Fe-based amorphous alloy

Details Fe-based amorphous alloy Fe-based amorphous alloy

1997-03-17

1999-03-02

Ip, Sikyin

Metal treatment

Stock

Magnetic

148403, 420 8, 420 99, C22C 4502

Patent

active

058765190

ABSTRACT:
An Fe-based amorphous alloy having a compositional formula in atomic percent represented by Fe.sub.100-a-b-c-d-e-f Al.sub.a Ga.sub.b P.sub.c C.sub.d B.sub.e Si.sub.f, wherein a to f satisfy 4.ltoreq.a.ltoreq.6, 1.ltoreq.b.ltoreq.3, 9.ltoreq.c.ltoreq.12, 5.ltoreq.d.ltoreq.7, 3.ltoreq.e.ltoreq.5 and 0.25.ltoreq.f.ltoreq.4. The Fe-based amorphous alloy is an amorphous magnetic material having an excellent amorphous phase-forming ability, and can easily form an amorphous material having a thickness of 1.5 mm or above by a mold casting method realizing a cooling speed of about 10.sup.3 K/s. Also, because the amorphous alloy has a supercooled liquid region of 50 K or larger, by applying a working method utilizing a super cooled state, amorphous magnetic materials of various form can be prepared.

REFERENCES:
patent: 4918555 (1990-04-01), Yoshizawa et al.

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