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1. (WO2018221512) SAMARIUM-IRON-NITROGEN MAGNETIC POWDER AND METHOD FOR PRODUCING SAME

Pub. No.:    WO/2018/221512    International Application No.:    PCT/JP2018/020553
Publication Date: Fri Dec 07 00:59:59 CET 2018 International Filing Date: Wed May 30 01:59:59 CEST 2018
IPC: B22F 1/00
B22F 9/20
C01G 49/00
H01F 1/059
Applicants: NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY
国立研究開発法人産業技術総合研究所
TDK CORPORATION
TDK株式会社
OKADA, Shusuke
岡田 周祐
TAKAGI, Kenta
高木 健太
ENOKIDO, Yasushi
榎戸 靖
FUJIKAWA, Yoshinori
藤川 佳則
HASHIMOTO, Ryuji
橋本 龍司
Inventors: OKADA, Shusuke
岡田 周祐
TAKAGI, Kenta
高木 健太
ENOKIDO, Yasushi
榎戸 靖
FUJIKAWA, Yoshinori
藤川 佳則
HASHIMOTO, Ryuji
橋本 龍司
Title: SAMARIUM-IRON-NITROGEN MAGNETIC POWDER AND METHOD FOR PRODUCING SAME
Abstract:
In one embodiment of the present invention, a nonmagnetic phase is formed on the surface of a samarium-iron-nitrogen magnetic phase in a samarium-iron-nitrogen magnetic powder, and the arithmetic mean roughness Ra is 3.5 nm or less.