Title:
HOT-WORKED R-Fe-B MAGNET FOR VARIABLE-MAGNETIC-FORCE MOTOR, VARIABLE-MAGNETIC-FORCE MOTOR, AND ELECTRONIC DEVICE FOR VEHICLE AND HOUSEHOLD
Document Type and Number:
WIPO Patent Application WO/2023/112894
Kind Code:
A1
Abstract:
This hot-worked R-Fe-B magnet for a variable-magnetic-force motor is an R2-Fe14-B-based hot-worked magnet (where R is at least one rare earth element selected from among Nd, La, Ce, and Y) comprising 12.2-14.5 at.% of R2(Nd1-xy-zLaxCeyYz) (0.0≤x≤0.2, 0.0≤y+z≤0.3), 5-6.5 at.% of B, 0.0-5.0 at.% of Co, and 0.0-1.0 at.% of Ga, with the balance being Fe and inevitable impurities.
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Inventors:
TANG XIN (JP)
SEPEHRI AMIN HOSSEIN (JP)
OHKUBO TADAKATSU (JP)
HONO KAZUHIRO (JP)
SEPEHRI AMIN HOSSEIN (JP)
OHKUBO TADAKATSU (JP)
HONO KAZUHIRO (JP)
Application Number:
PCT/JP2022/045683
Publication Date:
June 22, 2023
Filing Date:
December 12, 2022
Export Citation:
Assignee:
NAT INST MATERIALS SCIENCE (JP)
International Classes:
H01F1/057; H02K15/03
Foreign References:
| JP2019179796A | 2019-10-17 | |||
| JP2020031144A | 2020-02-27 | |||
| JP2020027933A | 2020-02-20 | |||
| JP2020107849A | 2020-07-09 | |||
| JP2017157832A | 2017-09-07 | |||
| JPH05175025A | 1993-07-13 |
Attorney, Agent or Firm:
MATSUNUMA Yasushi et al. (JP)
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