PROCEDURE FOR PRODUCTION OF FINE DISPERSED POWDERS

摘要

FIELD: metallurgy. ^ SUBSTANCE: invention refers to production of powders and can be implemented for production of fine dispersed powders of specified dimensions. The disclosed here procedure consists in generating vacuum-arc discharge using cathode out of metal of produced powder. Cathode metal is melt in a cathode spot of vacuum-arc discharge. Metal is evaporated from the cathode spot and condensed on a massive cooled substrate. Also metal is evaporated at cathode temperature corresponding to a boundary of transition of vacuum-arc discharge with an integral-cold cathode into arc discharge with a hot cathode. Temperature of the cathode spot is facilitated by modulation of discharge current with pulse feed source connected with the cathode and having inductive decoupling with the main source of current feed. ^ EFFECT: production of qualitative powder of specified dimension without oxide film. ^ 1 dwg