In hydrogen refueling stations, polymer O-rings are used for high-pressure hydrogen containers and transfer pipes to prevent gas leakage. A technology has been developed to measure the hydrogen uptake and diffusivity of the polymer materials used in these O-rings. The process involves charging the polymer material with hydrogen under a.....
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Korean J. Met. Mater.
2024;62(1):57-64. Published online 2023 Dec 29
DOI:
https://doi.org/10.3365/KJMM.2024.62.1.57
Abstract
Carbon fiber reinforced polymer (CFRP) has been extensively used in civil engineering for applications such as reinforcing and retrofitting various architectural materials. Therefore, understanding the degradation of CFRP under high temperatures is important. This study aims to investigate the thermomechanical and microstructural properties of CFRP plates at elevated temperatures up.....
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Web of Science 1
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Korean J. Met. Mater.
2023;61(10):800-806. Published online 2023 Sep 25
DOI:
https://doi.org/10.3365/KJMM.2023.61.10.800
Abstract
Glass fiber-reinforced polymers (GFRPs) have attracted significant attention as structural materials because of their high fatigue resistance, corrosion resistance, strength, and stiffness. This study examined the effect of elevated temperatures (150, 250, 350, and 450oC) on the microstructural and mechanical properties of GFRP plates. The number of bubbles increased as.....
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Web of Science 2
Crossref 2
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압력 센서용 탄소 나노 튜브 폴리머 복합체의 필러 함량과 종횡비에 따른 압저항 특성
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유종찬, 김동영, 이동관, 남건우, 박성훈
Korean J. Met. Mater.
2023;61(10):793-799. Published online 2023 Sep 25
DOI:
https://doi.org/10.3365/KJMM.2023.61.10.793
Abstract
Polymer composites enriched with conductive fillers hold immense potential for flexible pressure sensors, because of the remarkable piezoresistive effect they possess. Research on polymer composite pressure sensors has been actively ongoing because of their flexibility and high electrical resistance performance. This paper presents a comprehensive comparison of the piezoresistive characteristics.....
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Web of Science 1
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Korean J. Met. Mater.
2023;61(8):616-624. Published online 2023 Jul 20
DOI:
https://doi.org/10.3365/KJMM.2023.61.8.616
Abstract
Lithium-ion batteries (LIBs) have undergone countless enhancements in the past decade, mainly improvements in the basic components: electrodes, electrolyte, and separator. The separator, which acts as a physical barrier between the two electrodes, does not directly participate in the charge and energy storage. However, it is involved in the safety, form.....
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Web of Science 2
Crossref 2
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Korean J. Met. Mater.
2022;60(1):68-75. Published online 2021 Dec 10
DOI:
https://doi.org/10.3365/KJMM.2022.60.1.68
Abstract
A copper (Cu) metal-ceramic filler composite with high thermal conductivity and a suitable thermal expansion coefficient was designed for application as a high-performance heat dissipation material. The purpose of the designed material was to utilize the high thermal conductivity of Cu while lowering its high coefficient of thermal expansion by.....
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Korean J. Met. Mater.
2019;57(5):289-294. Published online 2019 May 5
DOI:
https://doi.org/10.3365/KJMM.2019.57.5.289
Abstract
In this study, we characterize the viscoelastic behavior of polymers using nanoindentation. We applied the indentation representative stress approach and elastic solution to the Maxwell model and determined that there was a linear relationship between the inverses of the initial unloading stiffness and indentation unloading rate. From nanoindentation tests with.....
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Web of Science 5
Crossref 4
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Korean J. Met. Mater.
2018;56(12):878-884. Published online 2018 Dec 5
DOI:
https://doi.org/10.3365/KJMM.2018.56.12.878
Abstract
In the present work, we selected a polymer, polyvinylidene fluoride (PVDF), as an additive to improve the hydrogenation and dehydrogenation properties of Mg. 95 wt% Mg + 5 wt% PVDF (designated Mg-5PVDF) samples were prepared via milling in hydrogen atmosphere (reactive milling), and the hydrogenation and dehydrogenation characteristics of the.....
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Crossref 5
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Korean J. Met. Mater.
2018;56(8):620-627. Published online 2018 Aug 5
DOI:
https://doi.org/10.3365/KJMM.2018.56.8.620
Abstract
In our previous work, samples with a composition of 95 wt% Mg + 5 wt% CMC (Carboxymethylcellulose, Sodium Salt, [C
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Crossref 5
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Korean J. Met. Mater.
2018;56(5):392-399. Published online 2018 May 8
DOI:
https://doi.org/10.3365/KJMM.2018.56.5.392
Abstract
The addition of CMC (Carboxymethylcellulose, Sodium Salt) may improve the hydriding and dehydriding properties of Mg since it has a relatively low melting point and the melting of CMC during transformation-involving milling may put the milled samples in good states to absorb and release hydrogen rapidly. Samples with compositions of.....
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Crossref 6
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