摘要: 以 ZrOCl₂·8H₂O 为原料，用乙醇和聚乙二醇两种有机溶液处理，在化学共沉淀阶段使用超声波辐照制备 MO 稳定 ZrO₂ 超细粉，通过 X 射线衍射(XRD)、激光粒度分析、扫描电子显微镜(SEM)和差热分析(DSC)等手段对试样的微观结构进行表征。试验结果表明，用超声波辐照制备合成 MgO 稳定 ZrO₂超细粉，其结晶温度低粉料的分散性好,不易团聚

关键词: 纳米材料 ;超声波;共沉淀法;二氧化错

Abstract: The superfine ZrO₂ - MgO powder is prepared by ultrasonic sedimentation method, taking ZrOCl₂ : 8H₂O as raw material and treated by alcohol and polyglycol. The microstructural characteristics of superfine powderare determined by means of X - ray diffraction analysis (XRD) andlaser sizeanalysis, scanning electronic microscope (SEM), and differential scanningcalorimeter (DSC). The result show that the ultrasonic sedimentation methodwhich is applied to prepare superfine ZrO₂ - MgO powder can lead to a sub-stantial decrease of crystallization temperature and improvement of dispersionof the powder.

Keywords: nano-sized materials; ultrasonic; sedimentation; zirconia