摘要
采用了易于工业化生产的均相沉淀法制备氧化铈超细粉体,通过正交分析实验初步确定了影响氧化铈晶粒直径的反应因素如反应温度、焙烧温度、反应物(硝酸铈)浓度及焙烧时间等条件.通过比较分散剂PEG(1000)在均相沉淀中的加入量及其加入方式对粉体粒度大小的影响,确定了分散剂的最佳加入量.采用了激光粒度仪,扫描电镜检测手段,对氧化铈粉体的团聚粒度和颗粒显微形貌特征作了表征.
This paper studies the preparation of Ce02 ultrafine powder by homogeneous precipitation process which can be easily implemented industrialization.The optimal technological conditions including reaction temperature,calcination temperature,reactants concentration and calcinations time are determined by orthogonal experimental design.On the other hand,Polyethylene Glycol（PEG） used as dispersing agent in proess is studied.The observation and analysis of microstructure obtaining Ce02 are employed by modern test methods such as XRD,laser particle size analyzer,and SEM.
出处
《西南民族大学学报（自然科学版）》
CAS
2010年第6期1002-1006,共5页
Journal of Southwest Minzu University(Natural Science Edition)
