Microstructural evaluation of Dy-Ni-Al grain-boundary-diffusion (GBD) treatment on sintered Nd-Fe-B magnet

Naoko Oono, Masato Sagawa, Ryuta Kasada, Matsui Akihiko, Akihiko Kimura

研究成果: Conference contribution

10 被引用数 (Scopus)

抄録

A novel GBD treatment with Dy-Ni-Al eutectic alloy powder enhanced the coercivity of the sintered Nd-Fe-B magnet plate as thick as 5mm to 1760 kA/m (22 kOe) without reducing the remanence. The results of wavelength dispersive X-ray spectroscopy (WDS) indicated that this industrially epoch-making treatment spread Dy, which is a coercivity enhancing element, from the surface to the centre of the magnet through Nd-rich phase. Microstructural observations suggested that Ni and Al, which are the melting point depressants of Nd and Dy, enabled the high diffusivity of Dy.

本文言語English
ホスト出版物のタイトルPRICM7
出版社Trans Tech Publications Ltd
ページ2919-2922
ページ数4
ISBN(印刷版)0878492550, 9780878492558
DOI
出版ステータスPublished - 2010
外部発表はい
イベント7th Pacific Rim International Conference on Advanced Materials and Processing, PRICM-7 - Cairns, QLD, Australia
継続期間: 2010 8月 22010 8月 6

出版物シリーズ

名前Materials Science Forum
654-656
ISSN(印刷版)0255-5476
ISSN(電子版)1662-9752

Other

Other7th Pacific Rim International Conference on Advanced Materials and Processing, PRICM-7
国/地域Australia
CityCairns, QLD
Period10/8/210/8/6

ASJC Scopus subject areas

  • 材料科学(全般)
  • 凝縮系物理学
  • 材料力学
  • 機械工学

フィンガープリント

「Microstructural evaluation of Dy-Ni-Al grain-boundary-diffusion (GBD) treatment on sintered Nd-Fe-B magnet」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル