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Korean J. Met. Mater.
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Korean Journal of Metals and Materials
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Zn-ion 배터리용 ZnMn
2
O
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양극재의 입자 크기 증가를 통한 Mn
3+
용출 완화로 수명 증가
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박재영, 최영묵, 전상은
Korean J. Met. Mater.
2023;61(12):923-932. Published online 2023 Nov 30
DOI:
https://doi.org/10.3365/KJMM.2023.61.12.923
Abstract
ZnMn
2
O
4
(ZMO) cathode possesses a high theoretical capacity of 224 mAh g
-1
and high operating voltage (1.9 V vs. Zn
2+
/Zn) for aqueous Zn–ion batteries. However, the disproportionation reaction of Mn
3+
leads to Mn dissolution in the ZMO cathode, deteriorating lifespan. In this study, we attempted to reduce Mn dissolution by.....
More
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실리카 나노입자의 분산도가 주형의 항절강도에 미치는 영향
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김판성, 배민아, 백재호, 제정호, 이만식
Korean J. Met. Mater.
2022;60(6):478-487. Published online 2022 May 24
DOI:
https://doi.org/10.3365/KJMM.2022.60.6.478
Abstract
Sodium silicate solutions are used as an eco-friendly binder in the casting process. However, the strength of sand molds using the sodium silicate solutions is reduced because of their low humidity resistance. In this study, silica nanoparticles were added to a sodium silicate solution with a constant SiO
2
/Na
2
O ratio to.....
More
Crossref 2
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Korean J. Met. Mater.
2022;60(6):409-422. Published online 2022 May 24
DOI:
https://doi.org/10.3365/KJMM.2022.60.6.409
Abstract
In the present study, monodisperse silica nanospheres were synthesized using a tubular reaction system in a continuous way. Screw-type blades were inserted inside a T-mixer for static mixing of the reactant streams which consisted of TEOS and NH
4
OH/H
2
O diluted with ethanol, for the continuous synthesis of the silica suspension. The.....
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단일 크기와 이중 크기의 탄화규소 입자를 이용한 액상소결 탄화규소의 기계적 특성
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이준엽, 이상필, 이진경, 이문희, 황승국
Korean J. Met. Mater.
2019;57(1):60-66. Published online 2018 Dec 14
DOI:
https://doi.org/10.3365/KJMM.2019.57.1.60
Abstract
Both the mechanical properties and probability distribution of liquid phase sintered SiC (LPS-SiC) materials were investigated, based on a detailed analysis of their microstructures. In particular, the effect of the starting sizes of SiC particles on the characterization of LPS-SiC materials was evaluated. LPS-SiC materials were fabricated with a constant.....
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Web of Science 2
Crossref 2
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초 고온･고압 소결된 다결정 다이아몬드 컴팩트의 미세조직 및 마모 특성에 미치는 다이아몬드 입자 크기의 영향
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백민석, 박희섭, 이재일, 이기안
Korean J. Met. Mater.
2017;55(11):790-797. Published online 2017 Oct 31
DOI:
https://doi.org/10.3365/KJMM.2017.55.11.790
Abstract
A polycrystalline diamond compact (PDC) is a two-stage sintered body manufactured by placing diamond powders on a WC-Co hard material and then applying the high pressure high temperature (HPHT) sintering process. This study investigated the microstructure and wear properties of the PDC depending on initial diamond particle size. Three different.....
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