| 溶胶-凝胶法制备的LiLaxFe5-xO8纳米晶材料的微波吸收特性 |
| |
| 引用本文： | 云月厚,张伟,李国栋.溶胶-凝胶法制备的LiLaxFe5-xO8纳米晶材料的微波吸收特性[J].磁性材料及器件,2003,34(1):12-13,19. |
| |
| 作者姓名： | 云月厚 张伟 李国栋 |
| |
| 作者单位： | 内蒙古大学,物理系,内蒙古,呼和浩特,010021 |
| |
| 基金项目： | 内蒙古自然科学基金，20010901-10， |
| |
| 摘 要： | 采用溶胶-凝胶法制备了掺稀土元素镧的锂铁氧体纳米晶粉末，就镧元素的含量对锂铁氧体吸波性能的影响进行了对比研究。实验表明，用聚乙二醇凝胶法制备的LiLaxFe5-xdO8纳米晶粉末，当x=0.03时，对微波吸收效果最佳，在涂层厚度1.2mm，测试频段为7.5～11.9GHz内,35dB带宽为2.5GHz，在10.6GHz处，吸收峰值达45dB。
|
| 关 键 词： | 溶胶－凝胶法 LiLaxFe5－xO8 稀土代换 锂铁氧体 纳米晶材料 微波吸收特性 |
| 文章编号： | 1001-3830(2003)01-0012-02 |
Microwave Absorbing Properties of LiLaxFe5-xO8 Nanocrystalline Materials Prepared by Sol-gel Technique |
| |
| YUN Yue-hou,ZHANG Wei,LI Guo-dong.Microwave Absorbing Properties of LiLaxFe5-xO8 Nanocrystalline Materials Prepared by Sol-gel Technique[J].Journal of Magnetic Materials and Devices,2003,34(1):12-13,19. |
| |
| Authors: | YUN Yue-hou ZHANG Wei LI Guo-dong |
| |
| Affiliation: | YUN Yue-hou,ZHANG Wei,LI Guo-dong Department of Physics,Inner Mongol University,Hohhot 010021,China |
| |
| Abstract: | LiLaxFe5-xO8 nanocrystalline ferrite powders were prepared by sol-gel technique, and their microwave absorption properties have been studied. The result indicates that LiLa0.03Fe4.97O8 sample has the best microwave absorption properties. The absorption quantity of LiLaxFe5-xO8 is over 35dB in the frequency range of 9.4 to 11.9GHz for a coat thickness of 1.2mm. The absorption peak of 45dB at 10.6GHz is found for sample LiLa0.03Fe4.97O8. |
| |
| Keywords: | sol-gel method rare earth substitution lithium ferrite nanocrystalline materials microwave-absorption properties |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
