Dielectric and Magnetoelectric Properties of Nano-Microscale Lead-Free Composite by 0.4Co-Ferrite and 0.6(K0.5Na0.5)NbO3-Based Ferroelectric Matrix
Lead-free multiferroic magnetoelectric composites were prepared by incorporating the dispersed 0.4CoFe2O4 ferromagnetic nanoparticles into 0.6(K0.5Na0.5)NbO3-LiSbO3 ferroelectric micromatrix. From the x-ray diffraction analysis, it was observed that almost no chemical reaction occurs between the ferrite and the ferroelectric materials used to form the composite. Dielectric properties as a function of frequency were measured. The magnetoelectric couple effect was given as a function of magnetic field with a maximum magnetoelectric voltage coefficient of 15.01mV·cm-1·Oe-1 at 1kHz, which was a very high value in the lead-free magnetoelectric composites system for the potential use on actuators and sensors, etc.
Linli Xu, Wenya Tian and Elwin Mao
Y. X. Ye et al., "Dielectric and Magnetoelectric Properties of Nano-Microscale Lead-Free Composite by 0.4Co-Ferrite and 0.6(K0.5Na0.5)NbO3-Based Ferroelectric Matrix", Applied Mechanics and Materials, Vols. 80-81, pp. 271-275, 2011