Structure and magnetic properties of Ni Cu Zn ferrite materials with La doping
来源期刊：Rare Metals2017年第3期
论文作者：Yuan-Xun Li Jie Li Qiang Li Guo-Liang Yu Huai-Wu Zhang
文章页码：202 - 204
摘 要：Ni0.3Cu0.07Zn0.63Fe2-xLaxO4 ferrites were prepared by solid phase method and sintered at 1,150 ℃ for6 h.The phase formation,micro structure,and magnetic properties of samples were investigated.With doping of La3+,the samples contain two phases:LaFeO3 and NiCuZn ferrites.Scanning electron microscope（SEM） image shows that La doping constrains the growth of NiCuZn ferrite,which is more uniform.La doping improves magnetic properties of NiCuZn ferrite when x=0.03.The saturation magnetization（Ms） increases first;when x=0.03,the highest value is 75.35 A·m2·kg-1.The permeability increases to the maximum value with frequency and then decreases with the concentration of La3+ increasing.When x=0.03,the maximum value of real permeability at 1 MHz is 333.5,and the loss angle tangent（tanδ） is not more than 0.02.La doping improves the properties of NiCuZn ferrite,which can be applied to low-frequency filters.
Yuan-Xun Li1,2，Jie Li1，Qiang Li1，Guo-Liang Yu1，Huai-Wu Zhang1
1. State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China2. Institute of Electronic and Information Engineering in Dongguan, University of Electronic Science and Technology of China
摘 要：Ni0.3Cu0.07Zn0.63Fe2-xLaxO4 ferrites were prepared by solid phase method and sintered at 1,150 ℃ for6 h.The phase formation,micro structure,and magnetic properties of samples were investigated.With doping of La3+,the samples contain two phases:LaFeO3 and NiCuZn ferrites.Scanning electron microscope（SEM） image shows that La doping constrains the growth of NiCuZn ferrite,which is more uniform.La doping improves magnetic properties of NiCuZn ferrite when x=0.03.The saturation magnetization（Ms） increases first;when x=0.03,the highest value is 75.35 A·m2·kg-1.The permeability increases to the maximum value with frequency and then decreases with the concentration of La3+ increasing.When x=0.03,the maximum value of real permeability at 1 MHz is 333.5,and the loss angle tangent（tanδ） is not more than 0.02.La doping improves the properties of NiCuZn ferrite,which can be applied to low-frequency filters.
关键词：
