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Vol. 31 No. 1 (2019): Vol 31 Issue 1

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Preparation and Characterization of Ba1-xSrxTiO3 by Sol-Gel Method

https://doi.org/10.14233/ajchem.2019.21660
Hamed Alwan Gatea
Department of Physics, Science College, University of Baghdad, Baghdad, Iraq
Iqbal S. Naji
Department of Physics, Science College, University of Baghdad, Baghdad, Iraq

Corresponding Author(s) : Hamed Alwan Gatea

hamedalwan14@gmail.com

Asian Journal of Chemistry, Vol. 31 No. 1 (2019): Vol 31 Issue 1

Abstract

Barium strontium titanate (BST) with formula (Ba1-xSrxTiO3) has been synthesized by sol-gel method with different stoichiometric compositions (x = 0.3, 0.4, 0.5, 0.6). The raw materials which used to prepare compounds are (Ba,Sr) acetate as a source (Ba,Sr) and titanate isopropoxide source. The FE-SEM images showed that the particles size reduced from 464 to 13 nm when strontium concentration increased from 0.3 to 0.6. The X-ray diffraction studies have confirmed that Ba0.7Sr0.3TiO3 sample have the tetragonal phase while remaining samples have a cubic phase. The intensity of the major peaks were decreased and shifted toward higher 2θ angles when Sr2+ ions increases.

Keywords

Ferroelectric materials Barium strontium titanate Curie Temperature Perovskite structure
Gatea, H. A., & Naji, I. S. (2018). Preparation and Characterization of Ba1-xSrxTiO3 by Sol-Gel Method. Asian Journal of Chemistry, 31(1), 186–190. https://doi.org/10.14233/ajchem.2019.21660
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