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应用相交增韧、相变－晶须复合及相变－颗粒复合等方式对氧化铝陶瓷进行增韧．遇过各材料强韧性的测试、微观结构的分析以及断口形貌的对比，研究了各材料的断裂特点及不同增韧方式的增韧机理与效果，得出材料的强韧性与其断口形貌密切相关；双重增韧材料中，两种增韧方式不是简单的叠加，而是存在相互作用；同时在性能试验后的材料基体内观察到位借的存在．
Toughening, phase transformation - whisker composite and phase transformation - particle composite methods such as toughening of alumina ceramics. After the test of the toughness of the materials, the microstructure analysis and the comparison of the fracture surface morphology, the fracture characteristics of the materials and the toughening mechanism and effect of different toughening methods have been studied. The results show that the strength and toughness of the materials and the fracture surface morphology are close In the dual toughening materials, the two toughening methods are not simple superposition, but exist the interaction; at the same time, the presence of the pendants is observed in the material matrix after the performance test.