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采用ＸＲＤ法研究了摩尔分数为２．０％，２．７５％，３．０％Ｙ２Ｏ３稳定ＺｒＯ２陶瓷经不同的微波加热工艺下相变行为，研究结果表明控制处理温度和时间，可使材料获得较高的可相变四方相量及其断裂强度，最佳处理温度和保温时间分别为１０００～１２００℃和１０ｍｉｎ，研究分析表明可相变四方相含量改善并导致材料强度的提高的微观机理在于微波电磁场对瓷体内部Ｙ３＋置换Ｚｒ４＋后形成电荷不平衡而发生作用，重新对稳定剂的非均匀分布进行调整，强化富钇壳层而对ｔ－ＺｒＯ２施加了附加约束力。
XRD was used to study the phase transition behavior of ZrO2 ceramics with 2.0%, 2.75% and 3.0% Y2O3 stability under different microwave heating conditions. The results show that the controllable temperature and time can make the material obtainable The high phase-changeable tetragon phasor and its rupture strength, the best processing temperature and holding time are 1000 ~ 1200 ℃ and 10min, respectively. The research shows that the micro-mechanism of improving the content of the phase changeable tetragonal phase and leading to the increase of the material strength lies in Microwave electromagnetic field plays an important role in the charge imbalance of Zr4 + after the Y3 + substitution in the ceramic body. The non-uniform distribution of the stabilizer is re-adjusted. The strengthened yttrium-rich shell exerts additional binding force on t-ZrO2.