| Cu取代Zn对NiCuZn铁氧体磁性能和介电性能的影响 |
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| 引用本文： | 王云燕,张怀武,贺颖,李霖,刘维.Cu取代Zn对NiCuZn铁氧体磁性能和介电性能的影响[J].磁性材料及器件,2012(1):52-55. |
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| 作者姓名： | 王云燕 张怀武 贺颖 李霖 刘维 |
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| 作者单位： | 电子科技大学电子薄膜与集成器件国家重点实验室;电子科技大学通信抗干扰技术国家级重点实验室 |
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| 基金项目： | 国家重点基础研究发展计划(973)资助项目(2007CB310407) |
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| 摘 要： | 用传统的陶瓷工艺合成Ni0.15Cu0.2+0.02xZn0.65-0.02xFe2O4(x=-2,0,2,4)铁氧体。发现Cu取代Zn对样品的微观结构、居里温度、磁性能和介电性能都有很大的影响。磁导率随x的增大先增大后减小,在x=2时取得最大值。但品质因数始终随x的增大而增大。与此同时,居里温度随x的增大而增高。随着x的增大,介电常数增大;而介电损耗先减小后增大,当x=2时取得最小值。实验结果表明,在x=2时,能制备出高性能的NiCuZn铁氧体材料。
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| 关 键 词： | NiCuZn铁氧体 Cu取代 低温烧结 磁性能 介电性能 |
Effect of Cu substitution for Zn on the magnetic and dielectric properties of NiCuZn ferrite |
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| WANG Yun-yan,ZHANG Huai-wu,HE Ying,LI Lin,LIU Wei.Effect of Cu substitution for Zn on the magnetic and dielectric properties of NiCuZn ferrite[J].Journal of Magnetic Materials and Devices,2012(1):52-55. |
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| Authors: | WANG Yun-yan ZHANG Huai-wu HE Ying LI Lin LIU Wei |
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| Affiliation: | 1.State Key Laboratory of Electronic Thin Films and Integrated Devices,University of Electronic Science and Technology of China,Chengdu 610054,China;2.National Key Laboratory of Science and Technology on Communications,University of Electronic Science and Technology of China,Chengdu 611731,Chin |
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| Abstract: | Ni0.15Cu0.2+0.02xZn0.65-0.02xFe2O4(x=-2,0,2 and 4) ferrites were synthesized by conventional ceramic technology.It was found that the substitution of Cu for Zn has great influence on the microstructures,Curie temperature,magnetic and dielectric properties of ferrites.The initial permeability increases with x firstly and then decreases,and maximum initial permeability were obtained in sample with x=2.However,quality factor increases monotonously with x.Simultaneously,the Curie temperature increases with increasing x.With increasing x,the permittivity increases but the dielectric loss tanδ decrease firstly and then increases with minimum at x=2.High performance can be obtained for NiCuZn ferrite with x=2. |
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| Keywords: | NiCuZn ferrite Cu substitution low temperature sintering magnetic properties dielectric properties |
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