摘要
废瓷和牡蛎壳是我国沿海地区主要的固体废弃污染物,如何实现二者的高价值利用是急需解决的问题。本研究分析不同种类废瓷和牡蛎壳的成分特点,在单一日用废瓷基础上,探究加入多元废瓷和还原气氛对釉的熔融特性、光学性能和硬度的影响,并利用XRD、SEM、EDS和热分析技术分析釉的物相、形貌和高温行为。结果表明,镁质废瓷中的原顽辉石起到助熔剂作用,有利于降低釉的熔融温度,釉的球形温度、半球形温度和流动温度分别由1 248、1 255和1 268℃降低至1 213、1 222和1 231℃。骨质废瓷引入的P_(2)O_(5)在硅酸盐网络中起“补网”作用,拓宽了成釉温度范围。另外,还原剂的加入导致更多蓝色Fe^(2+)的形成,使釉面颜色由黄色向蓝绿色变化。同时,Fe^(2+)作为玻璃网络修饰体降低了釉熔体的黏度,促进了釉的扩散传质和钙长石的析晶,致使釉面的光泽度降低和硬度提高。
Porcelain waste and oyster shell are major solid waste pollutants in Chinas coastal areas.How to achieve high-value utilization of porcelain waste and oyster shell is an urgent problem to be solved.In this study,the compositional characteristics of different types of porcelain waste and oyster shell were analyzed.Then based on single-component daily-used porcelain waste,the effects of the addition of multi-component porcelain waste and reducing atmosphere on the melting characteristics,optical properties,and hardness of glaze were explored.The phase,morphology,and high-temperature behavior of glaze were analyzed by XRD,SEM,EDS,and thermal analysis techniques.The results show that primary enstatite in magnesia porcelain waste acts as a flux,which is beneficial to reduce the melting temperature of glaze.The sphere temperature,hemisphere temperature,and flow temperature of glazes decrease from 1248,1255 and 1268℃to 1213,1222 and 1231℃,respectively.Bone china porcelain waste introduces P2O5,which exerts a“network-mending”effect within the silicate network,and broadens the temperature range for glaze formation.Moreover,the addition of reducing agent leads to the formation of blue Fe2+,so that the glaze color changes from yellow to blue-green.At the same time,as a glass network modifier,Fe2+reduces the viscosity of the glaze melt,promotes the diffusion mass transfer of glaze and the crystallization of anorthite,resulting in a decrease in the gloss and an increase in the hardness of glaze surface.
作者
蓝琳
邱柏欣
吴怡恩
林少敏
LAN Lin;QIU Boxin;WU Yien;LIN Shaomin(School of Material Science and Engineering,Hanshan Normal University,Chaozhou 515633,China)
出处
《硅酸盐通报》
北大核心
2025年第8期3014-3021,共8页
Bulletin of the Chinese Ceramic Society
基金
广东省普通高校重点实验室(2023KSYS007)
韩山师范学院科研平台“陶瓷文化传承与创新应用研究中心”(PSB230604)
韩山师范学院博士启动基金项目(B23108)
广东省科技计划项目(2017B090921002)
潮州市科技计划项目(2018SS24)
大学生创新创业训练计划项目(2024011)。
关键词
废瓷
牡蛎壳
钙长石
青釉
还原气氛
黏度
porcelain waste
oyster shell
anorthite
celadon glaze
reducing atmosphere
viscosity
作者简介
蓝琳(2004-),女。主要从事传统陶瓷方面的研究。E-mail:940826255@qq.com;通信作者:邱柏欣,博士,讲师。E-mail:bx_qiu@163.com。
