摘要
用初级二氧化钛和碳酸钡为原料，经提纯、活化、共沉淀形成ＢａＣＯ３·ＴｉＯ２固／固包裹体、煅烧等工序后，低成本高质量地制备高纯微细电子级钛酸钡粉体．ｋｇ级试验制取钛酸钡粉体的主要技术经济指标如下：钛酸钡纯度：≥９９．６Ｏ％、最好的达到９９．８Ｏ％；平均粒度：≤４．５μｍ（不磨）；煅烧温度：９６０℃；成瓷温度：２Ｅ瓷料１２７０～１２９０℃，２Ｆ瓷料３５０℃；介电常数：２Ｅ瓷料６０１１－６４４６；２Ｆ瓷料１５１５０～１７０４４３；
When primary titanium dioxide and barium carbonate were used as raw materials,BaTiO3 powder was prepared with solid / liquid phase synthesis method by following processes:purifying, activating, co-preciptiaing to form BaCO3. TiO2 solid / solid phase coating and calcining. The powder was in low cost and high quality. The main technological and economical morns of the experiments in the scale of kilograms were as follows:BaTiO3 Purity: 99.6-99.8%Mean particle size: 4.5 μm(no grinding)Calcining temperature:960 ℃Ceramic sintering temperature: 2E porcelain 1270-12900℃Ceramic sintering temperature: 2E porcelain 1270-1290℃2Fporcelain 1350℃Dielectric constant: 2E porcelain 6011-64462F porcelain 15150-170443
出处
《昆明理工大学学报（理工版）》
1996年第6期56-61,共6页
Journal of Kunming University of Science and Technology(Natural Science Edition)
基金
云南省自然科学基金
关键词
微细粉
钛酸钡
制备
固/液相合成法
BaTiO3powder preparation, solid / solid phase coating, precursor
