Magnetic properties of NiCuZn ferrites with addition of tungsten trioxide

The effect of WO 3 addition on the properties of NiCuZn ferrite, (Ni 0.2Cu 0.2Zn 0.6O) 1.02(Fe 2O 3) 0.98, has been investigated in this study. The enhanced electrical and magnetic properties obtained from WO 3 addition into NiCuZn ferrites were also shown in this study. Q-factor at 10 MHz of NiCuZn ferrites increased at higher electrical resistivity, but no significant change in initial permeability. The resonance frequency of those NiCuZn ferrites was shifted to a higher range, which means relaxation time was also decreased over 0.6 wt% of WO 3 content.