Specialized metallurgical processes – compositions for use therei – Processes – Free metal or alloy reductant contains magnesium
Patent
1978-02-09
1980-02-12
Steiner, Arthur J.
Specialized metallurgical processes, compositions for use therei
Processes
Free metal or alloy reductant contains magnesium
75171, 148 3155, C22C 1900, C22C 1905
Patent
active
041882113
ABSTRACT:
During investigation of thermal stability of the amorphous magnetic alloys by the Inventors, it was discovered that, due to the application of heat to the alloys, the hysteresis loop of the conventional, amorphous magnetic alloys was shifted in such a manner that the initial permeability of the alloys was decreased. It was also discovered that the initial permeability of the conventional amorphous magnetic alloys was irreversibly changed due to the application of heat to and the withdrawal of heat from the alloys.
The present invention is characterized by the discovery of an unexpected relationship between the content of metallic elements and a metalloid element(s) of the amorphous alloy composition, thereby providing novel alloy compositions with thermally stable magnetic properties.
The present invention is also characterized by incorporating an additional element or elements into an amorphous magnetic alloy, thereby providing the alloy with thermal stability.
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patent: 4067732 (1978-01-01), Ray
patent: 4079430 (1978-03-01), Fujishima et al.
Fujishima Hiroki
Kohmoto Osamu
Ohya Kazuo
Yamaguchi Norishige
Steiner Arthur J.
TDK Electronics Company Limited
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