IMPLICATIONS OF TRANSFORMATION PLASTICITY IN ZRO2-CONTAINING CERAMICS .1. SHEAR AND DILATATION EFFECTS

被引：171

作者：

CHEN, IW ^{[1
]}

MOREL, PER ^{[1
]}

机构：

[1] MIT,DEPT MAT SCI & ENGN,CAMBRIDGE,MA 02139

来源：

JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 1986年 / 69卷 / 03期

关键词：

CERAMIC MATERIALS - Mechanical Properties;

D O I：

10.1111/j.1151-2916.1986.tb07403.x

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：

Transformation plasticity in ZrO//2-containing ceramics generally exhibits shear and dilatation effects of comparable magnitude. The coupling between external stresses and crystallographic strains assists the tetragonal-monoclinic transformation, which, via shear localization, gives rise to macroscopic shear and dilatant deformation. Application of a yield criterion based on both shear and dilatation effects correctly correlates deformation data from tension, compression bending, and indentation, and further delineates a crack-tip process zone comparable to the one observed experimentally.

引用

页码：181 / 189

页数：9

共 25 条

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