Machinable anisotropic permanent magnets of Mn-Al-C alloys

Details Machinable anisotropic permanent magnets of Mn-Al-C alloys Machinable anisotropic permanent magnets of Mn-Al-C alloys

1974-07-23

1976-08-24

Satterfield, Walter R.

Metal treatment

Process of modifying or maintaining internal physical...

Magnetic materials

75134M, 148 3157, 148121, H01F 100

Patent

active

039765199

ABSTRACT:
An anisotropic permanent magnet of an Mn-Al-C alloy containing 68.0% to 73.0% by weight of manganese, (1/10 Mn-6.6)% to (1/3 Mn-22.2)% by weight of carbon, and the remainder aluminum, which alloy is rendered anisotropic by deforming it plastically at a temperature of 530.degree.C to 830.degree.C.
The permanent magnet has excellent mechanical characteristics and magnetic properties such that the (BH)max is above 4.8 .times. 10.sup.6 G.Oe up to about 9.2 .times. 10.sup.6 G.Oe in its bulk state.

REFERENCES:
patent: 2797995 (1957-07-01), Morgan
patent: 3116181 (1963-12-01), Hokkecing et al.
patent: 3661567 (1972-05-01), Yamamoto
patent: 3730784 (1973-05-01), Yamamoto

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