Title:
RARE EARTH PERMANENT MAGNET AND METHOD FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2010/106964
Kind Code:
A1
Abstract:
Disclosed is a rare earth permanent magnet wherein HfC particles having an average particle diameter of 5-100 nm are dispersed in an amount of 0.2-3.0 atom% in an R-Fe-B alloy (R represents a rare earth element). By containing the carbide, the crystal grains are made finer without decreasing the magnet components. Consequently, the rare earth permanent magnet can have an improved coercivity without reducing the saturation magnetization.
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Inventors:
NAKAZAWA YOSHIYUKI (JP)
KATO RYUTARO (JP)
SHIMIZU HARUHIKO (JP)
KATO RYUTARO (JP)
SHIMIZU HARUHIKO (JP)
Application Number:
PCT/JP2010/054162
Publication Date:
September 23, 2010
Filing Date:
March 05, 2010
Export Citation:
Assignee:
HONDA MOTOR CO LTD (JP)
NAKAZAWA YOSHIYUKI (JP)
KATO RYUTARO (JP)
SHIMIZU HARUHIKO (JP)
NAKAZAWA YOSHIYUKI (JP)
KATO RYUTARO (JP)
SHIMIZU HARUHIKO (JP)
International Classes:
C22C38/00; B22F3/00; B22F3/14; B22F9/04; B22F9/08; C21D6/00; C22C33/02; H01F1/053; H01F41/02
Foreign References:
| JP2002124407A | 2002-04-26 | |||
| JP2006210893A | 2006-08-10 | |||
| JPS60100402A | 1985-06-04 | |||
| JPS63196014A | 1988-08-15 | |||
| JPH024941A | 1990-01-09 |
Other References:
See also references of EP 2410067A4
Attorney, Agent or Firm:
SUENARI, Mikio (JP)
He is a 成幹 student at last. (JP)
He is a 成幹 student at last. (JP)
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