Investigation of grain boundary sliding during superplastic deformation of a fine-grained alumina by atomic force microscopy

被引：28

作者：

Clarisse, L ^{[1
]}

Bataille, A ^{[1
]}

Pennec, Y ^{[1
]}

Crampon, J ^{[1
]}

Duclos, R ^{[1
]}

机构：

[1] Univ Sci & Technol Lille, Lab Struct & Proprietes Etat Solide, CNRS, URA 234, F-59655 Villeneuve Dascq, France

来源：

CERAMICS INTERNATIONAL | 1999年 / 25卷 / 04期

关键词：

alumina; superplasticity; grain boundary sliding; atomic force microscopy;

D O I：

10.1016/S0272-8842(98)00044-3

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：

The contribution of grain boundary sliding to total strain has been investigated in a superplastically deformed fine-grained alumina by atomic force microscopy in contact mode. The analysis of the surface relief and of its change with strain allowed us to determine the vertical component of grain boundary sliding as a function of strain up to 16%. Grain boundary sliding has been thus estimated to contribute to about 70% of total strain. This value is compared with results published on alumina ceramics or superplastic metallic alloys. The reliability and the limitation of the method are also discussed. (C) 1999 Elsevier Science Limited and Techna S.r.l. All rights reserved.

引用

页码：389 / 394

页数：6

共 16 条

[1] CREEP-BEHAVIOR AND GRAIN-BOUNDARY SLIDING IN POLYCRYSTALLINE [J].