Home > Search Results: keywords:"spheroid tungsten carbide, decarburation, tungsten nanometric particles"
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National Repository of Grey Literature 1 records found  Search took 0.01 seconds. 
Behaviour of tungsten carbide during plasma deposition
 Brožek, Vlastimil ; Flemr, V. ; Matějíček, Jiří ; Neufuss, Karel
Analysis of the spheroidized tungsten carbide powder prepared by plasma spraying showed marked changes in chemical and phase composition, especially in dependence on particle size. In sub-micrometric or nanometric particles, the bonded carbon content is reduced to nearly zero and increases with particle diameter. Nanometric particles consist of almost pure tungsten. this permits to draw some conclusions about the tungsten carbide decomposition and carbon transport in molten carbide under extreme conditions of plasma melting and deposition onto solid substrates.
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