In this research, the quadratic magnetoelectric effect for different compositions of barium titanate cobalt ferrite ceramic composites has been reported. Structural analysis was firstly demonstrated using different techniques e.g. x-ray diffraction and scanning electron microscopy, then both the first and the second order magnetoelectric effects were measured and analyzed. It was shown that the magnetic, ferroelectric and magnetoelectric properties of the ceramic composites depend mainly on the weight percentage of the constituents. Sample of 50% weight of barium titanate gave the highest longitudinal and traverse magnetostriction. The maximum induced magnetization as a function of electric field was observed for the sample contains 50% weight of barium titanate with a second order magnetoelectric coupling coefficient value g₃₃₃ = 20 × 10^-18 s/V. This value is considered to be the first estimated quadratic magnetoelectric effect value for a composite material.

Keywords: Mutliferroics, Quadratic magnetoelectric effect, (0-3) Composite