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Title:
HARD MAGNETIC ALLOY AND METHOD FOR PRODUCING THE SAME
Document Type and Number:
Japanese Patent JP2009249682
Kind Code:
A
Abstract:

To provide a hard magnetic alloy containing Fe16N2 or R2Fe17, and having high coercive force and high saturation magnetization.

Material obtained by weighing iron and a metal acid salt other than iron so as to be an objective composition, and dissolving the same is used as a starting raw material. The starting raw material is subjected to reduction treatment in a hydrogen air flow, and is subjected to nitriding treatment in an ammonia or ammonia mixed air flow, whereby the hard magnetic alloy having high coercive force and high saturation magnetization is easily and inexpensively produced.


Inventors:
KONNO YOSUKE
MATSUMOTO HIROYUKI
SATO SHOICHI
SUGIMOTO SATOSHI
Application Number:
JP2008098586A
Publication Date:
October 29, 2009
Filing Date:
April 04, 2008
Export Citation:
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Assignee:
NEC TOKIN CORP
UNIV TOHOKU
International Classes:
C22C38/00; B22F1/00; B22F9/00; B22F9/22; H01F1/06
Domestic Patent References:
JP2005183932A2005-07-07
JPH06330252A1994-11-29
JPS60144906A1985-07-31
JPH0565603A1993-03-19
JPH06188110A1994-07-08
JPH06342706A1994-12-13
JPH04325653A1992-11-16
JPH10289812A1998-10-27
JP2002373804A2002-12-26
JPH06124831A1994-05-06
JPH05214463A1993-08-24
JPH0586402A1993-04-06
JPH05275217A1993-10-22
Attorney, Agent or Firm:
Kenho Ikeda
Shuichi Fukuda
Keisuke Yamamoto



 
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