文献类型：期刊文献

中文题名：组份均匀分布的球形实心钛酸钡超细粉体的喷雾水解反应法制备和表征

英文题名：Preparation and Characterization of Spherical, Solid Barium Titanate Ultrafine Powders with Uniform Composition by Spray Hydrolysis Reaction

作者：徐华蕊[1];高濂[1];郭景坤[1];古宏晨[2]

机构：[1]中国科学院上海硅酸盐研究所高性能陶瓷与超微结构国家重点实验室,上海200050;[2]华东理工大学技术化学物理研究所,上海200237

年份：2002

卷号：17

期号：5

起止页码：938

中文期刊名：无机材料学报

外文期刊名：Journal of Inorganic Materials

收录：CSTPCD;;EI(收录号：2002487245745);Scopus;WOS:【SCI-EXPANDED(收录号:WOS:000178320900006)】；北大核心:【北大核心2000】；CSCD:【CSCD2011_2012】；

基金：国家自然科学基金(29676009;29636010)

语种：中文

中文关键词：球形实心;钛酸钡;超细粉体;制备;表征;喷雾水解反应法;组份分布;草酸二甲酯;电子陶瓷

外文关键词：spray hydrolysis reaction; barium titanate; composite distribution; dimethyl oxalate

摘要：采用喷雾水解反应法得到粒径在0.5～2μm之间球形实心、单个粉体内钡钛比也完全均匀的钛酸钡粉体.实验结果表明,水解反应和沉淀反应段的温度及长度、和草酸二甲酯的浓度是影响产物保持球形和组份是否均匀的主要因素.采用喷雾水解反应法获得理想钛酸钡超细粉体的工艺条件为:反应段温度>85℃,反应段停留时间>3s;DMO浓度>0.75mol/L.
The spherical, solid BaTiO3 powders with 0.5similar to 2mum and uniform composition were prepared by the spray hydrolysis reaction method. The main factors on the preparation of solid and uniform composition powders are reaction temperature and time, and the concentration of dimethyl oxalate (DMO), which is the inter-precipitator. The optimum conditions for the preparation of ideal powders are that the reaction temperature is more than 85degreesC, and the time is more than 3s, and the concentration of DMO is more than 0.75 mol/L.