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

1976-12-29

1979-05-01

Steiner, Arthur J.

Specialized metallurgical processes, compositions for use therei

Processes

Free metal or alloy reductant contains magnesium

75123B, 75123D, 75123J, 75123K, 75123M, 75134F, C22C 3810, C22C 3812

Patent

active

041521447

ABSTRACT:
Metallic glasses having high permeability, low magnetostriction, low ac core loss and high thermal stability are disclosed. In contrast to the prior art in which one, or at most two, of these properties are attained in one metallic glass, all those outstanding properties are achieved in a single metallic glass selected from one of the compositions of the invention. The metallic glasses consist essentially of about 63 to 83 atom percent of at least one metal selected from the group consisting of iron and cobalt, from 0 to about 60% of which metal may be replaced with nickel, about 2 to 12 atom percent of at least one element selected from the group consisting of molybdenum, tungsten, niobium and titanium, and about 15 to 25 atom percent of at least one metalloid element selected from the group consisting of boron, phosphorus and carbon plus incidental impurities.

REFERENCES:
patent: 3856513 (1974-12-01), Chen et al.
patent: 3871836 (1975-03-01), Polk et al.
patent: 3986867 (1976-10-01), Masumoto et al.
patent: 4036638 (1977-07-01), Ray et al.
patent: 4038073 (1977-07-01), O'Hondhey
patent: 4056411 (1977-11-01), Chen et al.
patent: 4067732 (1978-11-01), Ray
Business Week, 12/1/73, "New Metals in Search of a Use", pp. 64J-65.

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