Structural evolution and electromechanical properties of SrTiO3-modified Bi0.5Na0.5TiO3–BaTiO3 ceramics prepared by sol-gel and hydrothermal methods

This article reports structural evolution and electromechanical properties of lead-free (1-x)(0.965Bi0.5Na0.5TiO3-0.035BaTiO3)-xSrTiO3 (BNTBT-100xST with x = 0.00–0.30) ceramics synthesized by sol-gel and hydrothermal methods. The crystal structure investigation shows a compositionally-driven phase transition from the dominant rhombohedral (R) phase to the tetragonal (T) phase. However, the physical properties revealed that BNTBT converts from...