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

页码：97 / 101

页数：5

共 20 条

[1] MECHANICAL AND MICROSTRUCTURAL ASPECTS OF THE HIGH-TEMPERATURE PLASTIC-DEFORMATION OF YTTRIA-STABILIZED ZIRCONIA POLYCRYSTALS [J].