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Reduced graphene oxide: a novel black body emitter for advanced infrared decoy flares
Journal of Energetic Materials ( IF 2.1 ) Pub Date : 2020-05-25 , DOI: 10.1080/07370652.2020.1762800
Sherif Elbasuney 1, 2 , Amr A. Elmotaz 2 , M. A. Sadek 3 , Hesham Tantawy 2 , M. Yehia 2 , Gharieb S. El-Sayyad 2, 4
Affiliation  

ABSTRACT Reduced graphene oxide (RGO) possesses unique thermal and optical properties. It could act as black body emitter with high-infrared emissivity. RGO could meet wide applications in advanced infrared decoy flares. In this study, RGO nano-sheets were synthesized through the reduction of GO after applying Hummers’ method using graphite powder as a precursor. The synthesized RGO owns 10 µm dimensions and 10 nm thicknesses. TEM analysis revealed the amorphous structure of the prepared nano-sheets. XRD diffractogram demonstrated the amorphous RGO structure. Moreover, Raman spectroscopy confirmed the complete reduction of GO into RGO. In addition, decoy flare formulations based on RGO, reactive metal fuels, and fluorocarbon polymer were developed. Additionally, thermal signature was evaluated using Arc-Optics IR spectrometer (1–6 µm) to reference formulation. Our results revealed that nanocomposite flare based on 6 wt % RGO demonstrated superior spectral intensity with an increase in average intensity by 147%. Moreover, advanced radiometric performance with superior relative intensity value (Ɵ) of 0.7 was recorded. To sum up, RGO can act as an excellent source of carbonaceous materials that can strengthen incandescence emission. Surplus magnesium could vaporize and combust with substantial heat output that could promote black body emission.

中文翻译:

还原氧化石墨烯:一种用于高级红外诱饵耀斑的新型黑体发射器

摘要 还原氧化石墨烯 (RGO) 具有独特的热学和光学特性。它可以作为具有高红外发射率的黑体发射器。RGO 可以满足先进红外诱饵耀斑的广泛应用。在本研究中,采用 Hummers 方法,以石墨粉为前驱体,通过还原 GO 合成了 RGO 纳米片。合成的 RGO 具有 10 µm 的尺寸和 10 nm 的厚度。TEM 分析揭示了制备的纳米片的无定形结构。XRD 衍射图证明了无定形 RGO 结构。此外,拉曼光谱证实了 GO 完全还原为 RGO。此外,还开发了基于 RGO、活性金属燃料和碳氟化合物聚合物的诱饵火炬配方。此外,使用 Arc-Optics IR 光谱仪 (1–6 µm) 评估参考配方的热特征。我们的结果表明,基于 6 wt% RGO 的纳米复合材料耀斑表现出优异的光谱强度,平均强度增加了 147%。此外,还记录了具有 0.7 的优越相对强度值 (Ɵ) 的先进辐射测量性能。综上所述,RGO 可以作为增强白炽光发射的碳质材料的极好来源。多余的镁会蒸发和燃烧,产生大量热量输出,从而促进黑体发射。7 被记录。综上所述,RGO 可以作为增强白炽光发射的碳质材料的极好来源。多余的镁会蒸发和燃烧,产生大量热量输出,从而促进黑体发射。7 被记录。综上所述,RGO 可以作为增强白炽光发射的碳质材料的极好来源。多余的镁会蒸发和燃烧,产生大量热量输出,从而促进黑体发射。
更新日期:2020-05-25
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