Iron-nickel based high permeability amorphous alloy

Details Iron-nickel based high permeability amorphous alloy Iron-nickel based high permeability amorphous alloy

1993-06-03

1994-08-16

Sheehan, John P.

Metal treatment

Stock

Magnetic

148310, 148442, 420 97, 420 98, 420112, 420117, 4205841, H01F 104

Patent

active

053383761

ABSTRACT:
This invention relates to a Fe-Ni based high permeability amorphous alloy consisting of, in atom percent Ni 30-45%, Cr 0.5-1.2%, Si 5-14%, B 5-15%, P 1.0-3.0%, the balance Fe and inevitable impurities. The alloy is made by the rapid quenching melt method. It can be heat-treated in air and the excellent magnetic properties can be obtained as follows: B.sub.10 7900 Gs, B.sub.r 7500 Gs, H.sub.C 0.008 Oe, u.sub.m 68.times.10.sup.4. The present alloy is applied to make various magnetic devices which are used in electric apparatus and equipments.

REFERENCES:
patent: 4368447 (1983-01-01), Inomata et al.
patent: 4450206 (1984-05-01), Ames et al.
patent: 4503085 (1985-03-01), Dickson et al.
patent: 4517017 (1985-05-01), Inomata et al.

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