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无机材料学报

无机材料学报

• 研究论文 • 上一篇    下一篇

贫铁MnZn铁氧体磁导率的频散特性解析

黄爱萍1,3, 何华辉1, 冯则坤1, 汪世雷2, 熊惟皓3   

  1. 华中科技大学1．电子科学与技术系; 2．化学系; 3．材料科学与工程学院, 武汉 430074
  • 收稿日期:2006-07-04 修回日期:2006-09-22 出版日期:2007-05-20 网络出版日期:2007-05-20

Analysis on Permeability Spectra of Manganese-Zinc Ferrites with Fe-poor Composition

HUANG Ai-Ping 1,3, HE Hua-Hui1, FENG Ze-Kun1, WANG Shi-Lei2, XIONG Wei-Hao3   

  1. 1. Department of Electronic Science & Technology; 2. Department of Chemistry; 3. Department of Materials Science and Engineering, Huazhong University of Science & Technology, Wuhan 430074, China
  • Received:2006-07-04 Revised:2006-09-22 Published:2007-05-20 Online:2007-05-20

PDF (PC)

1806

被引次数

1

摘要： 采用传统氧化物法制备了MnZn铁氧体材料和NiZn铁氧体材料. 分析了贫铁MnZn铁氧体磁导率的频散特性, 在K. Itoh等人二段型频散特性模型的基础上, 提出了与实际测量数据更相符合的三段型频散特性模型, 并用三段型频散特性模型计算模拟了磁导率的频率特性曲线. 同时通过研究Fe2O3、TiO2含量对贫铁MnZn铁氧体磁导率的影响, 得出三段型频散特性模型各参数对磁导率频率特性的不同贡献.

关键词: MnZn铁氧体, 贫铁, 磁导率频散特性

Abstract: MnZn ferrites and NiZn ferrites were prepared by conventional ceramic processing techniques. The frequency dependence of permeability of MnZn ferrites with Fe-poor composition (less than 50mol% of Fe2O3) was studied. Tri-segment frequency dispersion model which consists of domain wall motion, magnetization rotation and gyro-magnetic spin rotation was used to simulate the permeability spectra of ferrites. Effects of Fe2O3 and TiO2 content on
permeability of Fe-poor MnZn ferrites were also studied to analyze contribution of the simulating parameters.

Key words: MnZn ferrites, Fe-poor, permeability spectra

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