Abstract
The combined influence of a two-step sintering (TSS) process and addition of V2O5 on the microstructure and magnetic properties of NiZn ferrite was investigated. As comparison, samples prepared by the conventional single-step sintering (SSS) procedure were also studied. It was found that with 0.3wt% V2O5 additive, the sample sintered by the two-step sintering process at a high temperature of 1250°C for 30min and a lower temperature of 1180°C for 3h exhibited more homogeneous microstructure and higher permeability with a high Q-factor. The results showed that the TSS method with suitable additive brought positive improvement of the microstructure and magnetic properties of NiZn ferrite.
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