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Park, Jaeyeong
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  • Radioactive waste treatment and management; Spent nuclear fuel recycling; Decontamination and Decommissioning; Nuclear Fuel Cycle

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Spatial distribution of HfBi in metallurgically and electrochemically formed Bi-Hf alloy

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dc.contributor.author Sohn, Sungjune ko
dc.contributor.author Jeong, Gwan Yoon ko
dc.contributor.author Hur, Jungho ko
dc.contributor.author Jeong, Seongjin ko
dc.contributor.author Park, Jaeyeong ko
dc.contributor.author Hwang, Il Soon ko
dc.date.available 2019-05-14T06:43:46Z -
dc.date.created 2019-03-15 ko
dc.date.issued 2019-06 ko
dc.identifier.citation JOURNAL OF ALLOYS AND COMPOUNDS, v.790, pp.772 - 782 ko
dc.identifier.issn 0925-8388 ko
dc.identifier.uri https://scholarworks.unist.ac.kr/handle/201301/26617 -
dc.description.abstract This study presents the spatial distribution of HfBi intermetallic compound in Bi-Hf alloy formed by potentiostatic electrodeposition to investigate the feasibility of density-based separation between Zr and Hf in liquid Bi phase. Prior to electrochemical alloy formation, four Bi-Hf alloys were produced metallurgically with the consideration of the Hf concentration in the alloy and the mixing effect on the liquid Bi. Then electrochemical behaviors of HfCl4 in LiCl-KCl was investigated by cyclic voltammetry (CV) using tungsten and Bi coated electrode at 500 °C. The apparent reduction potential and diffusion coefficient were calculated by determination of reversibility for single redox Hf4+/Hf reaction. Two Bi-Hf alloys were produced by potentiostatic electrodeposition in LiCl-KCl-HfCl4/Bi system at 500 °C. Applied cathodic potential of −1.1 V vs. Ag/AgCl 1 wt % was determined from the CV results. The spatial distribution of intermetallic compound was obtained on the vertical cross section of Bi-Hf alloys. HfBi phase was characterized by SEM-EDS and XRD analysis. It is identified that HfBi was clearly formed and precipitated in the bottom of the Bi-Hf alloy during the electrodeposition, supporting the possibility of the separation of Hf from Zr by their density differences. ko
dc.language 영어 ko
dc.publisher ELSEVIER SCIENCE SA ko
dc.title Spatial distribution of HfBi in metallurgically and electrochemically formed Bi-Hf alloy ko
dc.type ARTICLE ko
dc.identifier.scopusid 2-s2.0-85063225914 ko
dc.identifier.wosid 000464663600088 ko
dc.type.rims ART ko
dc.identifier.doi 10.1016/j.jallcom.2019.03.174 ko
dc.identifier.url https://www.sciencedirect.com/science/article/pii/S0925838819309879 ko
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