Hard magnetic material

Details Hard magnetic material Hard magnetic material

1997-06-25

1999-11-02

Sheehan, John

Metal treatment

Stock

Magnetic

420 83, 420121, H01F 1057

Patent

active

059762730

ABSTRACT:
A hard magnetic material of the present invention contains Fe as a main component and further contains elements R and L, and B. Not less than 60% of the structure of the hard magnetic material is composed of a fine crystalline phase having an average grain size of not more than 100 nm and the rest is composed of an amorphous phase. The fine crystalline phase essentially consists of bcc-Fe and contains at least R.sub.2 Fe.sub.14 B.sub.1.

REFERENCES:
patent: 4402770 (1983-09-01), Koon
patent: 5022939 (1991-06-01), Yajima et al.
patent: 5049208 (1991-09-01), Yajima et al.
patent: 5089065 (1992-02-01), Hamano et al.
patent: 5135584 (1992-08-01), Fujiwara
patent: 5449417 (1995-09-01), Shimizu et al.

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