复合尾矿微晶玻璃的组成设计与显微结构分析  

Design for Composition of Multi-tailings Slag Glass Ceramics and Analysis of Microstructure

作　　者：江勤[1] 陆雷[1] 董巍[1] 赵莹[1] 张乐军[1] 

机构地区：[1]南京工业大学材料科学与工程学院,江苏南京210009

出　　处：《矿产综合利用》2006年第5期31-34,共4页Multipurpose Utilization of Mineral Resources

摘　　要：以CAS系统相图为配料依据,以钢渣、粉煤灰、铜尾矿及砂岩为主要原料采用熔融法制备微晶玻璃。通过基础玻璃的DTA曲线确定最佳基础玻璃配料组成。借助于XRD、SEM及EDS确定了微晶玻璃的显微结构,结果表明:其主晶相为透辉石,晶粒形貌为颗粒状,晶粒尺寸约0.5μm,主要元素为S i、Fe、A l、Ca以及0。并探讨了基础玻璃的组成、晶核剂的选择等问题,对其主要性能进行了测试。The method of manufacturing glass-ceramics with steel slag, fly-ash, copper tailings and sandstones as major materials was described. Recipe composition was studied by phase diagram of CAS system and DTA curve. Crystalline phase identification were done by XRD, SEM and EDS. The results showed that the main crystalline phase is diopside. The shape of the diopside is like the granule. The sizes of the crystals are about 0.5μm. The composition of crystal is composed of Si, Fe, Al, Ca and 0. This article researched the composition of basic glass and the choice of crystal nuclei, meanwhile, the major performance indexes are determined and tested.

关 键 词：透辉石 微晶玻璃 差热分析 钢渣 粉煤灰 铜尾矿 

分 类 号：TQ171.1[化学工程—玻璃工业]