Preparation of Zirconium Carbide-Based Refractory Ceramics by Direct Zirconium Carburization

Abstract— Compact stoichiometric zirconium carbide (ZrC) with a tailored shape has been synthesized by direct carburization of rolled zirconium metal in an atmosphere of an argon + ethylene gas mixture. Ceramics have been produced by reacting zirconium metal with ethylene gas, through absorption of the carbon released on the reaction surface as a result of C2H6 pyrolysis. We have characterized the microstructure of the ceramics and assessed the mechanical and conductive properties of the synthesized ZrC.