采用传统的陶瓷工艺制备少量掺杂Y2O3,CeO2的Mg-PSZ陶瓷,材料在较低的温度(≤1550 ℃)下烧结致密并实现了微晶化(晶粒尺寸～10 μm).探讨了Y2O3,CeO2的复合稳定作用和1100 ℃热处理过程对材料相组成、显微结构和力学性能的影响.经1100 ℃适当时间热处理,Y2O3,CeO2的复合稳定作用有效抑制亚共析分解反应发生,优化调整c-ZrO2晶粒中的t-ZrO2析出体成核长大过程.断裂特征为穿晶、沿晶兼有,相变增韧和微裂纹增韧的协同效应使材料具有优良的力学性能.
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