Journal of the American Ceramic Society, Vol.86, No.1, 152-154, 2003
Role of vanadium carbide additive during sintering of WC-Co: Mechanism of grain growth inhibition
In a WC-Co specimen, the shape of WC crystals was a triangular prism with truncated corners. When VC was added to inhibit grain growth, the crystal shape changed to a triangular prism without truncation. This shape change was related to the variation of edge energy, which has a significant influence on the coarsening process of WC grains.