【摘要】 本文研究了Ａｌ２Ｏ３－Ｔｉ（Ｃ，Ｎ）体系新型陶刀具材料的力学性能与显微结构。该新体系材料的晶粒细化，双骨架结构穿插均匀、连续、牢固．随硬质相Ｔｉ（Ｃ，Ｎ）含量的增加，晶粒、裂纹尺寸减小。新材料的主要力学性能较常用的Ａｌ２Ｏ３－Ｔｉ（Ｃ，Ｎ）体系材料有明显提高。更多还原

【Abstract】 The mechanical properties and microstructures of Al2O3-Ti (C,N) composite, a new type of ceranic cutting materials,have been studied in this paper. The results show that the new ceramics, with finer grains and continuous, strong interlaced double-skeleton microstructures, have higher bending strength and fracture toughness than commonly--used Al2O3-TiC composites. The grain size and crack size decrease with the increase of Ti (C,N) content.更多还原