Deoxidation of Neodymium by Halide Flux Treatment

• Sano Hiroyuki

  Department of Materials Science and Engineering, Graduate School of Engineering, Nagoya University

• Tashiro Masami

  Department of Materials Science and Engineering, Graduate School of Engineering, Nagoya University

• Fujisawa Toshiharu

  Department of Materials Science and Engineering, Graduate School of Engineering, Nagoya University

• Yamauchi Chikabumi

  Department of Materials Science and Engineering, Graduate School of Engineering, Nagoya University

Abstract

Rare-earth metals usually contain large amounts of oxygen because of their reactiveness, and therefore oxygen removal is one of the major problems in the purification of rare-earth metals. In the present work, a halide flux treatment at high temperatures under an inert gas atmosphere was applied for the deoxidation of neodymium. NdF₃ was used as a halide flux. The deoxidation reaction and its mechanism were discussed based on the experimental results. It was clarified that the halide flux treatment is very effective for the deoxidation of rare earth metals.

Journal

• Materials Transactions, JIM

  Materials Transactions, JIM 40 (4), 263-267, 1999

  The Japan Institute of Metals

Keywords

• halide
• flux treatment
• purification
• deoxidation
• Nd–NdF<SUB>3</SUB>–Nd<SUB>2</SUB>O<SUB>3</SUB> quasi-ternary system
• oxygen
• neodymium
• rare earth metals

Details

• CRID: 1390001204246526464
• NII Article ID: 10003805993
• NII Book ID: AA10699969
• DOI: 10.2320/matertrans1989.40.263
• COI: 1:CAS:528:DyaK1MXktFantr8%3D
• ISSN: 2432471X
• ISSN: 09161821
• NDL BIB ID: 4718839
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4718839
• Web Site: https://www.jstage.jst.go.jp/article/matertrans1989/40/4/40_4_263/_pdf
• Text Lang: en
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed