Study of the Phase Transition in Polycrystalline Ba(Ti_0.90Sn_0.10)O₃

Abstract

The results of X-ray, dilatometric and dielectric measurements of the Ba(Ti_0.90Sn_0.10)O₃, (BTS10) polycrystalline sample are presented. A cubic symmetry at room temperature (T_r) was determined. The dielectric measurements showed the influence of Sn addition on the character of the phase transition in the BaTiO₃ structure. A diffuse phase transition (DPT) for BTS10 was found. In the paraelectric phase the change of the γ parameter at Burns temperature (T_B) takes place. This temperature corresponds to the glass temperature (T_g), which was observed by dilatometric measurements.

Keywords:

• Barium stannate titanate
• ceramics
• dielectric properties
• phase transition
• polar regions