Ultra-Refractory Hf4ZrC5–(Hf,Zr)B2 Composites by Electrothermal Explosion under Pressure

Abstract

Abstract Ultra-refractory Hf 4 ZrC 5 –(Hf,Zr)B 2 composites were prepared by electrothermal explosion (ETE) under pressure in a one-stage process, with special emphasis on the influence of high-energy ball milling (HEBM) of starting Hf–Zr–C–B powder mixtures. Synthesized Hf 4 ZrC 5 –(Hf,Zr)B 2 composites had a grain size of 0.5–1.0 μm and a porosity of 10–12%.