LIANG Hai-rong, SU Li-na， LIU Peng*
（College of Physics and Information Technology, Shaanxi Normal University, Xi′an 710062, Shaanxi, China）
Abstract:
xBi0.5Na0.5TiO3+(1-x)Ni0.2Cu0.2Zn0.62O(Fe2O3)(BNT-NiCuZn)0.98 compound ceramics are perpared by using a traditional ceramic processing with addition of 3%Bi2O3 . The effects of the concentration of Bi0.5Na0.5TiO3 (BNT) on the microstructures, dielectric and magentic properties of NiCuZn ceramic are investigated. X-ray diffraction (XRD) results showed that the sintered ceramics are two phase composites consisted of BNT and Ni0.2Cu0.2Zn0.62O(Fe2O3)0.98 (NiCuZn) phases. No significant chemical reactions occurred between BNT and NiCuZn ceramics during firing. The real permittivity increase and the permeability decreases with the BNT content increase.The 40% BNT+60%NiCuZn composite exhibits excellent integrated properties (εr =86.85, tanδε|1MHz = 0.023, μr=33.8, tanδμ(|1MHz=0.18), which can be used not only as the inductors and resistors but as the capacitors.
KeyWords:
composite material; Bismuth-Sodium titanate; NiCuZn ferrite; dielectric constant;permeability
