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论文:2012,Vol:30,Issue(3):378-383 |
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引用本文： |
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王岩, 黄英, 王秋芬, 何倩. 硬软磁纳米复合薄膜的制备及其磁性能[J]. 西北工业大学 |
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Wang Yan, Huang Ying, Wang Qiufen, He Qian. Improving Microwave Absorbing Properties of Hard/Soft Magnetic Nanocomposite Film[J]. Northwestern polytechnical university |
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| 硬软磁纳米复合薄膜的制备及其磁性能 |
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| 王岩, 黄英, 王秋芬, 何倩 |
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| 西北工业大学 理学院应用化学系,陕西 西安 710072 |
| 摘要: |
| 为制备电磁性能优异的薄膜,运用溶胶-凝胶浸渍提拉法制备出BaFe12O19/Ni0.8Zn0.2Fe2O4复合膜,借助X射线衍射仪(XRD)、扫描电子显微镜(SEM)、振动样品磁强计(VSM)和矢量网络分析仪等分析手段表征了复合膜的结构、形貌、并对样品的磁性能和吸波性能进行了研究。结果表明,制得的复合膜在950℃下磁滞曲线呈单一相,磁性能最好,其剩磁高于硬软单膜,饱和磁化强度(Ms)、剩余磁化强度(Mr)和矫顽力(Hc)分别达到32.45emu/g、11.22emu/g和1203.24G。复合薄膜与硬软单膜相比,也有利于拓宽吸收频带,改善其吸波性能。 |
| 关键词:
钡铁氧体
镍锌铁氧体
复合薄膜
交换耦合作用
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| Improving Microwave Absorbing Properties of Hard/Soft Magnetic Nanocomposite Film |
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| Wang Yan, Huang Ying, Wang Qiufen, He Qian |
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| Department of Applied Chemistry,Northwestern Polytechnical University,Xi'an 710072,China |
| Abstract: |
| Sections 1 and 2 of the full paper explain the improvement mentioned in the title. Their core consists of:(1) we use the sol-gel method and the dip-coating process to prepare hard/soft BaFe12O19/Ni0.8Zn0.2Fe2O4 nano-composite film; (2) we characterize its structure,morphology,magnetic properties and microwave absorption prop-erties with X-ray diffractometer,scanning electron microscope,vibrating sample magnetometer and magnetic vectornetwork analyzer. The experimental results,given in Figs. 1 through 5 and Tables 1 and 2,and their analysis showpreliminarily that: (1) the hysteresis curve of the nanocomposite film sintered at 950℃ presents a single phase andthe best magnetic properties; (2) the remnant magnetization strength of the nanocomposite film is higher than thatof hard/soft single film; (3) its saturation magnetization strength,remnant magnetization strength and coercivityare 32. 45 emu/g,11. 22 emu/g and 1203. 24 G respectively; (4) the microwave absorption properties of thenanocomposite film are superior to those of hard/soft single film. Section 3 gives the preliminary conclusions in full. |
| Key words:
characterization
exchange coupling
magnetic properties
magnetic thin films
morphology
nano-composites
scanning electron microscopy
sol-gels
X-ray diffraction
dip-coating process
Ba-fer-rite
NiZn-ferrite
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| 收稿日期: 2011-06-12
修回日期:
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| DOI: |
| 基金项目: 航天科技创新基金(NBXT0002)；航天支撑技术基金(NBXW0001)资助 |
| 通讯作者:
Email： |
| 作者简介: 王岩(1985-),西北工业大学博士研究生,主要从事磁性材料和吸波材料的研究。
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| 作者相关文章 |
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| 王岩 在本刊中的所有文章 |
| 黄英 在本刊中的所有文章 |
| 王秋芬 在本刊中的所有文章 |
| 何倩 在本刊中的所有文章 |
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参考文献: |
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