The corrosion behaviour of Al2O3 toughened by Ag particles

被引:16
作者
Tuan, WH
Chou, WB
机构
[1] Inst. of Mat. Sci. and Engineering, National Taiwan University, Taipei
关键词
D O I
10.1016/0955-2219(95)00166-2
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 strength and toughness of alumina can be enhanced by adding silver inclusions. In the present study, the corrosion behaviour of such Al2O3/Ag composites in nitric acid is investigated. The strength of the composites containing 2.5 vol% silver is not affected after the corrosion test. However, the weight loss of the composites containing 10 vol% silver is increased with increasing corrosion time. The strength and the roughness of the composites after corrosion are significantly degraded. For example, the strength of the composites containing 10 vol% silver is decreased by 50% and the toughness by 30%, when the composites are soaked in nitric acid for 1000 h.
引用
收藏
页码:583 / 586
页数:4
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