Applied Physics A

, 125:610 | Cite as

Study on effect of dielectric gas type on electrical discharge erosion synthesis of tungsten carbide nanopowder

  • Farid Kabirinia
  • Mohammadreza ShabgardEmail author
  • Nooshin Salman Tabrizi


Due to the refractory nature of tungsten and tungsten carbide, one of the most practical methods for synthesizing nanoparticles of them is the electrical discharge erosion method. Here, production of binary tungsten carbide nano-alloy using discharge in nitrogen and argon gases has been studied. The effects of process parameters including the type of gas, gas flow rate, discharge current, and pulse on-time duration on powder production rate and size were investigated. Various characterization techniques were used to analyze the produced powder for each set of process parameters. Dynamic light scattering indicated that particle-size distribution under both of the gases ranges from 45 to 85 nm and nitrogen produces smaller final particles. X-ray diffraction showed that the powder resulted from both gases contain different phases namely, W2C, WC, and WC1-x, and two elements of tungsten and carbon. Scanning electron microscopy shows spherical morphology for the particles produced in both gases. Nitrogen overall performs better in terms of production rate under different circumstances.



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© Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Faculty of Mechanical EngineeringUniversity of TabrizTabrizIran
  2. 2.Department of EnergyMaterials and Energy Research CenterKarajIran

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