Properties of Al_2O_3-Sm_2O_3-CeO_2 electrolyte

作     者：S.RAMESH K.C.J.RAJU C.V.REDDY 

作者机构：School of PhysicsUniversity of HyderabadHyderabad 500046India Department of PhysicsOsmania UniversityHyderabad 500007India 

出 版 物：《Transactions of Nonferrous Metals Society of China》 (中国有色金属学报（英文版）)

年 卷 期：2012年第22卷第6期

页      面：1486-1494页

核心收录：

学科分类：081704[工学-应用化学] 07[理学] 08[工学] 0817[工学-化学工程与技术] 0703[理学-化学] 070301[理学-无机化学] 

基　　金：UGC-DSKPDF for funding 

主　　题：sol-gel process XRD-rietveld impedance spectroscopy ionic conductivity electrolyte ceramics 

摘      要：Cel-xSmxO2 （x=0, 0.1, 0.2 and 0.3） and Sm-doped ceria＋（2%-8%）Al2O3 were synthesized through sol-gel process followed by low temperature combustion. The synthesis, structure, densification, conductivity and thermal expansion were studied, and the structure and phase were confirmed by XRD. Dense ceramics were obtained through sintering the pellets at 1300 ℃. 2% and 4% Al2O3 were added into Ce0.8Sm0.2O2 to promote the densification at 1250 ℃. The surface morphology of the sintered pellets was analyzed using SEM. A two-probe AC impedance spectroscopy was used to study the total ionic conductivity.