烧结法制备Al_2O_3-CaO-SiO_2-MgO系复合材料  

PREPARATION OF THE Al_2O_3-CaO-SiO_2-MgO SYSTEM COMPOSITE BY SINTERING METHOD

作　　者：尹雪亮[1] 杜成武[1] 李丽颖[1] 王全洲 武艺[1] 田东旭[1] 

机构地区：[1]辽宁科技学院,辽宁本溪117000 [2]本钢集团炼钢厂,辽宁本溪117000

出　　处：《矿冶》2016年第5期46-48,共3页Mining And Metallurgy

基　　金：辽宁省教育厅科学研究一般项目(L2015275(1506181));辽宁省科学事业公益研究基金资助项目(GY2014-C-016);辽宁科技学院青年和引导基金项目(Qn2016);国家级大学生创新创业训练计划项目(201311430013)

摘　　要：研究了利用本钢南芬铁尾矿粉通过反应烧结法制备Al_2O_3-CaO-SiO_2-MgO系复合材料的工艺方案。结果表明,通过合理的成分调整后控制熔制温度1500℃保温1h后的水淬液态试样,磨细后制得的粉末压制成型后放入高温电炉中升温至750℃核化1h后在860℃条件下晶化1h可制备出相主体组成为透辉石和硅灰石、性能优良的Al_2O_3-CaO-SiO_2-MgO系微晶玻璃复合材料产品。In this paper, the preparation process of the Al2O3-CaO-SiO2-MgO system composite from Nanfen i- ron tailings powder of Benxi Iron and Steel Company by sintering method was investigated. The results showed that the reasonable preparation conditions are that the samples were heated at 1500 ℃ for lh after the components of i- ron railings were reasonably adjusted, then the molten samples were water-quenched to obtain glass particles, and the homogeneous mixture powders were iso-statically pressed to plate compacts after the glass particles were ground, and these prepared samples were heated at the nucleation temperature of 750 ℃ for 1 h and at the crystallizing tem- perature of 860 ℃ for lh in a high temperature electric furnace. As a result, the main phase compositions of Al2O3- CaO-SiO2-MgO system glass-ceramic composite that contains CaMg（ SiO3 ）2, CaSiO3 was obtained, the properties of composite being excellent.

关 键 词：铁尾矿 微晶玻璃 复合材料 工艺流程 

分 类 号：TD981[矿业工程—选矿]