Abstract
BNKTN-BST ceramics (1−x)[Bi0.5(Na0.4K0.1)(Ti1−xNbx)]O−x(Ba0.7Sr0.3)TiO3, (x = 0.00, 0.025, 0.050, 0.075) were synthesized by conventional solid-state reaction method. The prepared compounds were characterized by X-ray diffraction (XRD), Energy-dispersive X-ray spectroscopy (EDX), ferroelectric, piezoelectric, and energy storage behavior. Powder-XRD characterization revealed a perovskite phase of all the prepared compounds and EDX analysis confirmed the presence of all the elements in the composition. The P-E hysteresis loops of the BNKTN-BST ceramics were measured under an electric field of 10–60 kV/cm at room temperature. BNKTN-BST at (x = 0.075) ceramics show higher piezoelectric constant d33 and energy storage efficiency of 127 pC/N and 68.2% respectively. Therefore, BNKTN-BST ceramic is a promising candidate which can be used in the energy storage capacitor and piezoelectric sensor applications.
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