| (La0.5Na0.5)xBa1-xFe12O19纳米铁氧体粉末的微波吸收特性 |
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| 引用本文： | 刘学东,卢佃清,范喆,徐超.(La0.5Na0.5)xBa1-xFe12O19纳米铁氧体粉末的微波吸收特性[J].磁性材料及器件,2007,38(1):40-42. |
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| 作者姓名： | 刘学东 卢佃清 范喆 徐超 |
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| 作者单位： | 1. 淮海工学院,数理科学系,江苏连云港,222005
2. 内蒙古大学,理工学院,内蒙古呼和浩特,010021 |
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| 基金项目： | 淮海工学院校科研和教改项目 |
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| 摘 要： | 利用柠檬酸溶胶-凝胶自蔓延燃烧法合成掺杂稀土元素镧的M型六角铁氧体(La0.5Na0.5)xBa1-xFe12O19 (x=0.0,0.1,0.3,0.5)纳米粉末,铁氧体的晶型通过X射线衍射得到证实,研究了镧含量对铁氧体的复介电常数、复磁导率的影响.实验结果表明,添加适量的稀土镧能显著地改善铁氧体的吸波性能,掺杂量为x=0.3的样品微波性能最佳.
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| 关 键 词： | 溶胶-凝胶自蔓延燃烧法 稀土掺杂 微波吸收特性 |
| 文章编号： | 1001-3830(2007)01-0040-03 |
| 修稿时间： | 2006-07-17 |
Microwave Absorbing Properties of (La0.5Na0.5)xBa1-xFe12O19 Nanosized Ferrite Powders |
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| LIU Xue-dong,LU Dian-qing,FAN Zhe,XU Chao.Microwave Absorbing Properties of (La0.5Na0.5)xBa1-xFe12O19 Nanosized Ferrite Powders[J].Journal of Magnetic Materials and Devices,2007,38(1):40-42. |
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| Authors: | LIU Xue-dong LU Dian-qing FAN Zhe XU Chao |
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| Affiliation: | 1. Department of Maths and Physics, Huaihai Institute of Technology, Lianyungang 222005, China; 2. School of Science and Technology, Inner Mongolia University, Hohhot 010021, China |
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| Abstract: | (La_(0.5)Na_(0.5))_xBa_(1-x)Fe_(12)O_(19)M-type hexagonal ferrite powder was synthesized by citric acid sol-gel auto-combustion. The crystal of the ferrite was confirmed by XRD. The influence of doping amount on the complex dielectric constant and permeability of the ferrite was researched. The result indicates that microwave absorbtion properties of the ferrite can be improved evidently by doping proper amount of lanthanum. The sample (La_(0.5)Na_(0.5))_xBa_1-_xFe_(12)O_(19) has good microwave absorbtion properties. |
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| Keywords: | (La0 5Na0 5)xBa1-xFe12O19 |
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