Structure and dielectric properties of (1-x)Bi_0.5Na_0.5TiO_3-xBaTiO₃ piezoceramics prepared using hydrothermally synthesized powders.

ABSTRACT: The influence of different processing parameters and various Ba²⁺ addition (up to 10 mol%) on the structure and dielectric properties of Bi_0.5Na_0.5TiO₃-BaTiO₃ (BNT-BT) ceramics was investigated. The powders were hydrothermally synthesized in the alkaline environment at 180°C for different time periods. X-ray diffraction confirmed the presence of dominant rhombohedral Bi_0.5Na_0.5TiO₃ phase and a small amount of secondary pyrochlore Bi₂Ti₂O₇ phase in the pure BNT powders. In addition, one-dimensional Na₂Ti₂O₇ structure was also observed in the powder hydrothermally treated for a long time (i.e. 48 h). The amount of secondary pyrochlore phase

SUBMITTER: Nesterovic A 

PROVIDER: S-EPMC8316791 | biostudies-literature | 2021 Jul

REPOSITORIES: biostudies-literature