Enhanced magnetic and ferroelectric properties of textured multiferroic Bi5Ti3FeO15-CoFe2O4 ceramics prepared by plasma activated sintering

Abstract

Textured multiferroic Bi5Ti3FeO15-CoFe2O4 (BTFO-CFO) ceramics were prepared via microwave hydrothermal synthesis followed by plasma activated sintering. BTFO-CFO ceramics with CFO nanoparticles distributed between the BTFO layers exhibit a high degree of texture (f =0.8) along the c-axis crystallographic orientation, which was confirmed by a combination of XRD, SEM and TEM. BTFO-CFO composite ceramics exhibit desirable magnetic and ferroelectric properties due to the ferromagnetic phase (CFO) and textured ferroelectric phase (BTFO). The current work provides a feasible method to fabricate textured multiferroic composite ceramics.