| W型六角铁氧体的制备及吸波性能 |
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| 引用本文： | 午丽娟,沈国柱,徐政,李荣斌,黄立琴.W型六角铁氧体的制备及吸波性能[J].磁性材料及器件,2007,38(5):29-32. |
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| 作者姓名： | 午丽娟 沈国柱 徐政 李荣斌 黄立琴 |
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| 作者单位： | 上海电机学院,机械工程系,上海,200240;同济大学,材料科学与工程学院,上海,200092;同济大学,材料科学与工程学院,上海,200092;上海电机学院,机械工程系,上海,200240 |
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| 摘 要： | 首先用柠檬酸溶胶-凝胶(sol-gel)法制备了BaCo2Fe16O27型六角铁氧体,经不同温度焙烧后,分析产物的结构和形貌,确定出较优的焙烧温度,然后以此工艺制备W型Ba(Zn1-x Cox)2Fe16O27(x＝0,0.2,0.6,0.8,1.0)六角铁氧体,分析其吸波性能.研究表明,x＝0.8时,样品的有效吸波带宽可拓宽到12～18 GHz整个波段,吸收峰值可提高到-20dB.
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| 关 键 词： | W型铁氧体 柠檬酸sol-gel法 反射率 |
| 文章编号： | 1001-3830（2007）05-0029-04 |
| 修稿时间： | 2006-08-23 |
Preparation and EM Wave Absorbing Properties of W-type Hexaferrite |
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| WU Li-juan,SHEN Guo-zhu,XU Zheng,LI Rong-bin,HUANG Li-qin.Preparation and EM Wave Absorbing Properties of W-type Hexaferrite[J].Journal of Magnetic Materials and Devices,2007,38(5):29-32. |
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| Authors: | WU Li-juan SHEN Guo-zhu XU Zheng LI Rong-bin HUANG Li-qin |
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| Affiliation: | 1. Department of Mechanical Engineering, Shanghai Dianji University, Shanghai 200240, China; 2. School of Material Science and Engineering, Tongji University, Shanghai 200092, China |
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| Abstract: | Citrate sol-gel process was used to prepare BaCo2Fe16O27 hexaferrite. After roasting at different temperatures, the microstructure and morphology of the samples were analysed to determine proper roasting temperature. Then, W-type Ba(Zn1-xCox)2Fe16O27 hexaferrite was prepared by the same process, and the microwave absorbing properties was studied. The results showed that the effective bandwidth is broadened to whole range of 12~18 GHz, with a maximum absorption of -20dB at x=0.8. |
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| Keywords: | W-type ferrite citrate sol-gel method reflectivity |
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