高岭土尾矿微晶泡沫玻璃的研制
Development of Microcrystalline Foam Glass from Kaolin Tailings
吴元发 1张璞 1徐志芳1
作者信息
- 1. 中国轻工业陶瓷研究所,景德镇 333000
- 折叠
摘要
以高岭土尾矿为主要原料,加入一定比例的废玻璃、硼砂,采用"一步法"制备微晶泡沫玻璃.研究不同含量的SiC对微晶泡沫玻璃性能的影响.采用DSC、SEM、XRD等测试技术对微晶泡沫玻璃的玻璃物相组成、形貌体积变化进行测试分析.制备出的微晶泡沫玻璃以石英和氧化铝为主晶相,体积密度为0.79 g/cm3,抗压强度可达到18.8 MPa.制备出的微晶泡沫玻璃具有体积密度小,抗压强度高,化学稳定性良好等特点,在建筑陶瓷行业有着广泛的应用价值,为高岭土尾矿重新再利用提供新的途径.
Abstract
The microcrystalline foam-glass ceramics were synthesized by the"one-step"method of sintering with Kaolin tailings as the main raw material,adding a certain proportion of waste glasses and boraxes.The study investigated the effect of different SiC contents on the properties of microcrystalline foam-glass.The glass phase composition,morphology,and volume changes of the microcrystalline foam-glass ceramics were analyzed by testing techniques such as DSC,SEM and XRD.The prepared microcrystalline foam glass is composed of quartz and alumina as the main crystalline phases,with a bulk density of 0.79 g/cm3 and a compressive strength of up to 18.8 MPa.The preparation of microcrystalline foam-glass ceramics had the characteristics of low bulk density,high compressive strength,and good chemical stability.It has wide application value in the architectural ceramics industry,providing a new approach for the reutilization of kaolin tailings.
关键词
高岭土尾矿/SiC/粉末烧结法/微晶泡沫玻璃Key words
Kaolin tailings/SiC/Powder sintering/Microcrystalline foam-glass ceramics引用本文复制引用
出版年
2024
NETL
NSTL
万方数据