METHOD OF PRODUCING TUNGSTEN CARBIDE NANOPOWDER Russian patent published in 2011 - IPC B22F9/00 B82B3/00 C01B31/34 

Abstract RU 2414992 C2

FIELD: process engineering.

SUBSTANCE: invention relates to production of metal and hard alloy nanopowders. Proposed method comprises heating the mix of tungsten and graphite nanopowder in sealed reactor to not over 1000°C. Heating is carried out for not over 70 hrs in rotating sealed reactor at not over (50÷60) rpm. Note here that graphite rods and tungsten nanoparticles (grain size of 10 to 200 nm) are used with the following ratio of components, in wt %: graphite rods - 6, tungsten nanopowder - 94.

EFFECT: high-purity tungsten carbide nanopowder.

1 dwg

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RU 2 414 992 C2

Authors

Arkhipov Vladimir Afanas'Evich

Vorozhtsov Aleksandr Borisovich

Vorozhtsov Sergej Aleksandrovich

Davydovich Valerij Ivanovich

Dammer Vladislav Khristianovich

Kirillov Vladimir Anatol'Evich

Lerner Marat Izrail'Evich

Dates

2011-03-27Published

2009-01-19Filed