液相法制备纳米ZrO_2粉体的热处理  

Heat Treatment During Preparation of Nano-zirconia Powders by the Liquid-phase Process

作　　者：艾德生[1] 李庆丰[1] 袁伟[1] 戴遐明[1] 

机构地区：[1]清华大学核能技术设计研究院精细陶瓷研究室,北京100084

出　　处：《过程工程学报》2002年第4期330-334,共5页The Chinese Journal of Process Engineering

基　　金：清华大学骨干人才研究支持计划项目(编号: S1106);清华大学核研院基础研究基金支持项目(编号:985043021)

摘　　要：用改进的液相法在不同热处理工艺下制备了纳米ZrO2粉体. 样品的TEM,SAXS,BET和XRD分析结果表明, 热处理对纳米ZrO2粉体性能的影响是显著的. 结合实验与理论分析, 得出粉末颗粒长大、团聚的机制与热处理对成份、粒度及微观结构变化均有影响.Nano-ZrO2 powders were prepared by the modified precipitate method under various heating treatment conditions. TEM, SAXS, BET and XRD analyses indicated that the influence of heat treatment on the performance of nano-ZrO2 is notable. Combining the experimental results and theoretical analysis, the mechanism of particles?growth and aggregation, and the effect of heat treatment upon the change of composition, granularity and microstructure were proposed.

关 键 词：液相法 纳米ZRO2粉体 制备 热处理 性能 

分 类 号：TQ134.12[化学工程—无机化工]