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１１８０℃—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增大。
By means of XRD,TEM,SAD and EDS techniques,the effect of TiO 2 and the firing temperature is investigated systematically on the micro-structure of the glazes in the system of K 2O-Na 2O-CaO-MgO-ZnO-Al 2O 3-SiO 2.The results show that the opacity of the glazes is produced by the Liquid-Liquid separation and the recrystalization during 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 addation,the extent of the Liquid-Liquid separation,the amount of droplets and its diameter are increasing when the amount of TiO 2 is increasing.
出处
《中国陶瓷》
CAS
CSCD
北大核心
1997年第5期1-5,共5页
China Ceramics
关键词
钛釉
分相
析晶
陶瓷
资釉
显微结构
Ti opaque glaze Liquid Liquid separation Recrystalization
