高钙粉煤灰应用于玻璃陶瓷材料探索研究

本文选用了两种高钙粉煤灰,在无任何添加剂条件下,研究其直接应用于玻璃陶瓷材料的可能性。运用差热分析(DTA)、X射线衍射(XRD)、扫描电镜(SEM)等分析方法对基础玻璃以及热处理样品进行了分析研究。DTA结果表明,基础玻璃的升温过程有明显的晶化放热峰,XRD结果表明经热处理后两种基础玻璃均得到以钙长石为主要晶相的玻璃陶瓷材料,SEM图中可以看到明显且均匀的钙长石晶体,因此由高钙粉煤灰直接制备玻璃陶瓷材料是可行的。

Characterization of high-calcium fly ash for possible utilization in glass ceramics

Two kinds of high-calcium fly ash were used to study the possibility of directly application in the glass-ceramic materials without any additives in this paper. The base glass and heat-treated samples were analyzed by Differential Thermal Analysis (DTA), X-ray Diffractometer(XRD), Scanning Electron Microscope (SEM) and other analytical methods. DTA results showed that there were apparent exothermic peaks in the DTA curves of base glasses. XRD results showed that the glass-ceramics with anorthite as main crystalline phase were obtained in the heat-treated samples. SEM images showed clear and uniform anorthite crystals. So it can be conclude that it is feasible to prepare of glass-ceramic material from high calcium fly ash directly.