Ferromagnetic metal powder and process for preparation thereof

Details Ferromagnetic metal powder and process for preparation thereof Ferromagnetic metal powder and process for preparation thereof

1989-12-20

1991-07-02

Zimmerman, John J.

Metal treatment

Process of modifying or maintaining internal physical...

Magnetic materials

75349, H01F 106, B22F 922

Patent

active

050282786

ABSTRACT:
A ferromagnetic metal powder comprises a ferromagnetic metal particle composed mainly of iron, a silicon compound layer formed on the surface of the ferromagnetic metal particle in such an amount that the amount of silicon is 0.1 to 1% by weight based on iron in the ferromagnetic metal particle, and a layer containing a nonferrous transition metal element compound, which is formed on the silicon compound layer.

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