陶瓷相(Ti,W)C的价电子结构与力学性能的关系

RELATIONSHIP BETWEEN THE VALENCE ELECTRON STRUCTURE AND MECHANICAL PROPERTIES OF CERAMICS (Ti,W)C

计算了陶瓷相（Ｔｉ，Ｗ）Ｃ的价电子结构，比较了陶瓷相（Ｔｉ，Ｗ）Ｃ，ＴｉＣ，ＴｉＮ，ＴｉＯ之间的价电子结构与力学性能之间的关系，指出陶瓷相价电子结构中的最强键ｎＡ的大小在晶体结构相同时可作为硬度高低的比较指标，陶瓷相的强度可由η＝ｎＣ／ｎＴ来衡量。

The valence electron structure of ceramics(Ti,W)C is calculated in this paper.The relationships between the mechanical properties and the valence electron structure for four different ceramics (Ti,W)C,TiC,TiN and TiO are compared.It is pointed out that the strongest bond in the valence electron structure n A can be used as the reference level of ceramics hardness with the same crystal structure,while η=n C /n T as the reference level of strength.