固相法合成单相Ba2Ti9O20粉体

无机材料学报, 1998, 13(6): 808-812.

固相法合成单相Ba₂Ti₉O₂₀粉体

姚尧 , 赵梅瑜 , 吴文骏 , 王依琳

上海 200050

Shanghai institute of Ceramics

关键词：固相反应 , null , null

Pure Phase Ba₂Ti₉O₂₀ Powders Prepared by Conventional Processing

YAO Yao , ZHAO Mei-Yu , WU Wen-Jun , WANG Yi-Lin

Keywords： solid reaction, pure Ba₂Ti9O₂₀, homogenization , 单相Ba₂Ti9O₂₀ , 均匀性

本文以BaTiO₃和TiO₂为原材料，采用传统制备工艺，混合后粉料于不同合成温度（800～1150℃）和保温时间（1／60～64h）进行固相合成反应·基于XRD相分析结果，得出合成温度为1000～1150℃、保温时间为4～32h时，反应产物均为单相Ba₂Ti₉O₂₀粉体．并得出：组成元素Ba和Ti分布均匀性是影响Ba₂Ti₉O₂₀生成的一个重要工艺因素．

Pure Ba₂Ti₉O₂₀ powder was prepared by using traditional ceramic technological process with BaTiO₃ and TiO as the starting raw materials. In order to explore
the phase development sequence, the mixed powder of BaTiO₃ and TiO₂ was calcined with different temperatures from 800℃ to 1150℃ and different keeping
hours from 1/60 to 64h, then identified by X-ray powder diffraction. The results show that the pure phase of Ba₂Ti₉O₂₀ can be obtained at 1000～1150℃/4～32h,
and the homogeneity of the constituents is an important processing factor for obtaining pure Ba₂Ti₉O₂₀ powder.

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