机械研磨锰渣的物理与机械力化学现象研究  

Study on Physical Properties and Mechanical-chemistry of Mechanically Ground Manganese Slag

作　　者：郜志海[1] 宋旭艳[1] 韩静云[1] 

机构地区：[1]苏州科技学院土木工程学院,苏州215011

出　　处：《材料导报》2010年第8期69-72,共4页Materials Reports

基　　金：国家"十一五"科技支撑计划合作项目(Z1201);苏州市建设局科研基金资助项目(Z938)

摘　　要：以锰渣为主要研究对象,对其机械研磨过程中的物理与机械力化学现象进行了研究。通过密度测定、比表面积测定和颗粒群特征分析对活化锰渣的物理性能进行了表征,采用X射线衍射分析(X-ray diffraction,XRD)和扫描电镜分析(Scanning electron microscopy,SEM)等现代测试方法对锰渣机械力活化过程的结构特征进行了分析,结果表明,锰渣经过高能机械研磨后其密度增大,比表面积增大,粒径趋于向粒径小的方向分布;随着机械研磨时间的延长,大颗粒减少,小颗粒增多,晶体结构发生了变化,SiO2由晶形向无定形的转变量增加。制备了锰渣-水泥复合体系,并测定了其力学强度,结果表明,随着锰渣细度的增大,体系强度不断增大。Manganese slag is mainly studied. It is studied that physical properties and mechanical-chemistry of manganese slag in mechanical grinding. Physical properties of activated manganese slag are charactized by a series of analysis such as density testing, surface area testing, particle size distribution testing. Structure characteristic in the activatory process can be analyzed by modem testing methods such as X-ray diffraction, scanning electron microscopy etc. The experiment shows that after high-energy grinding, density and surface area of manganese slag increases, and particle distribution is in the trend of small size distribution. With the increase of grinding time, the crystal structure can be changed, and SiO2 from the crystal shape to the amorphous can be increased. Finally, the cement with manganese slag is prepared and mechanical strength of composited-systemic is tested. The results of the samples show that with fineness of manganese slag increasing, cement mechanical strength increases in the composite system with manganese Slag.

关 键 词：锰渣 机械力化学 颗粒群特征 力学强度 

分 类 号：TF642.31[冶金工程—钢铁冶金]