Temperature and E-Poling Evolution of Structural, Vibrational, Dielectric, and Ferroelectric Properties of Ba_1-xSr_xTiO₃ Ceramics (x = 0, 0.1, 0.2, 0.3, 0.4 and 0.45).

ABSTRACT: Lead-free Ba_1-xSr_xTiO₃ (BST) (x = 0, 0.1, 0.2, 0.3, 0.4 and 0.45) ceramics were successfully prepared via the solid-state reaction route. A pure perovskite crystalline structure was identified for all compositions by X-ray diffraction analysis. The basic phase transition temperatures in these ceramics were studied over a wide temperature range. A change in symmetry from a tetragonal to cubic phase was detected, which was further proven by phonon anomalies in composition/temperature-dependent Raman spectra. The incorporation of Sr²⁺ into BaTiO₃ (BT) lead to a shift in the phase transitions to lower temperatures, suppressing the ferroelectric properties and inducing relaxor-like behavior. Therefore, it was reasonable to suppose that the

SUBMITTER: Suchanicz J 

PROVIDER: S-EPMC10532674 | biostudies-literature | 2023 Sep

REPOSITORIES: biostudies-literature