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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.
2024;62(4):306-311. Published online 2024 Mar 29
DOI:
https://doi.org/10.3365/KJMM.2024.62.4.306
Abstract
In this study, we enhanced the flexural strength of cordierite ceramics by incorporating h-BN (hexagonal boron nitride) nanoparticles, facilitated by the slip casting process. Initially, commercial cordierite powder with an average particle size of 10 mm underwent a ball-milling process to reduce the size to 2.5 mm and simultaneously achieve.....
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DC 마그네트론 스퍼터링에서 입방정 질화붕소 박막의 증착 거동에 미치는 이온 플럭스 변화의 영향
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최영환, 허주열, 백영준
Korean J. Met. Mater.
2023;61(11):824-829. Published online 2023 Oct 29
DOI:
https://doi.org/10.3365/KJMM.2023.61.11.824
Abstract
Cubic boron nitride (cBN) thin films were deposited using DC magnetron sputtering, and the effect of the ion flux on the deposition behavior and residual stress of the cBN thin films was investigated. To increase the ion flux, the magnetic force ratio of the central/peripheral permanent magnets inserted in the.....
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가솔린 터보차저용 Alloy1.4957 내열강의 석출 상 분석
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이종관, 이병주, 이언식
Korean J. Met. Mater.
2023;61(10):721-728. Published online 2023 Sep 25
DOI:
https://doi.org/10.3365/KJMM.2023.61.10.721
Abstract
Recently, strengthened environmental regulations have required the downsizing of gasoline engines, and as a result, demand for gasoline turbochargers has rapidly increased. The vane of a turbocharger controls the flow of gases toward the turbine, and it is manufactured by powder metallurgy due to its complex shape. Gasoline engines have.....
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Korean J. Met. Mater.
2021;59(7):505-513. Published online 2021 Jun 16
DOI:
https://doi.org/10.3365/KJMM.2021.59.7.505
Abstract
A three-dimensionally interconnected hexagonal boron nitride (3Di-hBN) networked Cu-Ni (3DihBN-Cu-Ni) composite was successfully synthesized in situ using a simple two-step process which involved the compaction of mixed Cu-Ni powders (70 wt.% Cu and 30 wt.% Ni) into a disc followed by metal-organic chemical vapor deposition (MOCVD) at 1000
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Web of Science 1
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레이저 가공 기반 사출 금형강의 선택적 표면 개질 연구: 레이저 나이트라이딩에 따른 AlN 형성 및 경화 거동
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천은준, 박창규, 박원아
Korean J. Met. Mater.
2020;58(1):32-40. Published online 2019 Dec 12
DOI:
https://doi.org/10.3365/KJMM.2020.58.1.32
Abstract
Laser surface heat treatment and laser nitriding processes were applied using selective surface modification techniques to investigate phase transformation, microstructural evolution, and surface hardening behaviors for two types of plastic injection mold steels, AISI 1045 and P21. During laser surface heat treatment, a 245% hardness increase compared to that of.....
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Web of Science 4
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Korean J. Met. Mater.
2019;57(9):582-588. Published online 2019 Aug 21
DOI:
https://doi.org/10.3365/KJMM.2019.57.9.582
Abstract
Chemical mechanical polishing (CMP) of bulk AlN was performed with colloidal silica slurry at pH 9 for different times. The result shows that colloidal silica slurry at pH 9, which has the relatively high surface charge of -50.7 mV is most stable, and it was selected as chemically optimum condition.....
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Web of Science 4
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나노스케일 질화규소 멤브레인의 기계적, 열적 특성 분석
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장용주, 신현진, 위성주, 김하늘, 이기성, 안진호
Korean J. Met. Mater.
2019;57(2):124-129. Published online 2019 Jan 9
DOI:
https://doi.org/10.3365/KJMM.2019.57.2.124
Abstract
In micro/nano electro-mechanical system, silicon nitride (SiNx) membrane has been widely used in sensors, energy harvesting and optical filters because of its mechanical/chemical stability. However, it is necessary to verify mechanical and thermal properties of nanoscale SiNx membranes to ensure the desirable reliability and durability of a device because the.....
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Web of Science 5
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산질화처리가 저탄소강의 미세조직과 나노경도 및 부식특성에 미치는 영향
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조영욱, 원종호, 우정호, 유상호, 조영래
Korean J. Met. Mater.
2018;56(4):289-295. Published online 2018 Apr 5
DOI:
https://doi.org/10.3365/KJMM.2018.56.4.289
Abstract
Oxi-nitrocarburizing treatment was performed to improve the anti-corrosion and anti-wear properties of low carbon steels. The oxi-nitrocarburizing was carried out in 2 steps: a gas nitrocarburizing step at 560 ℃ and an oxidation step at 550 ℃ for 30 min with steamed water. The mechanical and chemical properties of the.....
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Crossref 1
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