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利用扫描和透射电子显微镜及X-rays衍射仪等,对ZrO2层状复合陶瓷的显微形貌特征、断裂相变量及晶体学位向关系进行了深入研究.研究结果表明,ZrO2层状陶瓷由于界面压应力的作用,抑制了烧结过程中晶粒的生长速度及冷却后四方相向单斜相的转变,提高了可相变四方相的含量,提高了断裂相变量,改善了材料的力学性能,但却没有改变四方相和单斜相之间的晶体学位向关系,在层状ZrO2陶瓷中,(100)m//(010)t的晶体学位向关系仍然存在.

参考文献

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