纳米ZrO_2的超声沉淀法制备与表征  

Preparation and Characterization of Nanometer Zirconia by Ultrasound and Precipitation

作　　者：姜奉华[1] 郑少华[1] 王介强[1] 陶珍东[1] 张学旭[1] 

机构地区：[1]济南大学 材料科学与工程学院,山东济南250022

出　　处：《济南大学学报（自然科学版）》2006年第1期19-21,共3页Journal of University of Jinan(Science and Technology)

基　　金：济南大学科技基金(Y0402)

摘　　要：将超声辐射应用于以氯氧化锆(ZrOCl2·8H2O)和氨水(NH3·H2O)为原料的沉淀法制备纳米ZrO2粉体的工艺过程,制备出纳米ZrO2粉体。通过XRD、DTA／TG和SEM等技术研究了纳米ZrO2的合成过程及粉体性能。结果表明:超声辐射引入普通沉淀法,超声波的空化作用可使前驱体颗粒细化,抑制其团聚并延缓其向凝胶转变,从而可制备出ZrO2 纳米粉体;这种方法所得纳米ZrO2粒子外貌为球形,粒度分布均匀,分散性好。Nano-sized zireonia powders were prepared by precipitation method in the ultrasound field using ZrOCl2·8H2O and NH3·H2O as raw materials. The synthetic process and properties of nanometer ZrO2 were studied by XRD, DTA/TG and SEM. The resuits show that the ultrasonic radiation can fine the precursor, reduce it agglomeration, and slow down the speed of change to gel. Ultrasonic radiation can refine ZrO2 nano-sized particles effectively. The product was sphere-shaped particles with good dispersity.

关 键 词：超声 纳米ZRO2 制备 表征 

分 类 号：TB383[一般工业技术—材料科学与工程]