以共沉淀法制备了掺杂8mol％MgO，CaO，Y2O3的ZrO2粉料.在1550℃烧结得到致密的部分稳定或稳定ZrO2试样.应用X射线步长扫描衍射数据和Rietveld方法对试样进行了相含量的定量分析.结果表明，相同组份不同金属氧化物稳定的ZrO2试样在烧结后得到不同的相组成，MgO部分稳定ZrO2为立方、四方和单斜三相混合物（17：57：26wt％），CaO部分稳定ZrO2仅包含立方和单斜相（68：32wt％），而Y2O3掺杂ZrO2几乎为纯立方相，四方相仅占3wt％.文中还讨论了晶粒尺寸对ZrO2四方相相变的影响.
ZrO2 powder doped with 8mol% MgO, CaO or Y2O3 was prepared by co-precipitation technique. The densified and partially or fully stabilized ZrO2 ceramics were obtained by sintering the powder under 1550℃. The quantitative analyscs of phase compositions of ZrO2 ceramics were performed based on X-ray profile diffraction data and Rietveld inethod. The results show that ZrO2 ceramics stabilized by MgO, CaO or Y2O3 with the same starting composition possess the different phase contents. MgO partially stabilized ZrO2 consists of cubic, tetragonal and monoclinic phases with the weight ratio of 17:57:26, CaO partially stabilized ZrO2 contains cubic and monoclinic phases with the weight ration of 68:32, Y2O3-doped ZrO2 shows almost a pure cubic phase with only 3wt% tetragonal one, however. In the paper, the influence of grain size on phase transformation of tetragonal to monodlinic of ZrO2 is also discussed.
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