Hard magnetic materials and method of producing the same

Details Hard magnetic materials and method of producing the same Hard magnetic materials and method of producing the same

1996-09-20

1999-12-21

Sheehan, John

Metal treatment

Stock

Magnetic

420 83, 420121, H01F 1057

Patent

active

060044071

ABSTRACT:
Hard magnetic materials of the present invention contain at least one element of Fe, Co and Ni as a main component, at least one element M of Zr, Nb, Ta and Hf, at least one rare earth element R and B. The texture of the materials has at least 70% of fine crystalline phase having an average grain size of 100 nm or less, and the residue having an amorphous phase, the fine crystalline phase mainly composed of bcc-Fe or bcc-Fe compound, Fe--B compound and/or R.sub.2 Fe.sub.14 B.sub.1.

REFERENCES:
patent: 4921553 (1990-05-01), Tokunga et al.
patent: 4983232 (1991-01-01), Endoh et al.
patent: 5022939 (1991-06-01), Yajima et al.
patent: 5049208 (1991-09-01), Yajima et al.
patent: 5089065 (1992-02-01), Hamano et al.

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