Abstract
ABSTRACT[Ba(Nd0.1Ti0.8Nb0.1)O3](1-y)[Na0.5Bi0.5TiO3]y ceramics were prepared through solid state sintering (CS) and microwave sintering (MWS) route. The XRD results indicate that the ceramic samples have a cubic structure at room temperature. The dielectric, electromechanical and piezoelectric properties were also investigated. Relaxor behaviour was observed for the present ceramic samples prepared through both the sintering routes. The degree of diffusiveness of phase transition and relaxor behaviour are more for CS ceramic when compared to MWS ceramic with y = 0.40. From modulus measurements, the values of Kt, Keff and d33 at 623 K were 0.99983, 0.99980 and 5.273 nm.V−1 respectively for MWS ceramic with y = 0.25. The piezoelectric constant (d33) decreased with the increase of temperature. The d33 values are higher for the microwave sintered ceramic samples when compared to conventional sintered ceramic samples.
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