Diamond polycrystalline composite material and its properties

The results of experimental studies on the development of a diamond polycrystalline material to equip drill bits have been considered. Angles of wetting graphite by sintering aids Ni, Co, and alloy of them have been defined. Among the composites, which have been tested, the longest durability and the highest strength have been exhibited by the composite of the Cd-Co-34Ni formulation.