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 WC_{1 – 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 WC_0.64 to WC_0.78.

中文翻译：

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等离子射流合成可变化学计量的立方碳化钨

摘要-

本文报道了等离子流合成纳米晶立方碳化钨。通过使用带有石墨电极的同轴磁等离子体加速器，我们实施了一项实验过程，该过程可使人们获得高达95％的结晶WC _{1- x}。我们已经证明了通过改变过程的能量和起始混合物的组成来调整该化合物中参数1- x（化学计量比）的可行性。将释放的能量从8 kJ改变到23 kJ，起始试剂的ν（C）/ν（W）原子比从0.6改变到2.5，可使立方碳化钨的组成在WC _0.64到WC _0.78的范围内调整。