【摘要】 本研究采用TiCl4和BaCl2 配制混合溶液 ,加入自制混合表面活性剂 ,以NH4HCO3和NH3·H2 O作沉淀剂合成钛酸钡前驱体 ,再经过 1 0 2 0℃煅烧制成超细钛酸钡粉体。研究了物料配比、TiCl4浓度、表面活性剂用量、加料方式、反应温度、煅烧温度等因素对钛酸钡理化指标的影响 ,合成更多还原

【Abstract】 This paper investigated a new preparation process of BaTiO₃ ultra-fine powder used in electronic ceramics.Firstly,preparating a mixing solution of TiCl₄ and BaCl₂.Secondly,the mixing surfactants synthesized by authors were added into the solution,Thirdly,NH₄HCO₃ and NH₃·H₂O were directly added into the solution and got the precursor of barium titanate.Finally,the BaTiO₃ ultra-fine powders were got by drying and calcining the precursor for 1.5 h at 1020℃.The influence of some technological parameters,such as ratio of materials,concentration of TiCl₄,amount of surfactants,loading manner of materials,reaction temperature and calcination temperature on the physical and chemical characteristics of the barium titanate were emphatically discussed.更多还原