LAUSR

Abstract Synthesised diamond are used in a wide range of industrial applications that exploit the property of diamond as the hardest material, including processing tools for the purposes of cutting, grinding, and polishing. Industrial diamonds are typically synthesised by the high-pressure and high-temperature (HPHT) method. It is needless to say that the crystalline properties of the diamond itself are essential for industrially used diamond abrasive grains. However, a comprehensive range of functionalities, including shape, self-sharpening ability, and hardness are key factors for the adoption of diamonds as abrasives. Diamonds synthesised by the HPHT method contain the raw catalyst trapped inside their grains. When　utilizing this characteristic of synthesis diamonds positively, It can be possible to synthesis diamond composite abrasive grains with other solid substances introduced into the diamond crystals. In this article, we report the synthesis of novel industrial diamond grains that are composite abrasives. By introducing cubic boron nitride (cBN) as a raw material, we synthesised diamonds containing cBN.