Process for the production of cobalt-rare earth alloy powders
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United States of America Patent
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Sep 22, 1981
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N/A
app pub date -
Sep 30, 1980
filing date -
Oct 12, 1979
priority date (Note) -
Expired
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Abstract
A process for producing cobalt-rare earth alloy powders suitable for forming into permanent magnets includes 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 composition 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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