Abstract
The present work is on the investigation of dielectric and ferroelectric properties of Ba(0.70-x) SmxCa0.30TiO3; BSCT (x = 0.000, 0.005, 0.010, 0.015, 0.020 and 0.030) ceramics. The samples were prepared by the conventional solid-state reaction route method. The perovskite tetragonal structure was confirmed by X-ray diffraction analysis. The dielectric constant ‘ε’ and tangent loss ‘tanδ’ was measured over a temperature range (30 °C–150 °C) and frequency (100 Hz–100 kHz). All the samples show very small value of tanδ (<3 %) at 30 °C. The Curie temperature ‘Tc’ was found to decreases with increase the Sm-content. PE hysteresis loops were recorded at the different electric fields at 30 °C. The maximum value of electric field induced strain was observed for the sample with x = 0.015. The results show that the prepared samples are suitable for potential actuator and capacitor applications.
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