Synthesis, morphology and electrical properties of Co2+ substituted NiCuZn ferrites for MLCI applications

摘要: Co2+ is a fast relaxing ion which can enhance microwave properties. This work focuses on the synthesis and analysis of Ni0.25-xCoxCu0.30Zn0.45Fe2O4 (x = 0.00, 0.05, 0.01, 0.15, 0.20 0.25) ferrites by auto combustion method using glycine as chelating agent. From X-ray Diffraction (XRD) spectra, structural parameters are analysed. The lattice parameter (a) decreases due to smaller ionic radius (0.072 nm) replaces Ni2+ (0.078 nm). Bulk density porosity measurements show that there pores imperfections. cation distribution based Neel’s two sublattice model proposed. Transmission Electron Micrographs (TEM) indicate narrow size spherical shaped nanoparticles. DC electrical resistivity (ρD.C.) very important factor low temperature sintered for MLCI applications. Electroplating devices much affected resistivity. Maximum (2.89 × 106 Ω-cm) observed sample with x=0.2...