【摘要】 用复合稳定剂Ｙ２Ｏ３和ＣｅＯ２，制备出了综合性能优异的（Ｙ，Ｃｅ）－ＴＺＰ．性能测试和ＸＲＤ分析表明：在Ｙ２Ｏ３∶ＣｅＯ２＝０．６∶０．４ｍｏｌ附近，复合稳定的效果大于单一稳定剂的作用效果．ｃ－ＺｒＯ２的存在对性能不利，这是由于烧结时ｔ－ＺｒＯ２晶粒向ｃ－ＺｒＯ２相变时，ｃ轴收缩的张应力诱发了裂纹．ｔ－ＺｒＯ２的稳定性太强也会降低性能，因为应力诱导可相变的ｔ－ＺＯ２减少．更多还原

【Abstract】 (Y,Ce)TZP ceramics with better mechanical property were obtained by adding the composite additives of Y₂O₃ and CeO₂. The results of the mechenical test and XRD analysis showed that the stabilized effect of the composite additives near molar ratio Y₂O₃∶CeO₂=0.6∶0.4 is better than that of individual. The existence of the cZrO₂ is harmful to mechanical property of TZP, for the tension stress caused by caxis contraction during the transformation of the tZrO₂ to cZrO₂ introduces the cracks in TZP on heating. Excessive stabilization of tZrO₂ decreases the mechanical properties of the TZP, for the amount of the transformed tZrO₂ reduces.更多还原