Metal treatment – Process of modifying or maintaining internal physical... – Magnetic materials
Patent
1980-04-07
1982-08-31
Sheehan, John P.
Metal treatment
Process of modifying or maintaining internal physical...
Magnetic materials
204192M, 148121, H01F 100
Patent
active
043470866
ABSTRACT:
An amorphous rare-earth transition metal body is provided that has integral, predetermined regions of hard and soft magnetism. A method is provided for heating portions of an amorphous rare-earth transition metal alloy body, in situ, to transform predetermined portions from a state of low magnetic coercivity to a highly magnetically coercive state.
REFERENCES:
patent: 3116181 (1963-12-01), Hokkeling et al.
patent: 3276922 (1966-10-01), Sery et al.
patent: 3661567 (1972-05-01), Yamamoto et al.
patent: 3676867 (1972-07-01), Bacon et al.
patent: 4126494 (1978-11-01), Imamura et al.
patent: 4265684 (1981-05-01), Boll
Clark, A. E., "High-field magnetization and coercivity of amorphous rare-earth-Fe.sub.2 alloys", Appl. Phys. Lett., vol. 23, No. 11, Dec. 1, 1973, pp. 642-644.
The Condensed Chemical Dictionary, 8th ed., 1971, p. 753.
Balbashov et al., "Thermomagnetic Recording in the Surface Layer of an Orthoferrite", Soviet Technical Physical Letters for (4), Apr. 1978.
Chraplyvy Andrew R.
Croat John J.
Herbst Jan F.
General Motors Corporation
Harasek Elizabeth F.
Sheehan John P.
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