Effect of TiO2 doping on properties of MnZn power ferrite
Low power MnZn power ferrites were prepared using traditional oxide ceramic methods.The effects of TiO2 doping on the microstructure,saturation magnetic induction,initial magnetic permeability,and power loss of power ferrites were studied.The results show that adding an appropriate amount of TiO2 can improve grain unifor-mity,increase saturation magnetic induction strength,initial magnetic permeability,and reduce losses,especially at low temperatures.However,adding too much TiO2 can cause abnormal grain growth,decrease saturation magnetic induction strength,and worsen high temperature losses.When the TiO2 content is 0.25％,the ferrite sintered sam-ples have uniform grain size,maximum saturation magnetic induction strength,and low loss.
MnZn power ferriteTiO2 dopingmicrostructuremagnetic propertymagnetic loss
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