ROLE OF GRAIN-BOUNDARY GLASS PHASE ON THE SUPERPLASTIC DEFORMATION OF TETRAGONAL ZIRCONIA POLYCRYSTAL

被引：81

作者：

YOSHIZAWA, Y

SAKUMA, T

机构：

[1] Department of Materials Science, Faculty of Engineering, The University of Tokyo, Tokyo, 113

来源：

JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 1990年 / 73卷 / 10期

关键词：

deformation; glass; grain boundaries; superplastic; zirconia: tetragonal polycrystals;

D O I：

10.1111/j.1151-2916.1990.tb06718.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：

Superplastic deformation of tetragonal zirconia polycrystal (TZP) was investigated by compression test in the temperature range of 1000° to 1500°C. Special attention was paid to the role of the grain‐boundary glass phase on hightemperature deformation behavior. A small addition of glass phase markedly improved the high‐temperature deformability of TZP. Lithium silicate glass was much superior to aluminosilicate or lithium aluminum silicate glasses for lowering the high‐temperature flow stress. The deformation mechanism was discussed on the basis of mechanical testing data and microstructural examinations. Copyright © 1990, Wiley Blackwell. All rights reserved

引用

页码：3069 / 3073

页数：5

共 24 条

[1] DIFFUSION-ACCOMMODATED FLOW AND SUPERPLASTICITY [J].