硅酸盐通报2016，Vol.35Issue(9)：2898-2903,6.
高铝粉煤灰提铝硅钙渣制备硅灰石微晶玻璃研究
Preparation of Wollastonite Glass-ceramics by Using Silicate-calcium Slag Generated in Process of Extracting Alumina from High-alumina Fly Ash
摘要
Abstract
The silicate-calcium slag generated in process of extracting alumina from high-alumina fly ash was used as the main raw material to prepared wollastonite glass-ceramics by sintering method .The effect of amount of silicate-calcium slag additions and heat treatment conditions on crystallization process , microstructures and properties of the prepared glass-ceramics were studied by differential thermal analysis (DTA), X-ray diffraction (XRD) and scanning electron microscopy (SEM) methods.The results indicate that prolong nucleation time and crystallization time could help to wollastonite crystal orientation grown up and closely arranged , and have a significant influence on mechanical properties of glass-ceramics, while the crystallization temperature and nucleation temperature have relatively small influence .With the amount of silicate-calcium slag increasing , wollastonite precipitation from matrix glass is enhancing and signal crystal phase of wollastonite glass-ceramics were prepared under the conditions of add 70 .98%silicate-calcium slag in raw material on the conditions of heat treating at 800 ℃for 90 min followed by crystallization at 920 ℃for 90 min.关键词
硅钙渣/硅灰石/微晶玻璃/粉煤灰Key words
silicate-calcium slag/wollastonite/glass-ceramics/fly ash分类
化学化工引用本文复制引用
陈建,马鸿文,蒋周青,张盼..高铝粉煤灰提铝硅钙渣制备硅灰石微晶玻璃研究[J].硅酸盐通报,2016,35(9):2898-2903,6.基金项目
中央高校基本科研业务费 （）
