Low-temperature ageing of zirconia-toughened mullite composites

被引：7

作者：

Cai, S ^{[1
]}

Yuan, QM ^{[1
]}

Meng, JH ^{[1
]}

Yang, ZF ^{[1
]}

Chen, Y ^{[1
]}

机构：

[1] Tianjin Univ, Coll Mat Sci & Engn, Tianjin 300072, Peoples R China

来源：

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY | 2001年 / 21卷 / 16期

关键词：

ageing composites; mechanical properties; mullite; ZrO2;

D O I：

10.1016/S0955-2219(01)00224-2

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 change of mechanical properties of zirconia-toughened mullite composites, aged at low temperature in air, was investigated in this paper. The results indicated that the existence of microcracks, which were formed by the transformation of the zirconia tetragonal phase to the monoclinic during the cooling stage of processing was an important factor for the degradation of mechanical properties during subsequent ageing at 200-300 degreesC. The increasing of flexural strength of the composites aged at 500-60 degreesC was attributed to the relaxation of stress by reverse transformation of ZrO2, (C) 2001 Elsevier Science Ltd. All rights reserved.

引用

页码：2911 / 2915

页数：5

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