Method of manufacturing a permanent magnet

Details Method of manufacturing a permanent magnet Method of manufacturing a permanent magnet

1987-10-09

1989-08-15

Rutledge, L. Dewayne

Metal treatment

Process of modifying or maintaining internal physical...

Magnetic materials

148105, 148121, H01F 109

Patent

active

048571180

ABSTRACT:
Permanent magnets are manufactured by grinding a magnetic phase having the composition RE.sub.2 (Fe, Co).sub.14 B with a non-magnetic phase, orienting it magnetically, densifying and then sintering it. The non-magnetic phase may be a hydride of either a rare earth metal or alloy thereof. The second phase must have a melting point lower than the magnetic phase.

REFERENCES:
patent: 3655464 (1972-04-01), Benz
patent: 4663066 (1987-05-01), Fruchart et al.
patent: 4762574 (1988-08-01), Ghandehari

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