Rare earth-iron-boron-permanent magnets

Details Rare earth-iron-boron-permanent magnets Rare earth-iron-boron-permanent magnets

1988-06-03

1990-08-28

Morris, Theodore

Metal treatment

Process of modifying or maintaining internal physical...

Magnetic materials

148302, 420 83, H01F 109

Patent

active

049522523

ABSTRACT:
Permanent magnets are prepared by a method comprising mixing a particulate rare earth-iron-boron alloy with a particulate rare earth oxide, aligning the magnetic domains of the mixture, compacting the aligned mixture to form a shape, and sintering the compacted shape.

REFERENCES:
patent: 3887395 (1975-06-01), Martin
patent: 4133680 (1979-01-01), Babaskin et al.
patent: 4135953 (1979-01-01), Nagel et al.
patent: 4762574 (1988-08-01), Ghandehari
patent: 4769063 (1988-09-01), Ishigaki et al.
patent: 4770702 (1988-09-01), Ishigaki et al.
patent: 4878958 (1989-11-01), Ghandehari
C. Herget, "Metallurgical Ways to NdFeB Alloys, Permanent Magnets From Co-Reduced NdFeB," presented at the 8th International Workshop on Rare-Earth Magnets and their Applications, Dayton, Ohio, May 6-8, 1985.

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