钢渣—赤泥微晶玻璃的制备及性能  

Preparation and Mechanical Properties of Steel Slag and Red Mud Glass-ceramic

作　　者：张全鹏[1] 刘立强[1] 井敏[1] 李航[1] 王明国[1] 牛文贺[1] 王正[1] 邢瑞平[1] 

机构地区：[1]山东建筑大学材料科学与工程学院,山东济南250101

出　　处：《材料科学与工程学报》2013年第6期896-900,共5页Journal of Materials Science and Engineering

摘　　要：本文以钢铁废渣和赤泥工业废弃物为主要原料，在不外加晶核剂和助熔剂的情况下，利用熔融法制备了微晶玻璃，并对所制备的微晶玻璃进行了DTA、XRD和SEM测试分析。结果表明：在固体废弃物总量达到90％时仍能得到析晶良好的微晶玻璃，其主晶相为钙铝黄长石，次晶相为钙铁透辉石，晶粒形状为颗粒和块状，尺寸在0．2～1μm之间。当钢渣掺量为50％0时获得的微晶玻璃性能最优，其抗折强度达到161．57MPa，显微硬度为839．5MPa，并有较好的化学稳定性。A type of glass ceramics was prepared by melting method, using industrial solid wastes of steel slag and red mud as principal raw materials in the absence of nucleating agent and flux. Analysis of DTA, XRD and SEM were performed for the glass ceramic. The results Showed that： well crystallized glass ceramics could still be obtained when the percent of industrial solid wastes was up to 90%, in which the major crystalline phase was gehlenite and the minor one was calcium iron diopside. The grains were particle or bulk, whose size varied from 0.2 to 1 μm. The glass ceramic with optimal performance was acquired when amount of steel slags reached 50%, the flexural strength of which reached＂ 161.57 MPa and the microhardness was 839.5 MPa, and the product also showed a favorable chemical stability.

关 键 词：钢铁废渣 赤泥 微晶玻璃 性能分析 

分 类 号：TU523[建筑科学—建筑技术科学]