Dielectric and ferroelectric properties of modified-BaTiO3 lead-free ceramics prepared by solid solution method

Barium titanate (BaTiO3) has been recognized as an important perovskite ceramic since its discovery due to its excellent dielectric, ferroelectric and piezoelectric properties. Its modifications have been studied in many perspectives depending on applications. In this review, the basic principles of BaTiO3 were described, then followed by the explanation on the recent modifications of BaTiO3 to improve the dielectric properties. Relaxor ferroelectric behavior of BaTiO3 was revealed by combining BaTiO3 with other Bi-based perovskites. These modified- BaTiO3 opened the opportunities for emerging energy storage applications. Next, the modifications for ferroelectric and ferromagnetic aspects were further discussed. BaTiO3 can also be doped by other ions to enhance such properties. Solid solution between Bi-based perovskites such as BiFeO3, (Bi0.5K0.5)TiO3, or Bi(Zn0.5Ti0.5)O-3 and BaTiO3 can also improve ferroelectric and ferromagnetic properties. Therefore, these details of recent BaTiO3 modifications may provide guidance for the next BaTiO3 investigations in order to gain the maximum benefits from BaTiO3.

Automated summary

This review provides an overview of the basic principles and recent modifications of barium titanate (BaTiO3) to improve its dielectric properties. The combination of BaTiO3 with other perovskite ceramics, such as BiFeO3, (Bi0.5K0.5)TiO3, or Bi(Zn0.5Ti0.5)O-3, has shown potential for enhancing ferroelectric and ferromagnetic properties. The findings in this review may guide future investigations in order to maximize the benefits of BaTiO3.