Title of article
Effects of heat treatments on coercivity and microstructure in Nd15Fe77B8 sintered magnets
Author/Authors
Pi، نويسنده , , Seung H. and Choi، نويسنده , , J.M. and Kim، نويسنده , , Young G.، نويسنده ,
Pages
3
From page
89
To page
91
Abstract
The effects of post-sintering heat treatments on the structure and properties in sintered Nd15Fe77B8 magnets have been investigated. In the as-sintered sample, the crystal structure of the Nd-rich phase was f.c.c., while the Nd-rich phase transformed into a superlattice after heat treatment at 600°C for 1 h. However, the structures of Nd2Fe14B and B-rich (Nd1+ϵFe4B4) phases did not change upon heat treatment. It is suggested that the formation of the superlattice enhances the coercivity of the magnets.
Keywords
Neodymium , Iron , boron
Journal title
Astroparticle Physics
Record number
2063330
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