Rare earth permanent magnetic powder, bonded magnet and device using the bonded magnet

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United States of America Patent

PATENT NO 9859042
SERIAL NO

14380060

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Abstract

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The application discloses a rare-earth permanent magnetic powder, a bonded magnet, and a device using the bonded magnet. The rare-earth permanent magnetic powder comprises 4 to 12 at. % of Nd, 0.1 to 2 at. % of C, 10 to 25 at. % of N and 62.2 to 85.9 at. % of T, wherein T is Fe or FeCo and the main phase of the rare-earth permanent magnetic powder is a hard magnetic phase with a TbCu7 structure. Material volatilization can be avoided effectively during a preparation process of the rare earth permanent magnetic powder, thus improving the wettability with a water-cooling roller during the preparation process and final prepared materials are provided with good magnetic properties.

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Patent Owner(s)

Patent OwnerAddress
GRIREM ADVANCED MATERIALS CO LTD100088 2 XINJIE STREET XICHENG DISTRICT BEIJING BEIJING CITY BEIJING CITY 100088

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Li, Hongwei Beijing, CN 138 980
Li, Kuoshe Beijing, CN 4 21
Lu, Shuai Beijing, CN 16 18
Luo, Yang Beijing, CN 93 348
Xie, Jiajun Beijing, CN 12 6
Yan, Wenlong Beijing, CN 7 7
Yu, Dunbo Beijing, CN 20 24

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