Influence of La_2O_3 on preparation and performance of porous cordierite from rice husk  

作　　者：郭伟 陆洪彬 冯春霞 

机构地区：[1]Department of Materials Engineering, Yancheng Institute of Technology

出　　处：《Journal of Rare Earths》2010年第4期614-617,共4页稀土学报（英文版）

基　　金：Project supported by the Jiangsu Province Natural Science Foundation (BK2009671);the Natural Science Foundation of Jiangsu Provincial Edu-cation Department (07KJB430123);the Key Laboratory Foundation of Ecological-Environment Materials (Yancheng Institute of Technology) of Jiangsu Province (XKY2009033)

摘　　要：A porous cordierite was synthesized at 1350 ℃ using rice husk as silica source and pore forming agent, and La2O3 as fluxing agent. The crystal phases of the cordierite were analyzed by X-ray diffraction (XRD) and their microstructures were observed by scanning electronic microscopy (SEM). The flexural strength, porosity and thermal expansion coefficient of the porous cordierite samples were inves- tigated in detail. Results showed that when 5 wt.% La2O3 was added, the flexural strength, porosity and thermal...A porous cordierite was synthesized at 1350 ℃ using rice husk as silica source and pore forming agent, and La2O3 as fluxing agent. The crystal phases of the cordierite were analyzed by X-ray diffraction (XRD) and their microstructures were observed by scanning electronic microscopy (SEM). The flexural strength, porosity and thermal expansion coefficient of the porous cordierite samples were inves- tigated in detail. Results showed that when 5 wt.% La2O3 was added, the flexural strength, porosity and thermal...

关 键 词：porous ceramic CORDIERITE rice husk LANTHANA 

分 类 号：TB383.4[一般工业技术—材料科学与工程]