伊利石型粘土性能及其在高压绝缘子瓷中的应用研究

The Study on the Illite-structure Clay Performance and Its Application for High-tension Insulator

借助于DTA、XRD、SEM等手段,系统研究了伊利石型粘土的显微结构、矿物组成、理化性能和工艺特征。结果表明:此类粘土具有高钾、钠、烧失量小等特点,它主要由2∶1型复合层状结构的粘土矿物组成,在坯体中可单独作为复合熔剂使用,具有降低烧成温度,有效提高坯体强度和绝缘性能的作用,是制作高压绝缘子瓷的理想原料。

The microstructure,the minerals composition,the physicochemi cal and technologicalcharacteristics of illitestructured clay has been studied systematically by means of DTA,XRD,SEM,etc.The results show that the clay has low IL,high content of potassium and sodium,the main mineral composition has 2∶1 layer structure,it acts as a composite flux in the procedure of sintering if used only,with merit of reducing sintering temperature,enhancing the strength and insulating performance of the body.So it′s an ideal raw material for hightension insulator.