Dielectric and Magnetoelectric Properties of Nano-Microscale Lead-Free Composite by 0.4Co-Ferrite and 0.6(K_0.5Na_0.5)NbO₃-Based Ferroelectric Matrix

Abstract:

Lead-free multiferroic magnetoelectric composites were prepared by incorporating the dispersed 0.4CoFe₂O₄ ferromagnetic nanoparticles into 0.6(K_0.5Na_0.5)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.

• Periodical: Applied Mechanics and Materials (Volumes 80-81)
• Pages: 271-275
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.80-81.271
• Online since: July 2011
• Authors: You Xiang Ye, Sheng Hua Zhou, Yun Zhou
• Keywords: Dielectric Property, Magnetoelectric Effect, Multiferroic Composite

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