Research status on surface metallization of diamond

With the highest hardness and excellent wear resistance. Diamond is the most suitable abrasive for the manufacture of hard materials processing tools. It has been widely used in the manufacture of tools for cutting, grinding, polishing and dressing. However, there is high interfacial energy between diamond and binder, which reduces the service life and processing efficiency of diamond tools. Metallization of diamond surface is an effective way to improve the performance and quality of diamond tools, and has become a hot spot in the research field of diamond tools. Based on the related literatures at home and abroad, this paper reviews the plating technology of single metal coating, alloy coating and composite coating on the diamond surface and its research progress in mechanical properties from the perspective of plating materials. The application scope and advantages of plating technology to plating materials are expounded. The design idea of metal coating on diamond surface with low interface stress, high bonding force and suitable strength by optimizing plating technology and cross-using plating technology is expounded. Then future research trend of diamond surface metallization is proposed. (topical review)