| 低温烧结BaCoTiFe_(10)O_(19)铁氧体的微结构及高频磁性能 |
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| 引用本文： | 殷水明,贾利军,张怀武,李涛.低温烧结BaCoTiFe_(10)O_(19)铁氧体的微结构及高频磁性能[J].磁性材料及器件,2009,40(6):60-63. |
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| 作者姓名： | 殷水明 贾利军 张怀武 李涛 |
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| 作者单位： | 电子科技大学,微电子与固体电子学院,四川成都,610054 |
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| 基金项目： | 国家自然科学基金资助项目，国家自然科学基金创新群体项目，科技部国际合作项目，国家基础研究(973)资助项目 |
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| 摘 要： | 采用传统陶瓷工艺制备了BaCoTiFe10O19铁氧体,结合相结构、显微形貌分析和对材料磁化机理的讨论,主要研究了Bi2O3加入量和烧结温度对钡铁氧体高频磁性的影响.实验表明,起始磁导率和共振频率随Bi2O3加入量的变化存在极值,当Bi2O3的加入量为7.5mol%时钡铁氧体具有较高的磁导率和较低的磁共振频率,偏离7.5mol%均导致磁导率的降低和磁共振频率的升高;高烧结温度导致晶粒尺寸的长大和晶格结构的完善,有利于提高材料的磁导率,同时降低磁共振频率.
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| 关 键 词： | BaCoTiFe_(10)O_(19)铁氧体 Bi_2O_3添加 微结构 高频磁性能 二次再结晶 |
Microstructure and High Frequency Magnetic Properties of Low-Temperature Sintered BaCoTiFe_(10)O_(19) Ferrites |
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| YIN Shui-ming,JIA Li-jun,ZHANG Huai-wu,LI Tao.Microstructure and High Frequency Magnetic Properties of Low-Temperature Sintered BaCoTiFe_(10)O_(19) Ferrites[J].Journal of Magnetic Materials and Devices,2009,40(6):60-63. |
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| Authors: | YIN Shui-ming JIA Li-jun ZHANG Huai-wu LI Tao |
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| Affiliation: | YIN Shui-ming,JIA Li-jun,ZHANG Huai-wu,LI Tao Institute of Micro-Electronics , Solid-Electronics,University of Electronic Science , Technology,Chengdu 610054,China |
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| Abstract: | BaCoTiFe10O19 ferrites were prepared by traditional ceramics method.Effect of additive amount of bismuth oxide and sintering temperature on microstructure and high-frequency magnetic properties were studied with XRD,SEM and the measurements of complex permeability.It indicated that barium ferrite with additive amount of bismuth oxide 7.5mol% has the lowest magnetic resonant frequency and the highest initial permeability,any deviation from 7.5mol% will results in higher resonant frequency and lower initial p... |
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| Keywords: | BaCoTiFe_(10)O_(19) ferrite Bi_2O_3 addition microstructure high-frequency magnetic properties recrystallization |
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