Abstract: The research was carried out on surface formation under condition in which fine Ceramics was cut with sintered diamond tools at very small amound of cut depth. Results have shown that the processes of deformation and fracture of fine ceramics is very clear, the cutting process of fine ceramics is sharacterized by remarkble phenomena such as rubbing, indenting, swell-up crack initiation, large-scale fracture, and that these phenomena occur corresponding to different interference depth of cutting edge.

Key words: 精细陶瓷, 切削, heat and mass transfer, interaction, plasma spray, spraying particles