Effect of transition metal oxides doping on Ce_(0.9)Sm_(0.05)Nd_(0.05)O_(1.95) solid electrolyte materials

作     者：Ming ZHOU Lin GE Han CHEN Lucun GUO 

作者机构：College of Materials Science and EngineeringNanjing University of TechnologyNo.5 Xinmofan RoadNanjing210009China 

出 版 物：《Journal of Advanced Ceramics》 (先进陶瓷（英文）)

年 卷 期：2012年第1卷第2期

页      面：150-156页

核心收录：

学科分类：08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 

基　　金：Jiangsu Provincial Key Laboratory of Inorganic and Composite Materials 

主　　题：transition metal oxides microstructure thermal expansion ionic conductivity 

摘      要：The effect of transition metal oxides(TMOs)Co_(O1.5),Fe_(O1.5)and MnO_(2)addition on Ce_(0.9)Sm_(0.05)Nd_(0.05)O_(1.95)was *** crystal structures,microstructures,thermal expansion and electrical properties were characterized by X-ray diffraction(XRD),scanning electron microscopy(SEM),dilatometer and AC impedance spectroscopy,*** results show that the TMOs addition remarkably promotes the densification of Ce_(0.9)Sm_(0.05)Nd_(0.05)O_(1.95)and reduces the sintering temperature by~150℃.The samples with TMOs addition sintered at 1450℃exhibit higher conductivities than those sintered at 1500℃.The maximum conductivity of 0.040 ***^(-1)at 700℃was achieved with 1 mol%FeO1.5 doping when sintered at 1450℃.In addition,the thermal expansion was linear for all the *** doping of TMOs does not appreciably change thermal expansion coefficient.