Influence of Zirconia Interfacial Coating on Alumina Fiber-reinforced Alumina Matrix Composites

被引:8
|
作者
Licciulli, Antonio [1 ]
Chiechi, Antonio [1 ]
Fersini, Maurizio [1 ]
Sanosh, Kunjalukkal P. [1 ]
Balakrishnan, Avinash [2 ]
机构
[1] Univ Salento, Dept Engn Innovat, I-73100 Lecce, Italy
[2] Amrita Ctr Nanosci, Kochi 682041, Kerala, India
关键词
FRACTURE-BEHAVIOR; MONAZITE; ENVIRONMENT; CREEP;
D O I
10.1111/j.1744-7402.2012.02854.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
The present study demonstrates an approach for fabricating fiber-reinforced ceramic matrix composites (CMCs) involving the coating of 2-dimensional woven alumina fibers with zirconia layer by sol gel, followed by impregnation of these coated fibers with alumina matrix and pressureless sintering. To emphasize the benefits of the zirconia coating on these CMCs, a reference sample without interfacial coating layer was prepared. The zirconia-coated CMCs showed superior flexural strength and thermal shock resistance compared with their uncoated counterparts. Foreign object damage tests carried out on the ZrO2 coated CMCs at high impact speed showed localized damage without any shattering.
引用
收藏
页码:251 / 256
页数:6
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