Ni-Fe-Rh alloys

Details Ni-Fe-Rh alloys Ni-Fe-Rh alloys

1976-06-03

1977-05-17

Rutledge, L. Dewayne

Specialized metallurgical processes, compositions for use therei

Processes

Free metal or alloy reductant contains magnesium

C22C 1903

Patent

active

040239659

ABSTRACT:
Permalloy type alloys containing rhodium suitable for use in magnetic devices and having improved resistance to corrosion contain from about 65 to 90 atomic percent nickel, 10 to 35 atomic percent iron and 1 to 25 atomic percent rhodium. Magnetic films made of these alloys which contain 1 to 10 atomic percent rhodium exhibit magnetic properties similar to Permalloy while having increased resistance to corrosion.

REFERENCES:
patent: 3067029 (1962-12-01), Gyorgy et al.
patent: 3140942 (1964-07-01), Walter
patent: 3519498 (1970-07-01), Ahn
patent: 3540864 (1970-11-01), Flur et al.
Bradley, "Properties of Magnetic Films for Memory Systems", Journal of Applied Physics, vol. 33, pp. 1051-1057, (Mar. 1962).
Rice et al., "Magnetic Corrosion, and Surface Properties of Ni-Fe-Cr Thin Films", Journal of Applied Physics, vol. 47, pp. 1158-1163, (Mar. 1976).
Suits, "Rhodium Alloy Permalloy", IBM Technical Disclosure Bulletin, vol. 18, No. 2, p. 529, (July 1975).

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