Scratching of Diamond Substrate Using Fixed Ultra-Hard Abrasive Grain Tool

Scratching test s of a diamond substrate were performed using a tool fixed with four types of grain s potentially harder than diamond. Materials reported by other researchers to be harder than diamond s often contain combinations of carbon, boron, and nitrogen. From the viewpoint of manufacturing , fullerene, wurtzite (hexagonal lattice boron nitride), polycrystalline diamond , and flame-synthesized diamond were selected in this study . After creating and testing saw wires and wheel saws, flame combustion synthetic diamond was determined to be the most promising. This is because only scratches from flame combustion - synthesized diamond initiate cleavage fracture.