Influence of Lanthanum on the Microstructural and Dielectric Properties of Polycrystalline Ba(Ti0.5Fe0.5)O3

作     者：M.R.Shah A.K.M.Akther Hossain 

作者机构：Department of PhysicsPrimeasia UniversityBananiDhaka-1213Bangladesh Department of PhysicsBangladesh University of Engineering and TechnologyDhaka-1000Bangladesh 

出 版 物：《Chinese Physics Letters》 (中国物理快报（英文版）)

年 卷 期：2012年第29卷第4期

页      面：213-216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] 0704[理学-天文学] 

基　　金：Supported by the CASR of Bangladesh University of Engineering and Technology(BUET).for this research 

主　　题：Ti structure technique 

摘      要：Various polycrystalline Ba1-x Lax (Ti0.5 Fe0.5 )O3 are prepared by using the standard solid state reaction *** shaped samples prepared from each composition are sintered at 1200℃ for 5 h.X-ray diffraction patterns of these compositions confirm the formation of a single phase perovskite *** lattice parameters are decreased but the average grain size increases with the increase of La *** dielectric constant,dielectric loss and ac conductivity are studied as a function of frequency for various compositions,and their behaviors are explained on the basis of the Maxwell-Wagner model A three-times enhancement of the dielectric constant is observed with the increase of La content.