铁尾矿制备微晶玻璃的微观组织结构研究  

Research on Microstructure of Glass Ceramics Prepared from Iron Ore Tailings

作　　者：张影[1] 姜茂发[1] 史培阳[1] 张大勇[1] 王媛媛[1] 

机构地区：[1]东北大学材料与冶金学院,辽宁沈阳110004

出　　处：《矿产综合利用》2007年第2期34-37,共4页Multipurpose Utilization of Mineral Resources

基　　金：国家自然科学基金资助项目(50204005)

摘　　要：以铁尾矿、硼泥和粉煤灰为原料制备矿渣微晶玻璃,并利用XRD、SEM和穆斯堡尔谱对微晶玻璃的微观结构进行研究。结果表明:随着铁尾矿配入量的增加,矿渣微晶玻璃的晶体分布形态从非定向分布到定向分布,晶相中紫苏辉石逐渐消失;Fe2+在矿渣微晶玻璃体系中起到促进析晶的作用,而Fe3+主要分布在玻璃中,起到增强玻璃网络连接的作用。The glass ceramics were prepared from iron ore tailings, boron mud and fly ash. The microstructure of the glass ceramics was investigated by XRD, SEM and Mossbauer spectrum. The results show that as increasing iron ore railings, the crystal distributing shape of the glass ceramics changes from non-directional distribution to directional distribution,meanwhile, hypersthene in crystal phase is disappeared progressively;Fe^2＋ can promote crystallization of the glass ceramics, and Fe^3＋ mostly distributed in glass phase, it can enhance the network connections of glass.

关 键 词：微晶玻璃 铁尾矿 微观组织 穆斯堡尔谱 

分 类 号：TQ171[化学工程—玻璃工业]