PROCEDURE FOR PRODUCTION OF FINE DISPERSED POWDERS Russian patent published in 2010 - IPC B22F9/12 

Abstract RU 2395369 C2

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

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RU 2 395 369 C2

Authors

Lisenkov Aleksandr Arkad'Evich

Barchenko Vladimir Timofeevich

Goncharov Vadim Dmitrievich

Goncharov Sergej Vadimovich

Skachek Irina Gennad'Evna

Dates

2010-07-27Published

2008-09-18Filed