Microstructure analysis of sintered Nd-Fe-B magnets improved by Tb-vapor sorption

Natsuki Watanabe, Masaru Itakura, Noriyuki Kuwano, Deshan Li, Shunji Suzuki, Ken Ich Machida

Research output: Contribution to journalArticle

56 Citations (Scopus)

Abstract

The surface treatment with Tb-vapor sorption improves the magnetic properties of small-sized magnets. Microstructure of the Tb-treated magnets was investigated by transmission electron microscopy (TEM). By applying the Tb-treatment, the diffusion of Tb through grain boundaries occurred even inside the magnets, and then a thin and continuous wetting-layer phase was formed at the boundaries between the Nd2Fe14B grains, The results suggest that the formation of the thin and continuous wetting-layer phase leads to the improvement in magneticproperties.

Original languageEnglish
Pages (from-to)915-918
Number of pages4
JournalMaterials Transactions
Volume48
Issue number5
DOIs
Publication statusPublished - May 2007

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Fingerprint Dive into the research topics of 'Microstructure analysis of sintered Nd-Fe-B magnets improved by Tb-vapor sorption'. Together they form a unique fingerprint.

  • Cite this