Studies on Dielectric and Ferroelectric Properties of CoFe2O4 + BNT Composites

摘要

Now a days the materials which are showing both ferroelectric and ferromagnetic properties udare interesting. In this work, we have prepared cobalt ferrite and bismuth sodium titanate udcomposites by conventional ceramic method. With X-ray Diffraction the phase is confirmed udwith no other impurity peaks. By the help of SEM the surface morphology of composite is udcharacterisation. From ferroelectric study, it is observed that the coercivity decreasing and udremnant polarisation, saturation polarisation are increasing with BNT weigtht fraction. udVariation of dielectric constant with respect to the frequency has been studied. It is observed udthat dielectric constant is decreasing with frequency and increasing with increasing weight udfraction of BNT. ud