Anisotropic permanent magnets

Details Anisotropic permanent magnets Anisotropic permanent magnets

1981-06-17

1985-08-20

Sheehan, John P.

Metal treatment

Compositions

Heat treating

335306, H01F 104

Patent

active

045362300

ABSTRACT:
A permanent magnet made of a rigid material, said magnet having, within its entire body or in a part thereof, an anisotropic magnetic structure wherein the axes of easy magnetization in the elementary magnet regions have a convergent orientation in the environment of at least one of magnet poles. The value of magnetic induction to be delivered by the magnet of the invention to an air gap, or other part of magnetic circuit is raised relative to conventional anisotropic permanent magnets made of the same materials.

REFERENCES:
patent: 2393466 (1946-01-01), Greenfield
patent: 2602840 (1952-07-01), McKee et al.
patent: 3454913 (1969-07-01), Israelson et al.
patent: 3610583 (1971-10-01), Ostrom
patent: 3781736 (1973-12-01), Parker
patent: 4185262 (1980-01-01), Watanabe et al.
patent: 4222021 (1980-09-01), Bunker
patent: 4271782 (1981-06-01), Bate et al.

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