Electrochemical production of Al-Sc alloy in CaCl2-Sc2O3 molten salt

被引：52

作者：

Harata, Masanori ^{[2
]}

Yasuda, Kouji ^{[1
]}

Yakushiji, Hiromasa ^{[3
]}

Okabe, Toru H. ^{[1
]}

机构：

[1] Univ Tokyo, Inst Ind Sci, Meguro Ku, Tokyo 1538505, Japan

[2] Univ Tokyo, Dept Mat Engn, Grad Sch Engn, Bunkyo Ku, Tokyo 1138656, Japan

[3] Pacific Metals Co Ltd, Tech Res & Dev Dept, Prod Div, Aomori 0318617, Japan

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2009年 / 474卷 / 1-2期

关键词：

Scandium; Al-Sc alloy; Molten salt; Electrolysis; SOLID SOLUBILITY; REDUCTION; SCANDIUM; RESISTIVITY; TITANIUM; POWDER; OXIDE;

D O I：

10.1016/j.jallcom.2008.06.110

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In order to develop a new production process for Al-Sc alloys, a fundamental study on the electrolysis in CaCl2-Sc2O3 melts was conducted using a small-scale laboratory cell. Al-Sc alloys were electrochemically produced by cathodically polarizing an Al liquid electrode in CaCl2-Sc2O3 melts at 1173 K. Metallic-colored spherical samples were produced by the electrolysis and were analyzed by XRD, EPMA, XRF, and ICP-AES. The electrolyzed samples consisted of Al and Al3Sc phases. The purity of the obtained Al-Sc alloys was greater than 99 mass%, and the calcium content was less than 0.65 mass%. This study demonstrates the feasibility of Al-Sc alloy production directly from Sc2O3 by electrochemical methods. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：124 / 130

页数：7

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