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Article
Liquid metal extraction of Nd from NdFeB magnet scrap
Journal of Materials Research
  • Y. Xu, Iowa State University
  • L. Scott Chumbley, Iowa State University
  • F. C. Laabs, Iowa State University
Document Type
Article
Disciplines
Publication Date
11-1-2000
DOI
10.1557/JMR.2000.0330
Abstract

This research involves using molten magnesium (Mg) to remove neodymium (Nd) from NdFeB magnet scrap by diffusion. Mg was melted over pieces of NdFeB scrap and held at temperatures in the range 675–705 °C for 2–8 h. The Mg was allowed to solidify, and the castings were then sectioned and characterized using scanning electron microscopy, x-ray diffraction, and chemical analysis. Nd was found to have diffused out of the solid scrap into the molten Mg. The thickness of the diffusion layer was measured, the diffusion of Nd through the NdFeB scrap into liquid Mg was described, and the diffusion coefficient of Nd in liquid Mg was estimated.

Comments

This article is from Journal of Materials Research 15 (2000): 2296-2304, doi: 10.1557/JMR.2000.0330. Posted with permission.

Copyright Owner
Materials Research Society
Language
en
Date Available
2014-09-09
File Format
application/pdf
Citation Information
Y. Xu, L. Scott Chumbley and F. C. Laabs. "Liquid metal extraction of Nd from NdFeB magnet scrap" Journal of Materials Research Vol. 15 Iss. 11 (2000) p. 2296 - 2304
Available at: http://works.bepress.com/l_chumbley/11/