Synthesis, Electrical and Dielectric Properties of Ca-doped SrTiO3 Ceramics
Ali Mater （ Faculté des Sciences de Bizerte, LR01ES15 Laboratoire de Physique des Matériaux: Structure et Propriétés, Université de Carthage, 7021 Zarzouna, Bizerte, Tunisia ）
Massoud Kahlaoui （ Unité des services communs spectromètre de surface, Faculté des Sciences de Bizerte, Université de Carthage, Zarzouna 7021, Tunisia. ）
Abdewaheb Inoubli （ Unité des services communs spectromètre de surface, Faculté des Sciences de Bizerte, Université de Carthage, Zarzouna 7021, Tunisia. ）
Chaabane Chefi （ Faculté des Sciences de Bizerte, LR01ES15 Laboratoire de Physique des Matériaux: Structure et Propriétés, Université de Carthage, 7021 Zarzouna, Bizerte, Tunisia ）
https://doi.org/10.37155/2717-526X-0301-1Abstract
CaxSr1-xTiO3 (CxST; x=0.2 and 0.4) powders were elaborated by conventional solid state reaction. Structural and electrical properties were influenced by the Ca2+ doping content. Structural and microstructures properties of the obtained powders were conducted by X-ray diffraction and scanning electron microscopy. The powder were pressed to eight tons into cylindrical pellets and sintered at 1300°C for 3h. The electrical and dielectric properties were measured by two-probe method using HP 4192 Analyzer. The refinement of results showed that the samples were crystallized in the tetragonal with I4/mcm space group. The highest conductivity was shown for C0.2ST sample which equal to 1.21 x 10-4 S.cm-1 at 600 °C. The electrical and dielectric parameters were plotted and discussed as a function of temperature and frequency. These Ca doped perovskite ceramics materials can be used as possible candidate for a wide range of applications in various devices.
Keywords
Ca-doped SrTiO3; Solid state reaction; Perovskite; Conductivity; PermittivityFull Text
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Copyright © 2021 Ali Mater, Massoud Kahlaoui, Abdewaheb Inoubli, Chaabane Chefi
Publishing time:2021-06-30
This work is licensed under a Creative Commons Attribution 4.0 International License
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