發(fā)布時(shí)間：2019-04-17 11:02

【摘要】：針對(duì)球形鐵磁顆粒密度較大、易磁化產(chǎn)生渦流損耗的缺點(diǎn),用一個(gè)簡單的化學(xué)還原法在常溫常壓下制備了鐵納米線。將質(zhì)量分?jǐn)?shù)為40%的鐵納米線顆粒與石蠟混合,制得測試樣品。結(jié)果表明:最小反射損耗達(dá)到了-27dB,而且在C波段和Ku波段都有著良好的吸波性。這主要是由于鐵納米線結(jié)構(gòu)具有高各向異性、較大的比表面積等使其形成了更多的界面極化和界面反射,從而提高了電磁吸波性能。同時(shí),采用的原位還原法操作簡單、溫和,且不需要特殊要求,成本低、耗時(shí)短,能夠用于工業(yè)生產(chǎn)。
[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.
【作者單位】： 國網(wǎng)重慶市電力公司電力科學(xué)研究院;重慶大學(xué)光電工程學(xué)院;
【基金】：國家自然科學(xué)基金(61203098) 國網(wǎng)重慶市電力公司電力科學(xué)研究院資助項(xiàng)目(SGCQDK00JS1500117)
【分類號(hào)】：TB34
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本文編號(hào)：2459361