摘要
本文首次提出对陶瓷刀具材料的组成分布、微观结构进行设计以形成梯度的模型，通过对不同组成分布的刀具工作过程中的热应力、机械应力及材料制备过程中的残余热应力进行模拟，以使刀具材料内部形成与外载应力部分抵消的机制，从而提高陶瓷刀具抗磨损破损的性能。
A model for designing compostional distribution and microstructure of ceramic tool materials with gradient isproposed for the first time in the present paper. By means of simulation of residual thermal stresses in fabricating pro-cess as well as thermal stresses, mechanical stresses in working process of cutting tools with different compositionaldistribution, a mechanism of partially counteracting the stresses resulted from external loads in the interior of an in-sert is expected to be formed so as to improve wear resistance and fracture resistance of ceramic cutting tools.
出处
《陶瓷学报》
CAS
1997年第3期125-129,共5页
Journal of Ceramics
基金
国家自然科学基金
关键词
梯度功能材料
材料设计
陶瓷刀具
残余应力
模型
functionally gradient materials, materials design, ceramic cutting tools, residual stressses, compositional distribution
