用X射线衍射仪和透射电镜研究了粒径和Y,Ce掺杂元素对ZrO2纳米粉相结构的影响.结果表明,在室温下平均粒径为～10nm的ZrO2粉单斜相不足20v.%,而加入2mol%Y2O3或2mol%CeO2可使单斜相更少.试验测得纯ZrO2,ZrO2-2mol%CeO2,ZrO2-2mol%Y2O3纳米粉在室温下单斜相和四方相保持平衡共存的临界粒径分别为17.5,21.0和32.5nm.
The effect of crystallite size and Y. Ce dopants on phase structure of nano-sized ZrO2 powders has been investigated by XRD and TEM methods. The results show that the volume fraction of m phase is less than 20% at room temperature for pure Zro2 powder wi
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