Title:
MAGNETIC MATERIAL
Document Type and Number:
WIPO Patent Application WO/2012/124387
Kind Code:
A1
Abstract:
This magnetic material has a magnetic powder and an amorphous metal as starting materials. The magnetic powder is a neodymium-iron-boron magnetic powder, and the amorphous metal contains a rare earth element, iron and boron. In the amorphous metal, the proportion of rare earth element atoms is in a range of 22 - 44 atomic percent, and the proportion of boron atoms is in a range of 6 - 28 atomic percent. The magnetic material is obtained by mixing the magnetic powder and amorphous metal and also heating to not less than 30°C below the crystallization temperature (Tx) for the amorphous metal, or, when the amorphous metal is metallic glass, heating to the glass transition temperature (Tg) thereof or higher.
Inventors:
OKAMURA KOUSAKU (JP)
MADOKORO KAZUHIKO (JP)
MADOKORO KAZUHIKO (JP)
Application Number:
PCT/JP2012/051863
Publication Date:
September 20, 2012
Filing Date:
January 27, 2012
Export Citation:
Assignee:
DAIHATSU MOTOR CO LTD (JP)
OKAMURA KOUSAKU (JP)
MADOKORO KAZUHIKO (JP)
OKAMURA KOUSAKU (JP)
MADOKORO KAZUHIKO (JP)
International Classes:
H01F1/08; B22F3/02; B22F3/24; C21D6/00; C22C33/02; C22C45/02; H01F1/053; B22F3/14
Domestic Patent References:
| WO2012032961A1 | 2012-03-15 |
Foreign References:
| JP2004099932A | 2004-04-02 | |||
| JPS63254703A | 1988-10-21 | |||
| JPS63232304A | 1988-09-28 | |||
| JPH06260360A | 1994-09-16 | |||
| JP2011214148A | 2011-10-27 |
Attorney, Agent or Firm:
OKAMOTO, HIROYUKI (JP)
Hiroyuki Okamoto (JP)
Hiroyuki Okamoto (JP)
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Claims: