Abstract
The effect of converting SiC shape form particle to whisker and addiction of Y_2O_3 on the crack-healing ability and mechanical properties of the SiC particle reinforced alumina composite, which have excellent crack-healing ability, were investigated. Fracture strength at high temperatures as well as at room temperature and fracture toughness have been excellent improved by converting SiC shape. Fracture strength at high temperatures has been also improved by addiction of Y_2O_3. Moreover, Crack-healing ability has not been reduced by converting SiC shape and addiction of Y_2O_3.
