Depositing of Amorphous Ferri-oxide Nanoparticles on Surfaces of Submicron Aluminum Powder

摘要：

　　Nanoparticles with about 20nm diameter were densely coated on the surface of submicron A1 via a sol-gel processing in ethanol, wherein 1,2-epoxypropane acted as a weak base to consume proton in solution.After the medium gelled, uniform network formed and aluminum particles imbedded in it.The core-shell structure and the nanoparticles were observed in SEM analysis.The EDS spectrum and the XRD pattern revealed that the cores consisted of amorphous ferri-oxide of which the mass ratio is closed to that of crystal Fe2O3.Thermal analysis was performed and the results indicated that the DSC peak point of ferri-oxide/A1 nanocomposite showed 53 ℃ lower than that of ferri-oxide+Al simple mixture.

关键词： Nanocomposite Sol-gel Ferric oxide Aluminum powder Thermite reaction

作者: Yi Wang Wei Jiang Xiao Lan Song Guo Dong Deng Feng Sheng Li

作者单位: National Special Superfine Powder Engineering Research Center,Nanjing University of Science and Tech National Special Superfine Powder Engineering Research Center,Nanjing University of Science and Tech School of Chemical Engineering and Environment,North University of China,Taiyuan 030051,China

会议类型: 国际会议

会议名称: 2012 China Functional Materials Technology and Industry Forum(2012中国功能材料科技与产业高层论坛)(CFMTIF2012)

会议地点: 昆明

会议语种:英文

页码: 451-455

在线出版日期: 2012-11-09（万方平台首次上网日期，不代表论文的发表时间）