(1. 華東理工大學 材料科學與工程學院， 上海 200237；
2. 上海交通大學 納米科學與技術(shù)工程中心， 上海 200030)
摘 要: 用噴霧干燥-燒結(jié)法一次煅燒直接合成了長徑比大于10， 形貌優(yōu)良的六鈦酸鉀晶須，研究了鈦鉀比、 煅燒溫度以及保溫時間對晶須生長的影響。 得出制備六鈦酸鉀晶須的最佳條件： TiO2與K2CO3的摩爾比為5.5， 煅燒溫度為1150℃， 保溫時間為10h。
關(guān)鍵字: 晶須; 噴霧干燥; 燒結(jié)法; 六鈦酸鉀
（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
