Heat-Resistant Diamond–Silicon Carbide Composite Materials Modified with Hafnium

In this work, diamond–SiC composite materials modified with hafnium have been obtained, and their thermal stability at 1200°C in air has been studied. The phase composition, microstructure, and physical and mechanical characteristics have been determined. A higher thermal stability of sintered Hf-modified materials has been demonstrated compared to a diamond–silicon carbide composite materials with no additives.