Analysis of the domestic polycrystalline diamond - carbide composite sheet in the microscopic structure

At home and abroad are generally used method of manufacturing high pressure high temperature sintering of polycrystalline diamond - carbide composite film. Polycrystalline Diamond Compact domestic performance and a wide gap between foreign advanced products, mainly in the low impact resistance, easy layering, chipping, cracking, etc.. This topic using scanning electron microscopy, Raman spectroscopy,  abrasive wheels  spectroscopy, X-ray diffraction analysis, electron microprobe analysis and other methods at home and abroad polycrystalline diamond - carbide composite sheet in the microstructure,  synthetic diamond  distribution differences, combined with an analysis of the existing sintering process, discussion of the mechanism  Synthetic diamond  differences; using scanning electron microscopy, laser particle size analysis, atomic emission spectroscopy, plasma emission spectroscopy methods such as key raw materials - diamond powder.