复相陶瓷的内在增韧机制及其影响因素

本文论述了复相陶瓷中可能存在的各种增韧机制，并就影响这些机制发挥作用的各种因素作了简要介绍。作者认为各种增韧机制并非单独发挥作用，而是互有联系互有影响的；同种因素对不同机制所起的影响也不尽相同，有时甚至完全相反。材料研究工作者必须根据材料的组成特性有选择地强化某些机制，切忌面面皆顾，反而得不偿失。

THE INTRINSIC TOUGHENING MECHANISMS IN CERAMICCOMPOSITES AND THEIR EFFECTING FACTORS

The paper postulated various possible toughening mechanisms existing in ceramic composite,while discussed the factors that in fluenced the toughening effects of these mechanisms. It seemed that these mechanisms did not exist independently and there were interdependent and interacting relations between them;the same factor(for example grain size,Yong's Modulus,etc.)could also give quite different influence to different toughening mechanism,sometimes even the opposite one. In order to get ceramics with desirable properties,material scientist should reinforce some toughening mechanisms selectively,according to the compositional characteristic of the material.