CRACK PROPAGATION BEHAVIOR AND LIFETIME PREDICTION IN ALUMINA AND ZIRCONIA

作     者：Kiyohiko Ikeda Koichi Kaizu 

作者机构：School of Mechanical Engineering Shanghai Jiaotong University 上海 200030 

出 版 物：《Chinese Journal of Mechanical Engineering》 (中国机械工程学报（英文版）)

年 卷 期：2002年第15卷第3期

页      面：284-288页

核心收录：

学科分类：08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 

主　　题：Alumina Zirconia Fatigue Crack growth Lifetime prediction 

摘      要：The lifetime prediction of ceramics is discussed on the basis of therelationship between stress intensity factor K_1 and crack velocity nu. The effects of waterenvironment, the cyclic loading and microstructure of material on K_1-nu characteristics are studiedby carrying out the crack growth tests by the double torsion (DT) method under the static andcyclic loading in both environments of air and water for alumina and zirconia. K_1-nucharacteristics determined by the double torsion method are used to predict time-to-failure underthe cyclic loading of alumina and zirconia ceramics. The predictions agree qualitatively with theexperimental results.