中文摘要：

为降低合成温度，制备纯度高及结晶性好的六钛酸钾（K2Ti6015）晶须，以分析纯的K2C03、Ti02和KC1为原料，按照三者物质的量比为1：5．5：5．5配比称取原料，分别经过研磨、过0．25mm（60目）筛后，放入球磨罐中干混。将混合好的物料放入刚玉坩埚分别加热至650—1100保温2h，然后随炉冷却至室温。利用TG—DSC、XRD、SEM等分析了合成条件对晶须生长过程和形貌的影响。结果表明，采用KC1熔盐法在900℃可以合成纯度较高的K2Ti6O13单晶，晶须生长质量好、分散性高；KCl在合成过程中不参与反应，但能够降低体系液相形成温度，促进K2CO3的熔化、分解以及钛酸钾的合成速度。

英文摘要：

Analytically pure K2CO3 ,TiQ and KCI were used as starting materials, batched by the mole ratio of 1 ： 5.5 ： 5.5, ground, screened （0.25 mm, 60 mesh）, dry-mixed in a ball miller to prepare high-purity good-crystalline potassium hexatitanate whiskers at low synthesizing temperature. The mixed materials were heated in a corundum crucible at 650-1 100℃for 2 h and then cooled to room temperature. Effects of synthesizing conditions on whisker growing process and morphology were researched by TG-DSC, XRD and SEM. The results show that high purity,good quality and good-dispersivity K2Ti6O13 single crystals can be synthesized by KCI molten salt method at 900 ℃;KCI does not participate in the reaction during synthesis but decreases the liquid forming temperature of the system, promoting the melting and decomposition of K2 CO3 and increasing the synthesizing rate of potassium titanate.