Title:
METHOD FOR MANUFACTURING MAGNETIC PARTICLES, MAGNETIC PARTICLES, AND PERMANENT MAGNET USING SAME
Document Type and Number:
WIPO Patent Application WO/2023/234206
Kind Code:
A1
Abstract:
The present invention is a method for manufacturing magnetic particles that include a manganese–aluminum alloy, wherein a mixed powder is obtained by mixing manganese particles, an aluminum source, an activator that includes a halide, and a sintering inhibitor, then the mixed powder is heated, a gap between sintering inhibitors formed by the sintering inhibitor is used to calorize the manganese particles, and a treated mixture that comprises magnetic particles that include a manganese–aluminum alloy is obtained. The proportion (Al/Mn) of aluminum to manganese in the manganese–aluminum alloy is in the range 25/75 to 35/65 by mass ratio. The magnetic particles that include the manganese–aluminum alloy is collected by removing the sintering inhibitor from the treated mixture.
Inventors:
ISHIKAWA YASUNARI (JP)
DOTO HIROSHI (JP)
NAITO KOJI (JP)
TSUKIYAMA KEISHI (JP)
DOTO HIROSHI (JP)
NAITO KOJI (JP)
TSUKIYAMA KEISHI (JP)
Application Number:
PCT/JP2023/019708
Publication Date:
December 07, 2023
Filing Date:
May 26, 2023
Export Citation:
Assignee:
AGC INC (JP)
International Classes:
B22F1/14; B22F1/00; B22F1/05; C22C22/00; C22C32/00; C23C10/48; H01F1/047
Foreign References:
| JP2020532654A | 2020-11-12 | |||
| JP2022522882A | 2022-04-20 | |||
| JP2019044265A | 2019-03-22 | |||
| JP2019147994A | 2019-09-05 | |||
| JPH0711301A | 1995-01-13 |
Attorney, Agent or Firm:
ITOH, Tadashige et al. (JP)
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