Structural and dielectric properties of Ba0.8Sr0.2Ti0.96Sn0.04O3 ceramics

Perovskite type ceramics Ba0.8Sr0.2Ti0.96Sn0.04O3, a relaxor composition prepared through solid state reaction route and calcinated at temperature is 1400°C for 3 hours with intermediate mixing. The room temperature XRD study suggests that all the samples have the tetragonal symmetry with space group p4mm. The pellets were sintered at 1400°C for 3 hrs. The dielectric measurements at different frequency show that dielectric constant increases near Tc. Loss factor was decreased with increasing temperature but continue to increase as the temperature further increase above 100°C.