Fe-system amorphous metal alloy strip having enhanced AC magneti

Details Fe-system amorphous metal alloy strip having enhanced AC magneti Fe-system amorphous metal alloy strip having enhanced AC magneti

1996-04-10

1999-09-28

Sheehan, John

Metal treatment

Stock

Magnetic

336234, H01F 1153

Patent

active

059581530

ABSTRACT:
An amorphous metal alloy strip having enhanced magnetic properties consisting essentially of a composition mainly composed of Fe, Si, B, C and P having the formula (Fe.sub.a Si.sub.b B.sub.c C.sub.d).sub.100-x P.sub.x, wherein "a", "b", "c" and "d" are atomic percentages ranging from 70 to 86, 1 to 19, 7 to 20 and 0.02 to 4, respectively, with the proviso that the sum of "a", "b", "c" and "d" is equal to 100, and "x" is a weight percentage ranging from 0.003 to 0.1, said alloy strip having a thickness of 40 to 90 .mu.m and a width of not less than 20 mm. This amorphous metal alloy strip can be produced by a sinle-roll or twin-roll process under a specific cooling condition.

REFERENCES:
patent: 4587507 (1986-05-01), Takayama et al.
patent: 4637843 (1987-01-01), Takayama et al.

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