关键词: 金刚石, 石墨烯, 共价结构, 性能协同, 刀具

Abstract:

The paper focused on the high-performance requirements for diamond engineering surfaces in high-tech fields such as aerospace， micro-electro-mechanical systems， biomedicine， and nuclear energy. It addressed key challenges including the susceptibility of diamond to graphitization and amorphization under high loads and contact with ferrous metals， as well as the poor frictional behavior of conventional diamond surfaces. A novel concept of “in-situ instantaneous transformation” of diamond surfaces into graphene was proposed， along with the development of a laser induced-flywheel mechanical cleavage method. This method successfully stabilized a unique diamond-nano-graphite-graphene covalent structure in ambient conditions. Experimental results demonstrate that this new structure synergizes the excellent properties of diamond， graphite， and graphene. It offers a novel approach to resolving engineering bottlenecks associated with diamond applications and holds promise for opening up new avenues for the use of diamond， diamond coatings， graphene， and all-carbon devices in mechanical， electronic， aerospace， and other fields.

Key words: diamond, graphene, covalent structure, performance synergy, cutting tool