摘要
采用固相反应法制备了(Ba_(1-x)Pr)x)Ti_(1-x/4)O_3(x=0.10～0.20)(BPT)的陶瓷.由X射线衍射(XRD)和电子顺磁共振(EPR)技术研究了BPT陶瓷的固溶度及Pr离子的位占据情况.结果表明:BPT陶瓷的固溶度为x=0.17,且在固溶限制范围内BPT具有单相立方钙钛矿结构; Pr离子支配性地占据Ba位.
The solid-state reaction method was used to prepare(Ba1-xPrx)Ti1-x/4O3(x=0.10~0.20)(BPT)ceramics.The solid solubility and site occupations of Pr ions in BPT were investigated using X-ray diffraction(XRD)and electron paramagnetic resonance(EPR)techniques.The results indicate that the solubility limit is x=0.17,within which BPT ceramics exhibit a single-phase cubic perovskite structure.Pr ions are substituted predominantly for Ba-sites.
作者
季虑
路大勇
JI Lv;LU Dayong(Research Center for Materials Science and Engineering,Jilin Institute of Chemical Technology,Jilin City 132022,china)
出处
《吉林化工学院学报》
CAS
2019年第3期78-81,共4页
Journal of Jilin Institute of Chemical Technology
基金
国家自然科学基金面上项目(21271825)
关键词
镨掺杂钛酸钡
X射线衍射
电子顺磁共振
固溶度
位占据
pr-doped BaTiO3
X-ray diffraction
electron paramagnetic resonance
solid solubility
site occupations
