TY - JOUR AU - Thongmee, Navavan AU - Sumang, Rattiphorn AU - Pojprapai, Soodkhet AU - Klaytae, T PY - 2018/06/27 Y2 - 2024/03/29 TI - Influence of BLT content on phase structure and electrical properties of (1-x)BT-xBLT ceramic JF - Journal of Metals, Materials and Minerals JA - J Met Mater Miner VL - 28 IS - 1 SE - Original Research Articles DO - UR - https://jmmm.material.chula.ac.th/index.php/jmmm/article/view/445 SP - AB - (1-<em>x</em>)BaTiO<sub>3</sub>-<em>x</em>(Bi<sub>3.25</sub>La<sub>0.75</sub>)Ti<sub>3</sub>O<sub>12</sub>; (1-<em>x</em>)BT-<em>x</em>BLT ceramics with <em>x </em>= 0-0.20 wt.% were prepared by a solid-state reaction method. The BaTiO<sub>3</sub> (BT) and (Bi<sub>3.25</sub>La<sub>0.75</sub>)Ti<sub>3</sub>O<sub>12</sub> (BLT) powders were, respectively, calcined at 1100°C and 750°C for 4 h. The (1-<em>x</em>)BT-<em>x</em>BLT samples were sintered between 1250°C and 1350°C. The structure exhibited a transformation from tetragonal to orthorhombic with increasing in<em> </em>BLT contents. The average grain size increased with increasing BLT contents. The maximum density and relative density about 6.19 ± 0.07 g/cm<sup>3</sup>and 99.3% were obtained for the composition of 0.95BT-0.05BLT. The Curie temperature (<em>T</em><sub>c</sub>) continuously decreased with increase in BLT contents. The dielectric constant showed a broad peak and pronounced dependence on frequency, which implied an existence of the relaxor behavior. The hysteresis parameters such as saturation polarization (<em>P</em><sub>s</sub>~18.06 mC/cm<sup>2</sup>), remanent polarization (<em>P</em><sub>r</sub>~12.64 mC/cm<sup>2</sup>) and coercive field (<em>E</em><sub>c</sub>~11.09 kV/cm) can be improved when<em> </em>BLT content is increased to 0.05 wt.%. ER -