Structural, microstructural and impedance spectroscopy study of functional ferroelectric ceramic materials based on barium titanate

The differences between the physical properties of barium titanate BaTiO₃ and newly obtained BaHf_xTi_1-xO₃ were identified. These ceramics were prepared by solid-phase reaction from simple oxides and carbonates using the conventional method. The structure and morphology of investigated samples were characterised by X-ray diffraction (XRD) and scanning electron microscopy (SEM). The application of impedance spectroscopy made possible to characterize of these materials in the terms of electrical properties