Preparation and Structure Characterization of Rare Earth Doped Alumina-Siloxane Gel and Its Modification on ER Effect  

作　　者：邱关明 张明 李幼荣 陆磊 陈海燕 Hiroshi Okamoto 

机构地区：[1]Department of Chemistry and Chemical Engineering, Institute of Science, Yangzhou University, Yangzhou 225009, China [2]Department of Materials and Chemical Engineering, Changchun College of Optics & Fine Mechanics, Changchun 130022, China [3]Physics Research Institute Jiangxi Academy of Sciences, Nanchang 330029,China

出　　处：《Journal of Rare Earths》2004年第2期249-253,共5页稀土学报（英文版）

基　　金：ProjectsupportedbytheNationalNaturalScienceFoundationofChina ( 5 0 3 73 0 3 4) ;ScienceFoundationofEducationDepart mentofJiangsuProvince (S0 2 0 90 5 8;0 3KJB43 0 166)

摘　　要：A series of samples of alumina-siloxane gel wrapped by poly (methyl methacrylate) and doped with rare earths such as lanthanum, praseodymium, yttrium, gadolinium and europium were prepared. The structure features were characterized by micrograph, X-ray fluorescence spectrum, X-ray diffraction spectrum, Fourier transform infrared spectrum and differential thermal analysis. Tests indicate that rare earths modify the electrorheological effects of the stable suspensions composed of samples stirred with silicon oil.A series of samples of alumina-siloxane gel wrapped by poly (methyl methacrylate) and doped with rare earths such as lanthanum, praseodymium, yttrium, gadolinium and europium were prepared. The structure features were characterized by micrograph, X-ray fluorescence spectrum, X-ray diffraction spectrum, Fourier transform infrared spectrum and differential thermal analysis. Tests indicate that rare earths modify the electrorheological effects of the stable suspensions composed of samples stirred with silicon oil.

关 键 词：organic macromolecular material alumina-siloxane gel ER effect VISCOSITY rare earths 

分 类 号：O614.33[理学—无机化学]