中、高温钛乳浊釉显微结构的研究  

Studies on the Microstructure of Ti-Opaque Glazes at Moderate or High Firing Temperature

作　　者：王春玲 罗宏杰[2,3] 封鉴秋[2,3] 高力明 

机构地区：[1]江苏省建材设计研究院 [2]西北轻工业学院材料工程系 [3]郑州大学建工学院建材系

出　　处：《硅酸盐通报》1997年第4期10-13,56,共5页Bulletin of the Chinese Ceramic Society

摘　　要：应用ＸＲＤ、ＴＥＭ、ＳＡＤ及ＥＤＳ等测试技术，系统地研究了ＴｉＯ２及烧成温度对Ｋ２Ｏ－Ｎａ２Ｏ－ＣａＯ－ＭｇＯ－ＺｎＯ－Ａｌ２Ｏ３－ＳｉＯ２系瓷釉显微结构的作用。结果表明，在１１４０～１２２０℃烧成时，瓷釉中都存在分相与析晶现象，液滴相富含Ｔｉ４＋、Ｃａ２＋、Ｚｎ２＋，而基体玻璃相富含Ｓｉ４＋，析出的晶体主要为钛榍石。随烧成温度的提高，析出晶体的数量不断减少。另外，当ＴｉＯ２加入量增加时瓷釉的分相程度、液滴数量及尺寸将随之而增大。By means of XRD,TEM,SAD and EDS technique,the effect of TiO 2 and the firing temperature on the micro-structure of glazes in the system of K 2O-Na 2O-CaO-MgO-ZnO-Al 2O 3-SiO 2 is investigated systematically The results show that the opacity of the glazes is produced by the liquid-liquid separation and recrystalization at the firing temperature of 1140-1220℃.The droplet phase is rich in Ti 4+ ,Ca 2+ and Zn 2+ and the matrix phase is rich in Si 4+ .The main recrystal phase is sphene.The amount of the recrystals is decreased when the firing temperature is higher.In addition,the extent of the liquid-liquid separation,the amount of droplets and their size are increased when the amount of TiO 2 is increased.

关 键 词：钛釉 分相 析晶 陶瓷 瓷釉 显微结构 

分 类 号：TQ174.43[化学工程—陶瓷工业]