中文摘要：

以TiO2、CaCO3和Bi2O3为原料，加入NaCl和KCI（物质的量比为1：1）为熔盐，采用熔盐法制备CaBi4Ti4O15片状晶体。研究了熔盐含量、合成温度以及保温时间对制备CaBi4Ti4O15片状晶体的影响，并对其反应机理进行了初步的探讨。结果表明，当熔盐质量分数为30％时开始生成CaBi4Ti4O15当熔盐质量分数增加到40％左右时可获得较纯的CaBi4Ti4O15相。熔盐含量对钛酸铋钙晶体的形貌有一定的影响，随着熔盐含量的增加，CaBi4Ti4O15片状晶体逐渐长大，各向异性程度增大。合成温度的升高和保温时间的延长有利于CaBi4Ti4O15片状形貌的形成。制备完整片状形貌的CaBi4Ti4O15晶体的最佳熔盐含量为40％，合成温度为1150℃，保温时间为4h。

英文摘要：

The prepare plate-like CaBi4Ti4O15 microcrystal is prepared with TiO2, CaCO3 and Bi2O3 as raw materials, NaCl and KCI （molar ratio 1 ： 1） as the molten salt by molten salt method. The effects of salt-to-raw materials ratio, synthesis temperature and soaking time on preparation of plate-like CaBi4Ti4O15 crystals are investigated, and the mechanism of reaction is approached preliminary. The results show that CaBi4Ti4O15 crystals are synthesized initially when salt-to-raw materials ratio is 30%, relatively pure CaBi4Ti4O15 crystals are obtained when the content of molten salt increases to 40 %. The shape of CaBi4Ti4O15 is affected by the Content of molten salt, with the increasing of molten salt content, the plate-like CaBi4Ti4O15 crystals gradually increases, anisotropy becomes obviously. The increase of synthesis temperature and the extension of soaking time are also beneficial for the formation of plate-like CaBi4Ti4O15 powder. The best synthesis parameters for integrated plate-like CaBi4Ti4O15 powder are as following： the molten salt content is 40%, the synthesis temperature is 1150℃ and the soaking time is 4h.