中文摘要：

采用熔盐法制备了板状Bi4Ti3O12微晶。用示差扫描量热热重分析（DSC-TG）、X射线衍射（XRD）及扫描电镜（SEM）研究了不同温度对合成Bi4Ti3O12相结构与形貌的影响。结果表明，板状Bi4Ti3O12），2微晶的最佳合成温度为800-1000℃，低于800℃合成产物中容易出现杂相；1030℃时Bi4Ti3O12出现结构变化；1165℃出现杂相Na0.5Bi8.5Ti7O27；温度继续升高到1250℃时Bi4Ti3O12出现分解。实现板状Bi4Ti3O12微晶形貌可控的最佳温度范围为850～950℃。

英文摘要：

Bi4Ti3O12 platelets are synthesized by molten salt method. Phase evolution of Bi4Ti3O12 platelets is analyzed by differential scanning calorimeter and thermo gravimetric（DSC-TG）, X-ray diffraction（XRD） and scanning electron mieroscope（SEM）. The results show that the best temperature range forBi4Ti3O12platelets synthesized is 800-1000℃. Below 800℃, impurity emerges; at 1030℃, the structure of part of Bi4TiaO12transforms; at 1165℃, Na0.5 Bi8.5 TiT O27 forms; when the temperature increases to 1250℃, Bi4 Ti3 O12 decomposes. The best temperature range of Bi4 Ti3 O12 morphology controlling is 850-950℃.