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

doi:10.2320/matertrans.48.915

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

Materials Physics and Engineering

Research output: Contribution to journal › Article › peer-review

70 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 language	English
Pages (from-to)	915-918
Number of pages	4
Journal	Materials Transactions
Volume	48
Issue number	5
DOIs	https://doi.org/10.2320/matertrans.48.915
Publication status	Published - May 2007

All Science Journal Classification (ASJC) codes

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

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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.",

author = "Natsuki Watanabe and Masaru Itakura and Noriyuki Kuwano and Deshan Li and Shunji Suzuki and Machida, {Ken Ich}",

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AU - Watanabe, Natsuki

AU - Itakura, Masaru

AU - Kuwano, Noriyuki

AU - Li, Deshan

AU - Suzuki, Shunji

AU - Machida, Ken Ich

PY - 2007/5

Y1 - 2007/5

N2 - 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.

AB - 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.

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

Abstract

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