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Korean J. Met. Mater.
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Korean Journal of Metals and Materials
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김기범, 최택집, 이태경,
Korean J. Met. Mater.
2022;60(9):654-667. Published online 2022 Aug 30
DOI:
https://doi.org/10.3365/KJMM.2022.60.9.654
Abstract
This study investigated the microstructure and mechanical properties of Mg-1Gd-1Y-1Zn (at.%) alloys containing designed amounts of Ce or La. The Mg
5
(Gd,Zn) phase formed in the as-cast Mg-Gd-Y-Zn-Ce/La alloys and disappeared after a homogenization treatment at 500°C for 24 h. The addition of Ce and La resulted in the formation of.....
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영구자석 재료의 개발현황 및 향후 발전방향
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최철진, 박지훈, 임정태, 김종우
Korean J. Met. Mater.
2021;59(11):761-768. Published online 2021 Oct 28
DOI:
https://doi.org/10.3365/KJMM.2021.59.11.761
Abstract
Permanent magnetic materials are essential for converting mechanical and electric energy, and are needed in electric vehicles, electronics, wind turbines, and etc. However, high performance rare-earth element based magnets have many limitations, including critical materials problems and the degradation of magnetic properties at elevated temperatures. There has been increasing international.....
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폐형광체 분말로부터 희토류의 회수를 위한 침출 특성 고찰
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이기헌, 김창권, 이동훈, 송영준
Korean J. Met. Mater.
2021;59(7):459-468. Published online 2021 Jun 16
DOI:
https://doi.org/10.3365/KJMM.2021.59.7.459
Abstract
This study was carried out to obtain data to design a process to recover rare earth elements, specifically Y(Yttrium), La(Lanthanum), Ce(Cerium), Eu(Europium), Tb(Terbium) from waste phosphor powder. For this purpose, we investigated the effect of temperature, concentration, time and acids on leaching of the rare earth elements. The effect of.....
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Web of Science 1
Crossref 2
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Korean J. Met. Mater.
2018;56(10):763-771. Published online 2018 Oct 5
DOI:
https://doi.org/10.3365/KJMM.2018.56.10.763
Abstract
The present paper deals with liquid-liquid extraction studies and the possible separation of light rare earths (LREs) from chloride solutions. Aromatic diluents such as benzene, toluene and xylene were tested for LREs extraction and possible separation from chloride solutions. Bis(2,4,4-triethylpentyl)phosphinic acid (trade name Cyanex
®
272) was used as an extractant.....
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Crossref 3
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Cyanex 572와 PC88A를 사용하여 Pr 및 Nd 분리 시 향류추출 공정 비교
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이주은, 소홍일, 조연철, 안재우, 김홍인, 이진영
Korean J. Met. Mater.
2018;56(8):597-604. Published online 2018 Aug 5
DOI:
https://doi.org/10.3365/KJMM.2018.56.8.597
Abstract
This study designed a counter current extraction process for comparing the separation efficiencies that are obtained using Cyanex 572 and PC88A for the elements in a Pr and Nd mixed solution. This process involves multiple extraction and scrubbing processes using a mixer settler. The process parameters are calculated using an.....
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Crossref 1
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경희토류 혼합용액에서 PC88A와 Cyanex 572에 의한 La, Ce, Pr, Nd, Sm의 추출·분리 거동 비교
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조연철, 이주은, 소홍일, 안재우, 김홍인, 이진영
Korean J. Met. Mater.
2018;56(2):146-154. Published online 2018 Feb 5
DOI:
https://doi.org/10.3365/KJMM.2018.56.2.146
Abstract
Solvent extraction of La, Ce, Pr, Nd and Sm from chloride solutions was studied using PC88A and Cyanex 572 as the extractants. Our results indicated that the acidity of the aqueous solution and saponification degree had some effect on the percentage extraction of metal ions. The distribution coefficient of the.....
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