两步法由高炉瓦斯泥制备纳米级零价铁  

Preparation of Nanometer Fe from Blast Furnace Wet Dust by Two-step Method

作　　者：许莹[1] 王伟 王娟[1] 

机构地区：[1]河北理工大学材料学院河北省无机非金属材料重点实验室,河北唐山063009 [2]河北职业技术学校,河北唐山063009

出　　处：《材料工程》2009年第8期49-52,共4页Journal of Materials Engineering

基　　金：河北省自然科学基金资助项目(E2007000582)

摘　　要：以高炉瓦斯泥为原料,经两步法制备出纳米铁颗粒。研究物质微观结构的变化规律及微观结构与性能表征之间的关系。用X射线衍射(XRD)、扫描电子显微境(SEM)、光电子能谱(XPS)和振动样品磁强计(VSM)对制得的产物进行结构及性能表征。结果表明:产物为纳米级α-Fe颗粒,平均粒径为74nm,外层有Ni的氧化物包覆,其饱和磁化强度Ms=60.85A.m2.kg-1,剩余磁化强度Mr=12.226A.m2.kg-1,矫顽力Hc=21.41kA.m-1。Blast furnace wet dust was taken as raw material,and nanometer Fe was prepared by two-step method. The variation regularity of the matter was to be focused on, so was the relationship between microcosmic structure and performance characterization. The final product was inspected by X radial diffract, scan electron microscope, X radial photoelectron spectrum and vibrancy sample magnetism. The results show that the powder is nanometer α-Fe, its average size is 74nm. There is oxide of Ni enwrapped on the surface of Fe particles. The saturation magnetization intensity Ms of nanometer Fe is 60.85 A·m^2·kg^-1 , and the remaining magnetization intensity Mr is 12. 226A·m^2·kg^-1, while the coercive force Hc is 21.41kA·m^-1.

关 键 词：两步法 高炉瓦斯泥 纳米级零价铁 

分 类 号：TB383[一般工业技术—材料科学与工程]