中文摘要：

Nanocrystalline 氧化锆(ZrO ₂) 粉末被退火跟随的一个 sol–gel 过程准备从 500 ～ 1200 °C 的处理。阶段转变，微结构特征和光致发光性质被 X 光检查衍射，传播选举显微镜学和光致发光系列分别地描绘。单斜晶的阶段和四角形的阶段在 nanocrystalline ZrO ₂ 存在的结果表演在退火搽粉在 500 –900°C 的范围的温度，和单斜晶的阶段的集中与增加退火的温度增加。当退火的温度直到 900 °C 时，四角形的阶段完全被转变到单斜晶的阶段。当退火的温度增加时，粉末的平均谷物尺寸也增加。二座排放山峰在 390nm 集中了(当，说出我 ₃₉₀) 和 470nm (当，说出我 ₄₇₀) 在光致发光系列，和紧张比率存在我 ₃₉₀ 到我有增加退火的 ₄₇₀ 减少温度。谷物尺寸被建议为在 nanocrystalline ZrO ₂ 粉末的阶段转变负责。

英文摘要：

Nanocrystalline zirconia （ZrO2） powders were prepared by a sol-gel process followed by annealing treatments from 500 to 1200 ℃. Phase transformation, microstructural features and photoluminescence properties were characterized by X-ray diffraction, transmission election microscopy and photoluminescence spectra, respectively. The results show that both monoclinic phase and tetragonal phase exist in the nanocrystalline ZrO2 powders at annealing temperature in the range of 500-900 ℃, and the concentration of monoclinic phase increases with increasing the annealing temperature. Tetragonal phase is totally transformed to monoclinic phase when annealing temperature is up to 900 ℃. The average grain size of the powders also increases when annealing temperature increases. Two emission peaks centered at 390 nm （named as /390） and 470 nm （named as /470） exist in the photoluminescence spectra, and the intensity ratio of /390 to /470 decreases with increasing annealing temperature. The grain size is proposed to be responsible for the phase transformation in the nanocrystalline ZrO2 powders.