Effects of Zr Substitution in NdFeB Permanent Magnets

Effects of Zr Substitution in NdFeB Permanent Magnets

Microstructural analyses and the results of magnetic measurements performed on the Nd15Fe77B8 and Nd12.7Fe81B6Zr0.3 (at.%) sintered magnets are presented. These compounds crystallize in the tetragonal Nd2Fe14B structure. The Nd2Fe17 phase developed in the Zr-containing magnet and decreased the coerc...

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1. Verfasser: Shaaban, A
Format: Tagungsbericht
Sprache:eng
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Zusammenfassung:Microstructural analyses and the results of magnetic measurements performed on the Nd15Fe77B8 and Nd12.7Fe81B6Zr0.3 (at.%) sintered magnets are presented. These compounds crystallize in the tetragonal Nd2Fe14B structure. The Nd2Fe17 phase developed in the Zr-containing magnet and decreased the coercivity. A small amount of zirconium addition into the near stoichiometric NdFeB therefore degrades the permanent magnetic properties.
ISSN:0094-243X
DOI:10.1063/1.2739826