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Title:
SINTERED BODY FOR FORMING RARE EARTH MAGNET, AND RARE EARTH SINTERED MAGNET
Document Type and Number:
WIPO Patent Application WO/2017/022684
Kind Code:
A1
Abstract:
A novel, hitherto unseen rare earth sintered magnet which has both remarkably low carbon content and an extremely small average particle diameter of magnet material particles, and a sintered body for forming such a magnet, are provided. This sintered body for forming a rare earth magnet is configured by sintering into a single body a plurality of magnet material particles containing a rare earth material and each having an easy magnetization axis. This sintered body for forming a rare earth magnet has a carbon content of less than or equal to 500 ppm, and moreover, the average particle diameter of the magnetic material particles is less than or equal to 2 μm.

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Inventors:
FUJIKAWA KENICHI (JP)
OZEKI IZUMI (JP)
OMURE TOMOHIRO (JP)
YAMAGUCHI MIHO (JP)
OKUNO TOSHIAKI (JP)
MATSUO HIROSHI (JP)
Application Number:
PCT/JP2016/072392
Publication Date:
February 09, 2017
Filing Date:
July 29, 2016
Export Citation:
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Assignee:
NITTO DENKO CORP (JP)
International Classes:
H01F1/08; B22F1/05; B22F1/10; B22F1/102; B22F3/00; B22F3/10; C22C38/00; H01F1/055; H01F7/02
Domestic Patent References:
WO2011142275A12011-11-17
WO2012176511A12012-12-27
WO2013175730A12013-11-28
Foreign References:
JPH08148315A1996-06-07
Other References:
See also references of EP 3330978A4
Attorney, Agent or Firm:
NISHIJIMA Takaki et al. (JP)
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