Carbide substrate at high pressure high temperature composite made of superhard composite materials

0.1 to several millimeters thick diamond powder with 1 to several mm thick cemented carbide substrate (substrate) at high pressure high temperature composite made of superhard composite materials. The material has a wear resistance and strength of diamond and carbide substrate material toughness and weldability, is an  cubic boron nitride  tools and wear-resistant materials, widely used in machining tools, petroleum and geological drill bits, grinding wheel tools. In 1973 the U.S. company GE developed the PDC material Compax is the earliest products. PDC since the early 1970s has been successfully developed, scholars conducted extensive, in-depth research. At present, the domestic general synthesis method using secondary PDC.  cutting tools  diamond is the most important performance indicators heat resistance, wear resistance and impact strength, and hardness, strength, workability, weldability, etc. In some cases, are more important for different uses of the diamond is not the same performance requirements . Will now wear resistance, heat resistance and impact toughness as a measure of the main indicators of good or bad quality PDC.