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。
Potassium hexatitanate(K_2Ti_6O_(13)) 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 TiO_2 to K_2CO_3 on the formation of K_2Ti_6O_(13) whiskers were investigated. The optimum conditions for whisker formation are a molar ratio of TiO_2 to K_2CO_3 of 5.5, calcining temperature of (1 150 ℃) and calcining time of 10 h.
出处
《中国有色金属学报》
EI
CAS
CSCD
北大核心
2004年第F01期363-368,共6页
The Chinese Journal of Nonferrous Metals
关键词
晶须
喷雾干燥
烧结法
六钛酸钾
制备
whisker
spray-drying
calcination
potassium hexatitanate
