The effect of input parameters of electro discharge process on physical properties of synthesized nano-tungsten carbide

摘要

Nanostructure tungsten carbide powder has been successfully synthesized using electro discharge process, i.e., submerged tungsten and graphite electrodes in deionized water. The effects of discharge parameters, e.g., current and pulse duration of discharge process, on structure and morphology of synthesized powder were studied using XRD patterns and TEM images, respectively. Furthermore, the effect of discharge parameters on size distribution and shape of particles were investigated using PSA and SEM tests, respectively. Last but not least, the effect of input parameters on the rate of production was studied. On the other hand, mono-tungsten carbide (W2C) was carburized under argon atmosphere for production of WC phase. FE-SEM test concludes the evaluation process of nano-sized WC powder.