Gapped amorphous metal-based magnetic core

Details Gapped amorphous metal-based magnetic core Gapped amorphous metal-based magnetic core

2006-01-31

2006-01-31

Nguyen, Tuyen T (Department: 2832)

Inductor devices

With closed core interrupted by an air gap

C336S234000

Reexamination Certificate

active

06992555

ABSTRACT:
A magnetic implement has a gap size ranging from about 1 to about 20 mm. The implement comprises a magnetic core composed of an amorphous Fe-based alloy. A physical gap is disposed in the core's magnetic path. The alloy has an amorphous structure; is based on the components: (Fe—Ni—Co)—(B—Si—C). The sum of its Fe+Ni+Co content is in the range of 65–85 atom percent. Advantageously, the core exhibits an overall magnetic permeability ranging from about 40 to about 200 and enhanced magnetic performance.

REFERENCES:
patent: 4587507 (1986-05-01), Takayama et al.
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patent: 6144279 (2000-11-01), Collins et al.
patent: 6480008 (2002-11-01), Okamoto et al.
patent: 6563411 (2003-05-01), Otte et al.
PCT Written Opinion, Mar. 17, 2005.

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