Cavitation induced by high-temperature plastic deformation in aluminium nitride ceramics

被引：5

作者：

Choux, S ^{[1
]}

Masson, I ^{[1
]}

Feiereisen, JP ^{[1
]}

George, A ^{[1
]}

Michel, JP ^{[1
]}

机构：

[1] ECOLE MINES,SCI & GENIE MAT MET LAB,F-54042 NANCY,FRANCE

来源：

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY | 1996年 / 16卷 / 05期

关键词：

D O I：

10.1016/0955-2219(95)00128-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：

Intergranular cavitation has been investigated in samples deformed plastically up to a few per cent in four-point bending and uniaxial compression above 1500 degrees C. Even for strains of 0.5%, cavities with a size of several tenths of a micrometre were observed, generally nucleated at small sintering additive particles. Cavities are preferentially formed in grain boundaries perpendicular to the stress axis in areas deformed in tension but are rather isotropically distributed in samples deformed in compression. The volume fraction of cavities was found to be near the total strain.

引用

页码：515 / 519

页数：5

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