铁铝尖晶石的制备  

Preparation of Hercynite

作　　者：张君博[1] 张刚[1] 肖国庆[1] 

机构地区：[1]西安建筑科技大学材料科学与工程学院,西安710055

出　　处：《硅酸盐通报》2007年第5期1003-1006,共4页Bulletin of the Chinese Ceramic Society

基　　金：陕西省教育厅产业化项目(07JC07);西安建筑科技大学基础研究基金资助项目(JC0701)

摘　　要：以铁鳞、Fe2O3粉及Al2O3粉为原料,分别采用烧结法、电熔法,进行铁铝尖晶石的合成。利用X射线衍射(XRD)检测了合成试样的物相组成,采用扫描电子显微镜(SEM)观察和分析了合成试样的物相的形貌和分布。研究结果表明:采用在配料中加入石墨和埋炭的方法均能营造弱还原性气氛,合成出铁铝尖晶石,但是铁铝尖晶石的含量仅为20%左右,采用合适的原料并利用电熔法能够合成铁铝尖晶石,含量在97%以上。In this work, hercynite was synthesized from iron oxide scrap, Fe2O3 powder and Al2O3 powder by sintering process and electrocast process, respectively. The phase constituents of synthesized product were analyzed by X-ray diffraction （XRD）, and the microstructure was observed with scanning electron microscopy （SEM）. The experimental results show that the reducting stmosphere was obtained by adding of graphite in the samples and by embedding carbon method. The hercynite content synthesized by sintering process has only 20% and electrocast method arrives above 97%.

关 键 词：铁铝尖晶石 还原性气氛 水泥回转窑 

分 类 号：TQ175[化学工程—硅酸盐工业]