Analysis of piezoelectric properties of barium titanate (BaTiO3) using ANSYS APDL: a specialized study in electromechanical engineering

Barium titanate is an important ceramic material in piezoelectric devices. Barium titanate (BT) was prepared via a hydrothermal process at 200 °C for 24 hours. This study initially focused on characterizing barium titanate nanoparticles (BaTiO3) by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR) was used to determine the crystalline structure of the material and the functional groups present in the sample. Additionally, the structure and composition of BaTiO3 were confirmed using an energy dispersive spectroscopy (EDS). A disk of barium titanite was made and sintered at a temperature of 1000°C for 4 hours. To simulate the material to confirm its piezoelectric properties, the density was measured and impedance spectra were studied to determine the relative and absolute permittivity; this data was then entered into APDL ANSYS program. The complexity of the resonant modes present in the material causes a piezoelectric response with multiple peaks over a wide frequency range. These peaks can be used to study situations where a specific frequency response of the material is required.