14%mol Ce-TZP and Al_2O_3/Ce-TZP Layered Microcomposites

Through the testing of KIC value of 14mol%Ce-TZP and Ce-TZP/Al2O3 layered microcomposites with different fabric parameters, the influence of Al2O3 layer thickness and Ce--TZP contentin Al2O3 layer on the mechanical property of the materials was analysed in material and mechanicsperspective. In order to obtain the qulitatively explanation of the influence of Al2O3 layer on thetransformation zone shape and transformation quantity, the Laser-Ramman Micro Zone analysison the section and side of KIC sample fractured was adopted, thus the toughening mechanism ofmaterials such as Ce-TZP/Al2O3 layered microcomposites can be expected.