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本文主要通过对含有14mol％CeO2的Ce－TZP及不同结构参数的Ce－TZP／Al2O3层状复合材料断裂韧性的测试，从力学和材料角度出发分析Al2O3层厚及Al2O3层中Ce－TZP的含量对材料力学性能的影响．同时通过对KIc试样断裂后断面及受力侧面的激光拉曼微区分析，来定性解释Al2O3层的引入对Ce－TZP相变区形状及相变量的影响，从而揭示此类材料的增韧机制．
In this paper, the fracture toughness of Ce-TZP / Al2O3 layered composites containing Ce-TZP with 14 mol% CeO2 and Ce-TZP / Al2O3 with different structural parameters were mainly analyzed from the aspects of mechanics and material, and the content of Ce-TZP Effect on material mechanical properties. At the same time, the laser Raman microanalysis of the fracture surface and force-bearing side of KIc specimen is used to qualitatively explain the influence of Al2O3 layer on the shape and phase-change of Ce-TZP phase transformation zone, so as to reveal the toughening mechanism.