DISLOCATION CLIMB CONTROLLED DEFORMATION OF Y2O3-DOPED CUBIC ZRO2 SINGLE-CRYSTALS

被引：11
|
作者：
JIMENEZMELENDO, M [1 ]
MARTINEZFERNANDEZ, J [1 ]
DOMINGUEZRODRIGUEZ, A [1 ]
CASTAING, J [1 ]
机构：
[1] CNRS,PHYS MAT LAB,BELLEVUE,FRANCE
来源：
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY | 1993年 / 12卷 / 02期
关键词：
D O I：
10.1016/0955-2219(93)90128-E
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Constant strain rate tests have been performed on cubic ZrO2 single crystals stabilized with 9.4 mol% Y2O3 in an argon atmosphere at temperatures up to 1750-degrees-C. Crystals were oriented along the [112] direction for easy {001}[110] slip. Mechanical data have been correlated with transmission electron microscopy observations in order to characterize the strain rate-controlling mechanism. At temperatures above 1500-degrees-C, a recovery mechanism by dislocation climb has been obtained with an activation energy of about 510 kJ/mol, corresponding to the cation diffusion.
引用
收藏
页码：97 / 101
页数：5
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