酸处理及二次焙烧温度对钛酸钾晶须结构及形貌的影响  

Effects of Acid Treatment and Calcination Temperature of Second Step on the Crystallinity and Morphology of Potassium Titanate Whiskers

作　　者：石莉萍[1] 栗中 刘纯[1] 王丽君[1] 

机构地区：[1]北华大学,吉林132013 [2]吉林信息工程学校,吉林132000

出　　处：《人工晶体学报》2013年第9期1913-1917,共5页Journal of Synthetic Crystals

基　　金：吉林省科技发展计划项目(201105042);吉林省教育厅"十二五"规划项目(吉科教合字[2011]第140号)

摘　　要：本文利用不同的处理方法制备了六钛酸钾晶须,并通过XRD及SEM对样品进行表征,研究了酸处理条件以及二次焙烧温度对晶须结构及形貌的影响。实验表明:随着pH值的降低,六钛酸钾含量逐渐升高;随着二次焙烧温度的升高,晶须的长径比以及形貌逐渐变差。利用pH=4的盐酸处理(80℃、10 h)、600℃焙烧(2 h),可得到形貌良好的高纯度六钛酸钾晶须。The potassium hexatitanate whiskers were prepared by different processing method, and the effects of acid treatment and calcination temperature of second step on the crystallinity and morphology of the rosuhant potassium titanate whiskers were investigated by X-ray diffraction （XRD） and scanning electron microscopy （SEM）. The results show that the content of potassium hexatitanate whiskers increased with the decrease of pH value, and the ratio of average diameter to average length and morphology got worse with the increase of calcination temperature. The potassium hexatitanate whiskers with high quality and low cost were prepared by acid treatment at pH =4 （80 ℃,10 h） and calcination at 600℃ （2 h）.

关 键 词：六钛酸钾 晶须 烧结法 酸处理 煅烧温度 

分 类 号：O614.411[理学—无机化学] TB34[理学—化学]