Metallic glasses having a combination of high permeability, low

Details Metallic glasses having a combination of high permeability, low Metallic glasses having a combination of high permeability, low

1987-12-04

1989-05-30

Sheehan, John P.

Metal treatment

Stock

Magnetic

148121, 148403, H01F 104

Patent

active

048348163

ABSTRACT:
Metallic glasses having high permeability, low coercivity, low ac core loss, low exciting power, and high thermal stability are disclosed. The metallic glasses are substantially completely glassy and consist essentially of about 58 to 81 atom percent iron, from 1 to about 10 atom percent of at least one member selected from the group consisting of nickel and cobalt, about 1 to 6 atom percent of at least one member selected from the group consisting of chromium, molybdenum, vanadium, niobium, and zirconium, about 11 to 27.5 atom percent boron about 0.5 to 8 atom percent silicon, 0 to about 2 atom percent carbon, plus incidental impurities, the total of born, silicon and carbon present ranging from about 17 to 28 atom percent. The alloy is heat treated at a temperature and for a time sufficient to achieve stress relief without inducing precipitation of discrete particles therein. Such a metallic glass alloy is especially suited for use in devices requiring high response to weak magnetic fields, such as ground fault interrupters and current/potential transformers.

REFERENCES:
patent: 3856513 (1974-12-01), Chen et al.
patent: 3940293 (1976-02-01), Polk et al.
patent: 3986867 (1976-10-01), Masumoto et al.
patent: 4067732 (1978-01-01), Ray
patent: 4126287 (1978-11-01), Mendelsohn et al.
patent: 4152144 (1979-05-01), Hasegawa et al.
patent: 4152146 (1979-05-01), Freilich et al.
patent: 4190438 (1980-02-01), Aso et al.
patent: 4221592 (1981-09-01), Ray
patent: 4225334 (1980-09-01), Inomata et al.
patent: 4231816 (1980-11-01), Cuomo et al.
patent: 4255189 (1981-03-01), Ray
patent: 4298409 (1981-11-01), DeCristofaro et al.
Metallic Glasses-papers presented at a Seminar of the Materials Science Div. of American Soc. for Metals, Sep. 18-19, 1976, ASM, p. 31.

Affiliated with

Also associated with

Rating

Metallic glasses having a combination of high permeability, low does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Metallic glasses having a combination of high permeability, low , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Metallic glasses having a combination of high permeability, low will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2149984