摘要
利用DTA、XRD等手段对C11A7·CaCl2 的形成进行了研究 ,发现C11A7·CaCl2 在 85 0℃左右开始形成 ,随着煅烧温度的升高 ,C11A7·CaCl2 的形成化合程度逐渐提高 ,但其形成反应速率增加不显著。对C11A7·CaCl2 的形成动力学研究表明 ,C11A7·CaCl2 的形成反应可用Ginstling动力学模型很好地描述 ,其反应活化能为 5 0 5kJ·mol 1,处于一般化学反应活化能数值的下限 。
The formation of C 11 A 7·CaCl 2was studied by DTA and XRD.Results show that it forms at about 850℃.The compound degree of C 11 A 7·CaCl 2 upgrades gradually and the reaction rate increases very gradually with the increase of the sintering temperature.The study of kinetics indicates that the formation reaction of C 11 A 7·CaCl 2 can be well depicted by Ginstling Kinetics Model,and its activation energy is 50.5kJ·mol 1 ,which is in the lower limit of the one of general chemistry.Therefore,the reaction rate increases slowly with a rise in sintering temperature.
出处
《硅酸盐通报》
CAS
CSCD
2001年第3期55-57,共3页
Bulletin of the Chinese Ceramic Society
