Magnetic devices by selective reduction of oxides

Details Magnetic devices by selective reduction of oxides Magnetic devices by selective reduction of oxides

1980-07-30

1983-04-05

Sheehan, John P.

Metal treatment

Process of modifying or maintaining internal physical...

Magnetic materials

148126, 148 3155, 1481261, 419 19, 419 31, H01F 102

Patent

active

043790038

ABSTRACT:
Magnetic material is made by reducing an oxide powder compact having at least one nonreducible oxide species. A typical mixture of nickel, iron, and aluminum oxides selectively reduces to form a material having a typical permeability of 10 or more and high resistivity. Reduced eddy current losses occur in devices made from such material.

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patent: 3425822 (1969-02-01), Lambert
patent: 4069043 (1978-01-01), Ackermann
patent: 4101348 (1978-07-01), Berchtold
Green et al., "Properties of Fe-50 w/o Ni Alloys Prepared by Diecl Hydrogen Reduction of Mixed Oxide Preforms", the International Journal of Powder Metallurgy and Powder Technology, vol. 16 No. 2, 1980, pp. 131-147.

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