Soft magnetic co-based metallic glass alloy

Details Soft magnetic co-based metallic glass alloy Soft magnetic co-based metallic glass alloy

2007-05-29

2007-05-29

Sheehan, John P. (Department: 1742)

Metal treatment

Stock

Magnetic

C148S403000

Reexamination Certificate

active

10510642

ABSTRACT:
Disclosed is a soft magnetic Co-based metallic glass alloy with high glass forming ability, which has a supercooled-liquid temperature interval (ΔTχ) of 40 K or more, a reduced glass-transition temperature (Tg/Tm) of 0.59 and a low coercive force of 2.0 A/m or less. The metallic glass alloy is represented by the following composition formula: [Co1−n−(a+b)FenBaSib]100−χMχ, wherein each of a, b and n represents an atomic ratio satisfying the following relations: 0.1≦a≦0.17; 0.06≦b≦0.15; 0.18≦a+b≦0.3; and 0≦n≦0.08, M representing one or more elements selected from the group consisting of Zr, Nb, Ta, Hf, Mo, Ti, V, Cr, Pd and W, and χ satisfying the following relation: 3 atomic %≦χ≦10 atomic %. The present invention overcomes restrictions in preparing a metallic glass bar with a thickness of 1 mm or more from conventional Co—Fe—B—Si-based metallic glasses due to their poor glass forming ability, and provides an excellent Co—Fe—B—Si-based metallic glass allowing the formation of bulk metallic glass, which serves as a key technology for achieving a broader application fields of metallic glass products.

REFERENCES:
patent: 5976274 (1999-11-01), Inoue et al.
patent: 6077367 (2000-06-01), Mizushima et al.
patent: 6284061 (2001-09-01), Inoue et al.
patent: 6296681 (2001-10-01), Mizushima et al.
patent: 2001/0031373 (2001-10-01), Sawa et al.
patent: 04-143239 (1992-05-01), None
patent: 07-183113 (1995-07-01), None
patent: 10-324939 (1998-12-01), None

Affiliated with

Also associated with

Rating

Soft magnetic co-based metallic glass alloy does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Soft magnetic co-based metallic glass alloy, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Soft magnetic co-based metallic glass alloy will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3816018