B_2O_3对R_2O-RO-B_2O_3-SiO_2-Al_2O_3系统快速烧成乳浊釉分相过程的影响  

Effect of B_2O_3 on the Phase-Separation Process of Fast-Fired Opaque Glazes in R_2O-RO-B_2O_3-SiO_2-Al_2O_3 System

作　　者：李伟东[1] 

机构地区：[1]华侨大学材料学院,福建泉州362011

出　　处：《玻璃与搪瓷》2001年第2期48-52,共5页Glass & Enamel

基　　金：国家自然科学基金资助项目!(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：在R2 O -RO -B2 O3-SiO2 -Al2 O3系统中 ,通过设计合理组成 ,可以获得适合快速烧成的分相乳浊釉。本文用TEM/EDX ,DTA ,自动图像分析等手段研究了该系统中B2 O3组份的作用。结果表明 :为获得较高白度及良好釉面性状的低温快烧分相乳浊釉 ,少量B2 O3的添加是必需的。它具有扩大液 -液不混溶组成范围、降低Tb温度及釉烧温度、扩大釉烧温度范围、改善釉熔体的粘度 -温度特性等作用 。Through rational composition design in R 2O-RO-B 2O 3-SiO 2-Al 2O 3 system, phases-separative opaque glazes suited to fast firing can be produced. Effect of B 2O 3 has been investigated by means of TEM/EDS, DTA and automatic image analysis. The study demonstrates that addition of a little amount of B 2O 3 is indispensable to obtain fast fired phase-separative opaque glazes with high whiteness and good surface properties.B 2O 3 enlarges composition range for liquid-liquid immiscibility, lowers Tb and firing temperature, broadens firing temperature range, improves viscosity-temperature characteristics and favors forming appropriately sized phase-separation microstructure.

关 键 词：陶瓷釉 三氧化二硼 分相釉 乳浊釉 快速烧成 

分 类 号：TQ174.614[化学工程—陶瓷工业]