Manufacture has nano level superfine polycrystalline diamond grain growth inhibitor

摘要

The present invention relates to the grain growth inhibitors for forming polycrystalline diamond abrasive compact and fine diamond particle and nano-scale particle. In one embodiment, a kind of manufacture polycrystalline diamond abrasive compact provides. This method includes that provide the average grain diameter of the mixture of diamond particles be about 1 micron or smaller, distribute a large amount of nanometer titaniferous particles and diamond matrix, as grain growth inhibitor, it is sintered the mixture diamond particles and titaniferous particle generates the sintered diamond abrasive grain of polycrystalline structure at elevated pressures and temperatures. The average grain diameter of sintered diamond particles is about 1 micron or smaller. Figure 1