Method of comminuting rare earth magnet alloys into fine particl

Details Method of comminuting rare earth magnet alloys into fine particl Method of comminuting rare earth magnet alloys into fine particl

1987-08-28

1988-08-02

Rosenbaum, Mark

Solid material comminution or disintegration

Processes

241 29, 241 18, B02C 1912

Patent

active

047609664

ABSTRACT:
Rare earth magnet alloys are comminuted into fine particles at room tempeure up to about 400.degree. C. by placing the alloy into a vessel and pressurizing the vessel, hydriding the alloy, depressurizing the alloy to atmospheric pressure after the absorption of hydrogen and evacuating the vessel so that the absorbed hydrogen is given up leaving microfissures in the alloy, and comminution of the sample.

REFERENCES:
patent: 4641787 (1987-02-01), Petersen et al.

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