Method for increasing the effectiveness of a magnetic field for

Details Method for increasing the effectiveness of a magnetic field for Method for increasing the effectiveness of a magnetic field for

1976-03-19

1979-05-29

Rutledge, I. Dewayne

Metal treatment

Process of modifying or maintaining internal physical...

Magnetic materials

148 3157, 148105, 148108, H01F 102

Patent

active

041566238

ABSTRACT:
A cobalt-rare earth alloy sintered product is substantially magnetized by heating or cooling it to a temperature at which its intrinsic coercive force H.sub.ci is significantly lower than at room temperature, applying a relatively small magnetizing field to it at such temperature and cooling or warming it in the magnetizing field to room temperature.

REFERENCES:
patent: 3802935 (1974-04-01), Martin et al.
patent: 3849213 (1974-11-01), Baermann
patent: 3891476 (1975-06-01), Naastepad
Bozorth, R; Ferromagnetism; New York, 1951, pp. 117-119, (71-176 and 389-390.

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