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Mechanical properties of Al2O3 + ZrO2 + nano-SiCp ceramic composites |
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| Authors: | L Tian Y Zhou TC Lei |
| Affiliation: | School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, People's Republic of China |
| Abstract: | The mechanical properties of Al2O3 matrix composites reinforced by ZrO2(2 mol% Y2O3) and nanometre scale SiC dispersions have been investigated. It is shown that the Al2O3 matrix is simultaneously strengthened and toughened by both ZrO2(2 mol% Y2O3) and nano-SiC particles. The maximum flexural strength and fracture toughness of the composites are 945 MPa and 7.3 MPam1/2, respectively. The reinforcing effect of both t-m phase transformation of ZrO2 (2 mol% Y2O3) and nano-SiC particles appears to be synergetic. |
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