铁纳米线的制备与电磁吸波性能研究
发布时间：2019-04-17 11:02
【摘要】：针对球形铁磁颗粒密度较大、易磁化产生涡流损耗的缺点,用一个简单的化学还原法在常温常压下制备了铁纳米线。将质量分数为40%的铁纳米线颗粒与石蜡混合,制得测试样品。结果表明:最小反射损耗达到了-27dB,而且在C波段和Ku波段都有着良好的吸波性。这主要是由于铁纳米线结构具有高各向异性、较大的比表面积等使其形成了更多的界面极化和界面反射,从而提高了电磁吸波性能。同时,采用的原位还原法操作简单、温和,且不需要特殊要求,成本低、耗时短,能够用于工业生产。
[Abstract]:In view of the disadvantages of high density of spherical ferromagnetic particles and easy magnetization of eddy current loss, iron nanowires were prepared by a simple chemical reduction method at room temperature and pressure. The samples were prepared by mixing 40% Fe nanowire particles with paraffin wax. The results show that the minimum reflection loss is up to-27 dB, and it has good absorptivity in both C-band and Ku band. This is mainly due to the high anisotropy of iron nanowires and the formation of more interface polarization and interface reflection due to the large specific surface area, which improves the electromagnetic absorbing performance of iron nanowires. At the same time, the in-situ reduction method is simple, mild, does not require special requirements, low cost, short time-consuming, can be used in industrial production.
【作者单位】： 国网重庆市电力公司电力科学研究院;重庆大学光电工程学院;
【基金】：国家自然科学基金(61203098) 国网重庆市电力公司电力科学研究院资助项目(SGCQDK00JS1500117)
【分类号】：TB34
，
本文编号：2459361
[Abstract]:In view of the disadvantages of high density of spherical ferromagnetic particles and easy magnetization of eddy current loss, iron nanowires were prepared by a simple chemical reduction method at room temperature and pressure. The samples were prepared by mixing 40% Fe nanowire particles with paraffin wax. The results show that the minimum reflection loss is up to-27 dB, and it has good absorptivity in both C-band and Ku band. This is mainly due to the high anisotropy of iron nanowires and the formation of more interface polarization and interface reflection due to the large specific surface area, which improves the electromagnetic absorbing performance of iron nanowires. At the same time, the in-situ reduction method is simple, mild, does not require special requirements, low cost, short time-consuming, can be used in industrial production.
【作者单位】： 国网重庆市电力公司电力科学研究院;重庆大学光电工程学院;
【基金】：国家自然科学基金(61203098) 国网重庆市电力公司电力科学研究院资助项目(SGCQDK00JS1500117)
【分类号】：TB34
，
本文编号：2459361
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