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Enhanced antioxidation and microwave absorbing properties of SiC/ SiO_2 coating on carbon fiber

机译：增强碳纤维SiC / SiO_2涂层的抗氧化和微波吸收性能

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摘要

In the manuscript, a uniform SiC/SiO_2 coating was successfully prepared on the surface of carbon fiber by electrolytic plasma spraying method, which is beneficial to the dielectric loss and interfacial polarization. The antioxidation and absorption capacity of electromagnetic waves were greatly improved. The surface morphology, chemical composition, oxidation resistance and electromagnetic wave absorption properties of the coated carbon fibers were analyzed in detail. The effect of sample thickness on the electromagnetic wave loss was investigated in 2-18 GHz. The absorbing mechanism of the coated carbon fiber was discussed. The coated carbon fiber exhibits superior absorbing properties due to the synergistic effect of dielectric loss and reflection loss. The minimum reflection loss of - 11.6 dB at the thickness of 2.3 mm at 7.1 GHz. Meanwhile, the SiC/SiO_2 coating on carbon fiber also has oxidation resistance, which was 28% higher than the bare sample.
机译：在原稿中，通过电解质等离子体喷涂方法成功地在碳纤维表面上成功制备了均匀的SiC / SiO_2涂层，这有利于介电损耗和界面极化。电磁波的抗氧化和吸收能力大大提高。详细分析了涂覆碳纤维的表面形态，化学成分，抗氧化性和电磁波吸收性能。在2-18GHz中研究了样品厚度对电磁波损失的影响。讨论了涂层碳纤维的吸收机理。由于介电损耗和反射损失的协同效应，涂覆的碳纤维具有优异的吸收性能。最小反射损耗 - 11.6 dB的厚度为7.1GHz。同时，碳纤维上的SiC / SiO_2涂层也具有抗氧化性，比裸样品高28％。

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  • 来源
    《Journal of materials science》 |2020年第19期|17067-17074|共8页
  • 作者

    Aiming Bu; Yongfu Zhang; Yan Xiang; Weiwei Chen; Huanwu Cheng; Lu Wang;

  • 作者单位

    Department of Materials Science and Engineering Beijing Institute of Technology Beijing 100081 China;

    Department of Materials Science and Engineering Beijing Institute of Technology Beijing 100081 China;

    Department of Materials Science and Engineering Beijing Institute of Technology Beijing 100081 China;

    Department of Materials Science and Engineering Beijing Institute of Technology Beijing 100081 China;

    Department of Materials Science and Engineering Beijing Institute of Technology Beijing 100081 China;

    Department of Materials Science and Engineering Beijing Institute of Technology Beijing 100081 China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
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