(1. 华东理工大学 材料科学与工程学院， 上海 200237；
2. 上海交通大学 纳米科学与技术工程中心， 上海 200030)
摘 要: 用喷雾干燥-烧结法一次煅烧直接合成了长径比大于10， 形貌优良的六钛酸钾晶须，研究了钛钾比、 煅烧温度以及保温时间对晶须生长的影响。 得出制备六钛酸钾晶须的最佳条件： TiO2与K2CO3的摩尔比为5.5， 煅烧温度为1150℃， 保温时间为10h。
关键字: 晶须; 喷雾干燥; 烧结法; 六钛酸钾
（1. Institute of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China;
2. Engineering Center of Nano Science and Technology, Shanghai Jiaotong University, Shanghai 200030, China）
Abstract:Potassium hexatitanate(K2Ti6O13) whiskers with an average length-diameter ratio more than 10 were directly synthesized by spray-drying-calcination process and subsequent boiling water treatment. The influences of calcining heat, calcining time and molar ratio of TiO2 to K2CO3 on the formation of K2Ti6O13 whiskers were investigated. The optimum conditions for whisker formation are a molar ratio of TiO2 to K2CO3 of 5.5, calcining temperature of 1150℃ and calcining time of 10h.
Key words: whisker; spray-drying; calcination; potassium hexatitanate
