Improved electromagnetic properties of Vanadium doped Ni- Zn ferrite for high frequency Applications

Received: 14/Apr/2019, Accepted: 23/Apr/2019, Online: 30/Apr/2019 AbstractA series of samples with the composition Ni0.65 Zn0.35 Fe2 O4 + x V2 O5 (x = 0.0 to 1.5 wt % in steps of 0.3 wt %) have been prepared by double sintered ceramic method. They are calcined for four hours at 900 o C and sintering temperature is maintained at 1210 0 c at for 4 hours in air atmosphere. The samples are characterized by X-ray diffraction, Saturation magnetization and Curie temperature. Both the saturation magnetization and Curie temperature have been observed to decrease slightly with increasing concentration of the vanadium. An increasing trend in D.C. resistivity is observed in vanadium series up to x = 0.6 wt%. The μi is decreased slightly for lower concentrations and steeply for higher concentration. Higher resistivity and near stable magnetic properties are exhibited with vanadium concentration x = 0.6 wt%. Dissolution of Vanadium into ferrite lattice for minor additions is responsible for the modifications in the electrical and magnetic properties.