Permanent magnet composition

Details Permanent magnet composition Permanent magnet composition

1991-09-11

1993-02-02

Sheehan, John P.

Metal treatment

Stock

Magnetic

420435, 420582, H01F 104

Patent

active

051835177

ABSTRACT:
An improved permanent magnet composition comprising 22 to 28 wt % R, 5 to 16 wt % iron, 0.2 to 6.5 wt % copper, 0.1 to 6 wt % manganese, 0.5 to 6 wt % A, 0.1 to 2 wt % B and the balance cobalt, in which R is at least one of rare earth elements including yttrium, A is at least one of zinc and zirconium and B is at least one element selected from the group of aluminum, bismath and thallium.

REFERENCES:
patent: 4289549 (1981-09-01), Kasai

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