SrBi2Nb2O9 (SBN) compound was synthesized by the hydrothermal method at 220°C for 8h. The dielectric characteristics of ferroelectric SBN ceramic in the 10 Hz – 13 MHz frequency range at various temperatures (300-950 K) have been studied. This study relates initially to measurements of dielectric constant (εr'), and the dielectric losses (tanδ) according to the temperature, as well as the determination of the Curie temperature of SBN. The nature of ferroelectric - paraelectric transition was then deduced. The bulk conductivity of SBN ceramic was performed at different temperatures and the activation energy was calculated.
Key words: Hydrothermal synthesis, Dielectric properties, Ferroelectric transition, Ionic conductivity
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