Process for producing alloy powder containing rare earth metals

Details Process for producing alloy powder containing rare earth metals Process for producing alloy powder containing rare earth metals

1986-06-23

1987-07-21

Rosenberg, Peter D.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 05BB, B22F 900

Patent

active

046816232

ABSTRACT:
An alloy metal powder which contains rare earth metals and which has a uniform composition and contains a minimum of residual reducing agent and oxygen is produced by (1) preparing a mixture composed of (a) a powder of rare earth metal oxide, (b) a powder of a metal which is difficult to volatize at 900.degree. to 1300.degree. C., (c) at least one reducing agent selected from alkali metals, alkaline earth metals, and hydrides thereof, and (d) at least one chloride selected from alkali metal chlorides and alkaline earth metal chlorides, (2) heating the mixture in an inert gas atmosphere or under vacuum to provide a reaction mixture, and (3) treating the reaction mixture by a wet process.

REFERENCES:
patent: 3623861 (1971-11-01), Arias
patent: 3690963 (1972-09-01), Spink

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