Abstract
A simple, easy, and low-cost process for the fabrication of tungsten carbide (WC) powder through microwave heating of WO3–C mixtures was developed. Thermodynamic calculations and experimental investigations were carried out for WO3–C and W–C systems, and a formation mechanism was proposed. In the results, for the synthesis of WC, the use of over stoichiometric amount of C together with a specially assembled experimental setup (which effectively retains heat in the system) is necessary. The WC powder is successfully obtained by heating WO3:5C mixture for 900 s in a domestic microwave oven.
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