Abstract
Barium strontium titanate, BaxSr1-xTio3(BST) exhibits paraelectric or ferroelectric properties depending upon the specific composition and temperature. Nowadays various methods are presented for synthesis of BST nano-powders with different morphology and properties that makes it suitable for special applications. We have prepared BaxSr1-xTio3 (BST) using solid state reaction method with different Sr/Ba ratio of Barium carbonate (BaCO3), strontium carbonate (SrCO3), and titanium dioxide (TiO2) (x = 0.5 and 0.4). The perovskite structure has been confirmed via X-Ray Diffraction (XRD). The results showed that BST (0.5) and BST (0.4) had peaks at around 322∘,462∘ and 574∘. The crystalline size was found to be 11 to 22 nm using Scherrer’s formula. SEM results for cubic and spherical particles were obtained for both samples. Electrical properties measurements using LCR meter show that for the both BST materials and for increasing Sr content as the temperature and frequency increases capacitance decreases
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