Plasma Jet Synthesis of Cubic Tungsten Carbide of Variable Stoichiometry

A. A. Sivkov, A. Nasyrbaev, D. S. Nikitin, I. I. Shanenkov, I. A. Rahmatullin

Research output: Contribution to journalArticlepeer-review

Abstract

Abstract—: This paper reports plasma jet synthesis of nanocrystalline cubic tungsten carbide. Using a coaxial magnetoplasma accelerator with graphite electrodes, we have implemented an experimental process that allows one to obtain up to 95% crystalline WC1 –x. We have demonstrated the feasibility of tuning the parameter 1 – x (stoichiometric ratio) in this compound by varying the energetics of the process and the composition of the starting mixture. Varying the released energy from 8 to 23 kJ and the ν(C)/ν(W) atomic ratio of the starting reagents from 0.6 to 2.5 allows the composition of cubic tungsten carbide to be tuned in the range WC0.64 to WC0.78.

Original languageEnglish
Pages (from-to)337-342
Number of pages6
JournalInorganic Materials
Volume57
Issue number4
DOIs
Publication statusPublished - Apr 2021

Keywords

  • cubic tungsten carbide
  • nonstoichiometric compounds
  • plasma jet synthesis
  • stoichiometry
  • X-ray diffraction

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Inorganic Chemistry
  • Metals and Alloys
  • Materials Chemistry

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