Production of carbide and hard-alloy mixture nanopowders with low-temperature plasma
https://doi.org/10.17073/1997-308X-2013-3-7-14
Abstract
The processes to produce nanosized tungsten carbide powders as well as other transition metal carbides have been investigated with the use of plasma-chemical reduction synthesis. The basic regularities of producing powders of specified dispersion and composition have been determined. Characteristic particle sizes of carbides are 40–80 nm. For the purpose of homogeneous WC–Со nanopowders mixture production with exact mass content, a technique of cobalt sedimentation onto tungsten carbide powder with simultaneous adding of retardant-carbides such as chromium, va- nadium, and tantalum carbides has been developed. The produced nanopowders have been examined with modern methods including high-reso- lution SEM and fractional gas analysis.
About the Authors
N. V. IsaevaRussian Federation
Yu. V. Blagoveshchensky
Russian Federation
N. V. Blagoveshchenskaya
Russian Federation
Yu. I. Melnik
Russian Federation
A. V. Samokhin
Russian Federation
N. V. Alekseyev
Russian Federation
A. G. Astashov
Russian Federation
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Review
For citations:
Isaeva N.V., Blagoveshchensky Yu.V., Blagoveshchenskaya N.V., Melnik Yu.I., Samokhin A.V., Alekseyev N.V., Astashov A.G. Production of carbide and hard-alloy mixture nanopowders with low-temperature plasma. Powder Metallurgy аnd Functional Coatings (Izvestiya Vuzov. Poroshkovaya Metallurgiya i Funktsional'nye Pokrytiya). 2013;(3):7-14. (In Russ.) https://doi.org/10.17073/1997-308X-2013-3-7-14