YU Qinghua ¹, YIN Qian ¹, WANG Jieqiang ², ZHENG Yu ¹
(1. Shandong Urban Construction Vocational College, Jinan 250103, Shandong, China; 2. School of Materials Science and
Engineering, Jinan University, Jinan 250014, Shandong, China)

Abstract: The ultra fine zirconia/alumina powders were prepared by the liquid-phase precipitation method. Using the self-prepared powders,ZTA ceramics were fabricated. The dramatic influences of zirconia amounts on the properties of ZTA composites were analyzed. It is found that different zirconia amounts had different influence on the microstructure and the mechanical properties of ZTA. When the addition of zirconia was 15vol.%, the bending strength and fracture toughness of ZTA could reach 650 MPa and 7.5 MPa • m^1/2 respectively.
Key words: ZTA ceramics; liquid-phase precipitation method; nanocomposites; mechanical properties