Hard magnetic alloy compact and method of producing the same

Details Hard magnetic alloy compact and method of producing the same Hard magnetic alloy compact and method of producing the same

1997-03-25

1999-12-14

Sheehan, John

Metal treatment

Process of modifying or maintaining internal physical...

Magnetic materials

148103, 148104, 419 12, H01F 1057, H01F 103

Patent

active

060011939

ABSTRACT:
A method of producing a hard magnetic alloy compact at low cost, in which an alloy that contains not less than 50% by weight of an amorphous phase and exhibits hard magnetism in a crystallized state is solidified and molded at around its crystallization temperature under applied pressure by utilizing the softening phenomenon occurring during a crystallization process. The resulting compact has high hard magnetic characteristics and can be applied as permanent magnet members such as in motors, actuators, and speakers.

REFERENCES:
patent: 4966633 (1990-10-01), Brewer
patent: 5089065 (1992-02-01), Hamano et al.
patent: 5211766 (1993-05-01), Panchanathan
patent: 5486240 (1996-01-01), McCallum
"Magnetic properties of novel resin-bonded exchange coupled rare-earth magnets," L. Folks et al., 8405 Journal of Magnetism and Magnetic Materials 147 (1995) Jun., No. 3, Amsterdam, NL.

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