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首页> 外文期刊>Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics >Facile fabrication of SiC/FexOy embellished graphite layers with enhanced electromagnetic wave absorption
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Facile fabrication of SiC/FexOy embellished graphite layers with enhanced electromagnetic wave absorption

机译：具有增强的电磁波吸收的SiC / Fexoy缀饰石墨层的舒适性制造

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摘要

SiC/Fe2O3/Fe3O4/Fe embellished graphite layers (SiC/FexOy EGL) have attracted the interest of many scholars due to their excellent absorbing properties. Here, for the first time, a method for obtaining the SiC/FexOy EGL with silica sol, FeCl3, and graphite layers (GL) as raw materials by facile co-precipitation and then heat treatment at different temperatures is reported. For the SiC/FexOy EGL, the dielectric constant can be adjusted by controlling the heat treatment temperature. The prepared SiC/FexOy EGL architecture exhibits characteristics of broad bandwidth, excellent high frequency absorbing properties, and adjustable dielectric properties which attribute to the combination losses, such as the magnetic loss of FexOy, the dielectric loss of SiC and GL. The minimum reflection loss (RL) can reach -41.8 dB at 14 GHz in absorbent/paraffin composites. The bandwidth of the RL below -10 dB covers 6.56 GHz (11.28 -17.84 GHz) with a thickness of 2 mm. The microwave absorption mechanism of the SiC/FexOy EGL composites is studied and the microwave absorption of the composites is improved. (C) 2019 Elsevier B.V. All rights reserved.
机译：SIC / FE2O3 / FE3O4 / FE缀饰石墨图层（SIC / FEXOY EGL）由于其优异的吸收性能而吸引了许多学者的兴趣。这里，首次通过容易沉淀获得用二氧化硅溶胶，FECL3和石墨层（GL）作为原料获得SiC / Fexoy EGL的方法，然后报道在不同温度下的热处理。对于SiC / Fexoy EGL，可以通过控制热处理温度来调节介电常数。制备的SiC / Fexoy EGL架构具有宽带宽，优异的高频吸收性能，可调节的电介质特性，其归因于组合损失，例如Fexoy的磁力损失，SiC和GL的介电损耗。最小反射损耗（RL）可以在吸收剂/石蜡复合材料中以14 GHz达到-41.8dB。 RL低于-10 dB的带宽覆盖6.56GHz（11.28 -17.84GHz），厚度为2毫米。研究了SiC / Fexoy EGL复合材料的微波吸收机理，并改善了复合材料的微波吸收。 （c）2019 Elsevier B.v.保留所有权利。

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