Process for the production of cobalt/rare earth alloy powders

Details Process for the production of cobalt/rare earth alloy powders Process for the production of cobalt/rare earth alloy powders

H - Electricity

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75/2, 53/342

H01F 1/06 (2006.01) C22C 1/04 (2006.01) C22C 32/00 (2006.01)

Patent

CA 1158460

ABSTRACT OF THE DISCLOSURE A process for producing cobalt-rare earth alloy powders suitable for forming into permanent magnets in- cludes mixing cobalt powder particles having refractory oxide dispersoid powder particles fixed in the surfaces of the cobalt particles with particles of a rare earth element in a proportion corresponding to the composi- tion of the alloy to be formed. The mixture is heated to cause the cobalt/dispersoid particles and the rare earth particles to form the desired alloy by diffusion with substantially no sintering.

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