Study on Structure and Dielectric Properties of Ce and Ca Co-doped BaTiO3 Ceramics
作者单位：吉林化工学院材料科学与工程研究中心
会议名称：《TEIM2015第六届无机材料结构、性能及测试表征技术研讨会》
会议日期：2015年
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]
关 键 词：Study on Structure and Dielectric Properties of Ce and Ca Co doped BaTiO3 Ceramics
摘 要：Structure and dielectric properties of 5%Ce and Ca co-doped BaTiO ceramics were *** site occupations and valence states were studied using XRD,Raman spectroscopy,SEM,EPR and dielectric *** Ba/Ti ratio has dramatic effects on ceramic structure and *** single-phase ceramics with Ba/Ti=1 and 0.937 have tetragonal and cubic structure,showing diffuse phase transition and first-order phase transition behaviors,*** former exhibit the site occupations of mixed Ca/Ceat Ba sites and Ca/Ceat Ti *** ions have priority over Caions in entering Ti sites as Cewhen co-doping in BaTiO,which will impede Caions to be incorporated completely into Ti sites.