【摘要】 四方氧化锆陶瓷（ＴＺＰ）通过相变增韧具有很高的强度和断裂韧性，但在中高温下由于相变增韧作用的逐渐消失，力学性能迅速下降。在ＴＺＰ基体中加入第二相粒子成为复合材料，是提高ＴＺＰ韧性和高温力学性能的有效方法。本文综述了晶须、颗粒和片晶增强ＴＺＰ复合材料的增韧机理、性能改善的效果、以及存在的问题，展望了今后的研究方向。更多还原

【Abstract】 Tetragonal zirconia polycrystals (TZP) have excellent strength and fracture toughness due to transformation toughening.However,at medium and high temperatures,their mechanical properties decreased rapidly because of the degradation of phase transformation toughening.The addition of second phase particles to TZP matrix as a ceramic composite is an effective way to improve the toughness and high temperature properties of TZP. This paper reviews the toughening mechanisms of whisker-,particle and platelet- reinforced TZP matrix composites,and the effects of improving properties and remaining problems;besides,it looks forward to the future research tendency.更多还原