Electromagnetic Properties of PZT-NiCuZn Composite Materials

Firstly, we prepared Pb((Zr0.52Ti0.48)O3 (PZT) nanocrystalline by sol-gel method. Then PZT-NiCuZn composite ferrites were prepared by solid-state reaction method. We examined the effect of contents of PZT nanocrystalline on the microstructure evolution, phase composition, densification and electromagnetic properties of the composite materials. The results showed that no reaction occurs between the PZT and ferrite, and spinel ferrite is the main phase. As the amount of PZT increases, the initial permeability decreases gradually, and the quality factor and the permittivity increase markedly. Meanwhile the composites have relatively higher dielectric constant and good performance in high frequency range, which can be used in anti-EMI filters.