摘要
采用XRD、DTA-TG、FE-SEM等测试手段对龙岩、临沧和星子这三个产地高岭土的矿物组成和微观结构进行了系统的研究。结果表明:三种高岭土中均含有一定量的多水高岭石,其中临沧高岭土中的多水高岭石含量最多。龙岩高岭土由多水高岭石、高岭石和伊利石组成,临沧高岭土以多水高岭石为主,星子高岭土以高岭石为主。三种高岭土中以星子高岭土的结晶度最高,龙岩高岭土和临沧高岭土的结晶程度较差。龙岩高岭土为片状和管状的混合结构;临沧高岭土中则大多呈卷曲的短管状;星子高岭土大部分为叠片状结构,且颗粒较大。
The mineral composition and microstructure of kaolins from Longyan,Lincang and Xingzi were studied by XRD,DTA-TG and FE-SEM.The results show that all the three kaolins contain a certain amount of halloysite.The halloysite content of Lincang kaolin is higher than that those of others.Longyan kaolin is constituted of halloysite,kaolinite and illite.The main mineral component of Lincang kaolin is halloysite.Xingzi kaolin is mainly composed of kaolinite.Xingzi kaolin has the highest crystallinity of the three.Longyan and Lincang kaolins have poor crystallinity.Longyan kaolin has the mixed structure of sheets and tubes.Lincang kaolin has the structure of short curly tubes.Xingzi kaolin is mainly of sheets in structure,and its crystal grain size is large.
出处
《陶瓷学报》
CAS
北大核心
2014年第1期53-56,共4页
Journal of Ceramics
