低温烧成硼分相生料乳浊釉的研制  

DEVELOPMENT OF LOW TEMPERATURE SINTERING B_2O_3 PHASE SEPARATION RAW OPAQUE GLAZE

作　　者：包镇红[1] 苗立锋[1] 江伟辉[1] 

机构地区：[1]景德镇陶瓷学院国家日用及建筑陶瓷工程技术研究中心,景德镇333001

出　　处：《中国陶瓷》2011年第12期67-69,76,共4页China Ceramics

摘　　要：以高岭土、石英、长石、天然硼钙石、煅烧ZnO等为原料,制备了K_2O-Na_2O-CaO-ZnO-SiO_2-Al_2O_3-B_2O_3系统分相生料乳浊釉,在1140℃低温烧成,釉面白度可达85.8。分别研究了Al_2O_3、B_2O_3和ZnO含量对釉料乳浊度的影响,并通过对优化配方进行TEM、EDS及XRD测试分析,研究了其乳浊机理。结果表明,随着Al_2O_3含量降低,B_2O_3含量提高,釉面白度有增高趋势;釉层中均匀分散着大量粒径为100nm左右的球形液滴状乳浊粒子,其与基体之间的较大折射率差是釉面产生较高乳浊的主要因素。The phase separation raw opalescent glaze was prepared in K_2O-Na_2O-CaO-ZnO-SiO_2-Al_2O_3-B_2O_3 system as kaolin,quartz,feldspar,borocalcite and calcined zinc oxide as raw materials.The whiteness of glaze can reach 85.8 when the sintering temperature is 1140＇C.The effects of Al_2O_3,B_2O_3,and ZnO contents on the opacification were studied.The opacifying mechanism was also analyzed on the optimum formula by TEM,EDS and XRD.The results indicate that the whiteness improved with the decreasing of A1_2O_3 contents and the increasing of B_2O_3 contents.The large amounts of spherical liquid droplets with 100nm were dispersed in glaze layer,which have large refractive index difference resuled in high opacification.

关 键 词：低温 乳浊釉 分相 

分 类 号：TQ174.614[化学工程—陶瓷工业]