Mechanical and Wear Properties of Al2O3-15wt%ZrO2 Composites |
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| Journal | Key Engineering Materials (Volumes 280 - 283) |
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| Volume | High-Performance Ceramics III |
| Edited by | Wei Pan, Jianghong Gong, Chang-Chun Ge and Jing-Feng Li |
| Pages | 1049-1052 |
| DOI | 10.4028/www.scientific.net/KEM.280-283.1049 |
| Citation | Ping Gen Rao et al., 2007, Key Engineering Materials, 280-283, 1049 |
| Online since | February, 2007 |
| Authors | Ping Gen Rao, Jian Qing Wu, Jian Dong Ye, Ying Jun Wang, Mikio Iwasa |
| Keywords | Al2O3, Mechanical Properties, Wear, Zro2 |
| Abstract | A commercial a-alumina powder was mixed with Zr(OH)4 gel synthesized by a precipitation method. The mixture was calcined at 600°C for 2h. The Al2O3−15 wt% ZrO2 composites were sintered for 2 h in the temperature range between 1400°C and 1650°C in air. At the sintering temperature of 1550°C the highest density, the best wear resistance, the maximum bending strength of 708 MPa and the highest fracture toughness of 5.8 MPa×m1/2 were achieved, respectively. Improvement of the mechanical and wear properties of the Al2O3 matrix should mainly be attributed to the addition of ZrO2. |
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