TECHNOLOGY FOR MACHINING HIGH-REFRACTORY CERAMIC PARTS BASED ON SILICON NITRIDE

摘要

The results of the experimental study of mechanical treatment of highly refractory ceramic parts made of various compositions based on silicon nitride are described. The revealed regularities of the surface layer and defect formation have been used to develop a two-stage process for working these parts, which ensures high machining efficiency and a minimum level of surface layer defects. The proposed technology has been used in making cutting plates from nitride ceramics, which has increased their average resistance by 15-20 percent.