High-Entropy Lead-Free Perovskite BiKBaSrCaTiO Powders and Related Ceramics: Synthesis, Processing, and Electrical Properties.

A novel high-entropy perovskite powder with the composition BiKBaSrCaTiO was successfully synthesized using a modified Pechini method. The precursor powder underwent characterization through Fourier Transform Infrared Spectroscopy and thermal analysis. The resultant BiKBaSrCaTiO powder, obtained post-calcination at 900 °C, was further examined using a variety of techniques including X-ray diffraction, Raman spectroscopy, X-ray fluorescence, scanning electron microscopy, and transmission electron microscopy.