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

55 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 1 2007

Fingerprint

sorption
Magnets
Sorption
magnets
Vapors
vapors
microstructure
Microstructure
wetting
Wetting
surface treatment
Surface treatment
Magnetic properties
Grain boundaries
grain boundaries
magnetic properties
Transmission electron microscopy
transmission electron microscopy

All Science Journal Classification (ASJC) codes

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

Cite this

Microstructure analysis of sintered Nd-Fe-B magnets improved by Tb-vapor sorption. / Watanabe, Natsuki; Itakura, Masaru; Kuwano, Noriyuki; Li, Deshan; Suzuki, Shunji; Machida, Ken Ich.

In: Materials Transactions, Vol. 48, No. 5, 01.05.2007, p. 915-918.

Research output: Contribution to journalArticle

Watanabe, Natsuki ; Itakura, Masaru ; Kuwano, Noriyuki ; Li, Deshan ; Suzuki, Shunji ; Machida, Ken Ich. / Microstructure analysis of sintered Nd-Fe-B magnets improved by Tb-vapor sorption. In: Materials Transactions. 2007 ; Vol. 48, No. 5. pp. 915-918.
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