磷硼多相乳浊釉的乳浊机理  

OPACIFYING MECHANISM ON B_2O_3 AND P_2O_5 MULTIPHASE OPALESCENT GLAZE

作　　者：李强[1] 王芬[1] 罗宏杰[2] 朱建锋[1] 

机构地区：[1]陕西科技大学材料科学与工程学院,西安710021 [2]中国科学院上海硅酸盐研究所,上海200050

出　　处：《硅酸盐学报》2010年第5期924-930,共7页Journal of The Chinese Ceramic Society

基　　金：国家自然科学基金(50672056)资助项目;陕西科技大学研究生创新基金资助项目

摘　　要：以Ca3(PO3)2、滑石、石英及硼熔块为基本组成,采用四角配料法制备了R2O–RO–Al2O3–SiO2–P2O5–B2O3体系多相乳浊釉。通过X射线衍射及扫描电镜分析,研究了不同B2O3与P2O5的质量比和烧成温度对釉面性能及釉的显微结构等的影响,并对磷硼多相乳浊釉的乳浊机理进行了分析。结果表明:在磷酸钙的质量含量为3%～15%,B2O3与P2O5的质量比为1/2～2区域,在1200℃烧成可以得到白度较高的乳浊釉;B2O3/P2O5质量比不同时,釉熔体产生多次不混溶相,出现微相功能转换,乳浊度也随之改变;B2O3与P2O5的质量比为1时,因微相转换,釉中分相小滴相对较多,尺寸与可见光相近,且分散性高,使釉对光的折射与散射能力强,釉面呈现高乳白效果,白度可达87。The multiphase opalescent glaze was investigated in R2O–RO–Al2O3–SiO2–P2O5–B2O3 system with Ca3（PO3）2, talc, quartz and B2O3 frit as raw materials. The effects of the composition, B2O3 to P2O5 mass ratio and sintering temperature on the capability and macrostructure of the glaze were studied by scanning electron microscopy, and X-ray diffraction. The opacifying mechanism of phosphor-boron multiphase opalescent glaze was also analyzed. The results indicate that the ultra-white opalescent glaze can obtained when B2O3 to P2O5 mass ratio is in the region of 1/2–2, Ca3（PO3）2 mass fraction is at 3%–15%, and the sintering temperature is 1 200 ℃. Moreover, the opacification of the glaze would change with multiphase system and the transition of the microphase function due to the different B2O3 to P2O5 mass ratios. When the B2O3 to P2O5 mass ratio is 1, the whiteness of the glaze can be improved （The whiteness reached 87） with the increase of the high dispersion phase particles and droplets, which size is close to the wavelength of the visible light. The whiteness is also increased by phase separations in the glass phase and the transition of microphased function since the refraction and the scattering of the glaze have been improved.

关 键 词：分相乳浊釉 复相乳浊 微相功能转换 乳浊机理 

分 类 号：TB321[一般工业技术—材料科学与工程]