Preparation of acicular ferromagnetic metal particles consisting

Details Preparation of acicular ferromagnetic metal particles consisting Preparation of acicular ferromagnetic metal particles consisting

1983-07-28

1984-03-27

Stallard, W.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 05BA, 148105, B22F 922

Patent

active

044392311

ABSTRACT:
Acicular ferromagnetic metal particles consisting essentially of iron are prepared by a process wherein acicular iron(III) oxide hydroxide provided with a shape-stabilizing surface coating, or iron(III) oxide obtained therefrom by dehydration, is reduced by means of a decomposable organic compound and hydrogen.

REFERENCES:
patent: 4017303 (1977-04-01), Koester et al.
patent: 4155748 (1979-05-01), Steck et al.
patent: 4178171 (1979-12-01), Steck et al.

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