(Ba1-x Prx )Ti1-x/4 O3 陶瓷固溶度及位占据的研究
季虑,路大勇
吉林化工学院 材料科学与工程研究中心
Study on Solid Solubility and Site Occupations in (Ba1-x Prx )Ti1-x/4 O3 Ceramics
JI Lv, LU Dayong
摘要
采用固相反应法制备了(Ba1-x Prx )Ti1-x/4 O3 (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。
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
Abstract:
The solid-state reaction method was used to prepare (Ba1-x Prx )Ti1-x/4 O3 (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.
Key words:
pr-doped BaTiO3
X-ray diffraction
electron paramagnetic resonance
solid solubility
site occupations
出版日期: 2019-03-25
发布日期: 2019-03-25
整期出版日期: 2019-03-25
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