快烧无锆分相乳浊釉的形成  

FORMATION OF FAST FIRED PHASE-SEPARATION OPAQUE GLAZES WITH NO ZIRCONIUM

作　　者：李伟东[1] 黄建国[2] 孙承绪[1] 张樵英[3] 

机构地区：[1]华东理工大学材料学院,上海200237 [2]中国科学院上海硅酸盐研究所,上海200050 [3]华侨大学材料学院,福建泉州362011

出　　处：《硅酸盐学报》2001年第3期282-285,共4页Journal of The Chinese Ceramic Society

基　　金：国家自然基金资助项目 !(5 970 2 0 12 ) ;福建省自然科学基金资助项目!(E970 14 ;F990 2 2 )

摘　　要：选择适合一次快速烧成的R2 O(K2 O ,Na2 O) -RO(CaO ,MgO ,ZnO) -Al2 O3-B2 O3-SiO2 系统 ,通过优化组成设计及物理化学过程的控制 ,实现了釉的自生分相乳浊 .实验结果表明 :快烧所得乳浊釉的分相结构中 ,一相富R2 + ,贫Si4+ ,B3+ 和Al3+ ;另一相则相反 .当(SiO2 +B2 O3)含量较高时 ,形成孤立液滴状分相结构 .釉面白度在 75以上的釉 ,其分相结构的共同特点为 :孤立相呈均匀分布的球滴状 (平均长短径比值z<1.2 ) ,其体积分数 φp 超过 3 5 % ,球滴的平均等效直径D落在 0 .15～ 1.3 2 μm范围内 ,接近可见光的波长范围 。The multi-component system R2O (K2O, Na2O)-RO(CaO, MgO, ZnO)-Al2O3-B2O3-SiO2 which fits for single fast firing cycle was adopted. Through optimizational composition design and control of the physical chemistry process, the spontaneous opacification of glaZes was realized. It is found that in the phase-separation structure of fast-fired opaque glazes, one phase is rich in R2+ and poor in Si4+, B3+, Al3+, the reverse is true for the other phase. Isolated droplet structure forms with a comparatively high (SiO2+B2O3) concentration. The common features for glazes with whiteness higher than 75 are that the spherical isolated droplets (average slenderness ratio zp higher than 35% and the average equivalent diameter of droplets fall in the range of 0.15-1.32 μm, which is close to the wavelength range of the incident visible light, thus favors intensifying opacification effect.

关 键 词：快烧无锆分相乳浊釉 乳浊釉 分相釉 快速烧成 乳浊机理 陶瓷 

分 类 号：TQ174.614[化学工程—陶瓷工业] TQ174.43[化学工程—硅酸盐工业]