Composite soft magnetic material and coated particles therefor

Details Composite soft magnetic material and coated particles therefor Composite soft magnetic material and coated particles therefor

1991-05-08

1993-07-13

Thibodeau, Paul J.

Stock material or miscellaneous articles

Coated or structually defined flake, particle, cell, strand,...

419 35, 419 56, 419 57, 428402, 428403, 428689, 428900, B32B 516, B22F 100, B22F 102

Patent

active

052272354

ABSTRACT:
The invention provides a composite soft magnetic material which is prepared by coating soft magnetic metal particles with a high resistance soft magnetic substance, preferably by mechano-fusion, applying electricity to the coated particles in a mold cavity between punches serving as electrodes, for example, to thereby create a plasma, and thereafter further conducting electricity to effect plasma activated sintering. There is obtained a composite material which possesses both the high saturation magnetic flux density and high magnetic permeability characteristic of the soft magnetic metal and the high electric resistivity characteristic of the high resistance soft magnetic substance.

REFERENCES:
patent: 4320080 (1982-03-01), Esper et al.
patent: 4676940 (1987-06-01), Kim et al.

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