Synthesis and Transport Properties of BIFEVOX-Based Composite Materials

Abstract

The structure and electrical transport properties of Bi₄V_1.5Fe_0.5O_{11 – δ} (BIFEVOX) and Bi₄V_1.5Fe_0.5O_{11 – δ} + xBi₂O₃ composites have been studied as functions of composition and temperature. X‑ray diffraction data have been used to evaluate crystal-chemical parameters of individual compounds. The elemental and phase compositions of the materials have been determined by scanning electron microscopy and X-ray diffraction, and phase transitions of individual phases have been identified. The electrical conductivity of the materials has been determined by impedance spectroscopy.