Oxide magnetic material

Details Oxide magnetic material Oxide magnetic material

1993-09-14

1994-09-13

Cooper, Jack

Compositions

Magnetic

Iron-oxygen compound containing

252 6256, 252 626, 252 6264, C04B 3528

Patent

active

053466381

ABSTRACT:
An oxide magnetic material comprises a basic composition consisting essentially of 45.0 to 49.0 mol % of Fe.sub.2 O.sub.3, 3.0 to 9.0 mol % of MgO, 1.0 to 4.0 mol % of CuO, 0.1 to 1.5 mol % of Bi.sub.2 O.sub.3, and the balance of NiO and additives, and contains, as additives, SiO.sub.2 and Co.sub.3 O.sub.4 incorporated in the basic composition in an amount of 0.1 to 0.5 wt % of SiO.sub.2 and 0.05 to 0.35 wt % of Co.sub.3 O.sub.4.

REFERENCES:
patent: 2565111 (1951-08-01), Schoenberg
patent: 2656319 (1953-10-01), Berge
patent: 3450635 (1969-06-01), Izergina et al.
patent: 3574116 (1971-04-01), Sugano et al.

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