Effects of Co_2O_3-Bi_2O_3 co-additive on the properties of NiCuZn/PZT composite materials

Firstly, Pb0.95Sr0.05(Zr0.52Ti0.48)O3 (abbreviated as PZT ) nanopowder was synthesized by a sol-gel method. Then NiCuZn/PZT ferrite/ceramic composites were prepared by a solid state reaction method. Effects of Co2O3-Bi2O3 co-additive on the properties of NiCuZn/PZT composites were investigated. When the Bi2O3 doped amount is 2.5% (mass fraction), the proper additions of Co2O3 not only make the quality factor increases to 235, but also the permittivity and bulk density increase to 55 and 5.01 g/cm3 respectively, and the dielectric loss decreases to 0.065. The electromagnetic properties of composites can satisfy the production requirements both of capacitors and inductors. It is promising as a candidate of new multilayer chip filter with inductor and capacitor dual performance.