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Influence of Strontium on the Structural and Dielectric Properties of Hydrothermally Processed PbTiO3 Ceramic
Corresponding Author(s) : E.H. Lahrar
Asian Journal of Chemistry,
Vol. 32 No. 3 (2020): Vol 32 Issue 3
Abstract
Perovskite ceramic materials of the composition Pb1-xSrxTiO3 (PSxT) were prepared by hydrothermal process at a relatively low temperature. The solution of KOH favours the solubility of the precursors in solid state. Pressure and temperature are critical factors for the formation of pure perovskite PSxT phase. The reaction mixture in stoichiometric amount is put in an autoclave and treated at 180 ºC for 24 h. The powder obtained after grinding is treated at 400 ºC for 4 h. X-ray diffraction shows that the compounds crystallize in a pure phase of perovskite type. SEM morphology indicates a homogeneous microstructure of the grains with the presence of pores. The impedance spectroscopy study in the frequency range (1 KHz − 2 MHz) confirms the insertion of stronium into the lead titanate matrix and highlights the strontium effect on the transition temperature (Tc) and the value of dielectric permittivity (εr).
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- Z. Mohammed, Ph.D. Thesis, Propriétés Physico-Chimiques Des Pérovskites Diélectriques PFN et PLT élaborés par voie hydrothermale, Faculty of Sciences and Technology, Sidi Mohamed Ben Abdellah University, p. 136 (2013).
References
W.D. Maison, R. Kleeberg, R.B. Heimann and S. Phanichphant, J. Eur. Ceram. Soc., 23, 127 (2003); https://doi.org/10.1016/S0955-2219(02)00071-7
J.S. Obhi and A. Patel, J. Integr. Ferroelectric., 5, 155 (1994); https://doi.org/10.1080/10584589408017008
J.F. Scott, D. Galt, J.C. Price, J.A. Beall, R.H. Ono, C.A. Paz de Araujo and L.D. Mc Millan, J. Integr. Ferroelectric., 6, 189 (1995); https://doi.org/10.1080/10584589508019364
M.A. Mohiddon, P. Goel, K.L. Yadav, M. Kumar and P.K. Yadav, Indian J. Eng. Mater. Sci., 14, 64 (2007).
M. Zouhairi, H. Bali, O. El Ghadraoui, T. Lamcharfi and A. Elbasset, Int. J. Curr. Res., 7, 22474 (2015).
M. Zouhairi, O. Elghadraoui, H. Bali, T. Lamcharfi, F. Abdi and L. Mrharrab, J. Phys. Chem. News, 72, 42 (2014).
A. Elbasset, F. Abdi, T. Lamcharfi, S. Sayouri and M. Aillerie, Int. Rev. Phys., 7, 1971 (2013).
P.P. Neves, A.C. Doriguetto, V.R. Mastelaro, L.P. Lopes, Y.P. Mascarenhas, A. Michalowicz and J.A. Eiras, J. Phys. Chem. B, 108, 14840 (2004); https://doi.org/10.1021/jp037166h
Y. Hu, H. Gu, W. Chen and Y. Wang, Mater. Chem. Phys., 121, 10 (2010); https://doi.org/10.1016/j.matchemphys.2010.02.008
F. Jona and G. Shirane, Single-Crystal Ferroelectrics: Fundamental Physical and Electronic Properties Ferroelectric Crystal, Dover Publication: New York (1993).
P. Goel, K.L. Yadav and A.R. James, J. Phys. D Appl. Phys., 37, 3174 (2004); https://doi.org/10.1088/0022-3727/37/22/019
P. Goel and K.L. Yadav, J. Mater. Sci., 42, 3928 (2007); https://doi.org/10.1007/s10853-006-0416-x
M.A. Mohiddon and K.L. Yadav, J. Sol-Gel Sci. Technol., 49, 88 (2009); https://doi.org/10.1007/s10971-008-1840-y
R.A. Laudise, J. Chem. Eng. News, 96, 125 (1987).
A. El Ghandouria, S. Sayouria, T. Lamcharfib and L. Hajji, J. Ceram. Process. Res., 19, 154 (2018).
Z. Mohammed, Ph.D. Thesis, Propriétés Physico-Chimiques Des Pérovskites Diélectriques PFN et PLT élaborés par voie hydrothermale, Faculty of Sciences and Technology, Sidi Mohamed Ben Abdellah University, p. 136 (2013).