The high hardness and wear resistance were obtained in the ternary boride base cemented carbides of WC-Co/TiB_2. In this dissertation, the ternary boride base cemented carbides were prepared by vacuum sintering, and the mechanical properties of cemented carbides were improved by sinter-hot isostatic pressing. The relationship among manufacturing process, composition, microstructure and mechanical properties had been systematically investigated by differential scanning calorimetry (DSC), X-ray diffraction (X...