高岭土在锂质耐热瓷中的应用研究

Study Of Gaolin Used In The Spodumene Matrix Thermal Resistant Ceramic

研究了高岭土对锂辉石质耐热瓷烧成制度与性能的影响以及热膨胀系数变化的机理。结果表明:加入30％-40％的高岭土可以有效地改善料浆的性能,拓宽材料的烧成温度范围,在保持材料具有一定抗热震性的基础上,抗弯强度得到较大提高。

Thc effect of Kaolin on sintering process of spodumenc matrix thermal resistant ceramics and on the propersities of the sintcred bodies was studied in the paper. The results showed that it greatly improve stcadity of slip, widen the sintcring temperature field of the mate. 4al and improve the bending strength of the material which based on the material having certain thermal shock resistance that Kaolin is added. And the anthors inquired into the best kaolin added and the appropriate conditions of sintering and investigated the mechanism of thermal expansion.