Design and preparation of an epoxy resin matrix composite structure with broadband wave-absorbing properties
Aiming at the poor effect of broadband wave-absorbing, the structural wave-absorbing composites structure were designed and prepared by choosing FeNi alloy powder/epoxy nanocomposites as the wave-absorbing interlayer, and carbon fibers/epoxy composites as the structural materials. Firstly, “80 wt% F...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2024-02-01
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| Series: | Results in Physics |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2211379724000354 |
| _version_ | 1797306963365724160 |
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| author | Hui Zhao Zhenghou Zhu Yuhua Xu Zaiyu Wang Jia Zhou |
| author_facet | Hui Zhao Zhenghou Zhu Yuhua Xu Zaiyu Wang Jia Zhou |
| author_sort | Hui Zhao |
| collection | DOAJ |
| description | Aiming at the poor effect of broadband wave-absorbing, the structural wave-absorbing composites structure were designed and prepared by choosing FeNi alloy powder/epoxy nanocomposites as the wave-absorbing interlayer, and carbon fibers/epoxy composites as the structural materials. Firstly, “80 wt% Fe50Ni50 alloy powder/epoxy resin nanocomposites” were successfully prepared, with a density of about 2.4 g/cm3, which can be applied as wave-absorbing interlayer. Then, electromagnetic parameters and loss mechanisms of the wave-absorbing sandwich in the frequency band of 1–18 GHz were studied in detail. Finally, the radar wave absorption characteristics of the structural wave-absorbing composites were optimized. The study shows that the electromagnetic loss mechanism of wave-absorbing sandwich is dominated by conductive loss and eddy current loss in the frequency range of 1–6 GHz, and eddy current loss, resonant loss and relaxation polarization in the frequency range of 6–18 GHz. In the frequency band of 2.5–8 GHz, the angular tangent of the magnetic loss of the interlayer is tanδm ≥ 0.5, and, the attenuation constant is stabilized in the range of 160–180 in the frequency band of 5.2–13.2 GHz, which shows that the interlayer has a good capacity of electromagnetic wave absorption. Different wave-absorbing properties can be designed by changing the thickness of the wave-absorbing interlayer. And the “fiberglass/interlayer/carbon fiber” composite board with a thickness of 2.0 mm interlayer and 3.0 mm-thick “fiberglass/ epoxy” has excellent broadband wave-absorbing properties. The sandwich composites have wave-absorbing peaks of |RL|≥10 dB in the frequency bands of 4.93–8.79 GHz and 14.96–18.0 GHz, with the peak width of 6.90 GHz, and the absorption peak of |RL|≥54 dB. |
| first_indexed | 2024-03-08T00:50:26Z |
| format | Article |
| id | doaj.art-dc3bc164b6794eeaa09625069b527297 |
| institution | Directory Open Access Journal |
| issn | 2211-3797 |
| language | English |
| last_indexed | 2024-03-08T00:50:26Z |
| publishDate | 2024-02-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Results in Physics |
| spelling | doaj.art-dc3bc164b6794eeaa09625069b5272972024-02-15T05:23:43ZengElsevierResults in Physics2211-37972024-02-0157107353Design and preparation of an epoxy resin matrix composite structure with broadband wave-absorbing propertiesHui Zhao0Zhenghou Zhu1Yuhua Xu2Zaiyu Wang3Jia Zhou4Institute of Space Science and Technology, Nanchang University, Nanchang, Jiangxi 330031, ChinaDepartment of Materials Science and Engineering, School of Physics and Materials, Nanchang University, Nanchang, Jiangxi 330031, ChinaDepartment of Materials Science and Engineering, School of Physics and Materials, Nanchang University, Nanchang, Jiangxi 330031, China; Corresponding authors.Jiangxi Hongdu Aviation Industry Group, Nanchang, Jiangxi, 330096, ChinaInstitute of Space Science and Technology, Nanchang University, Nanchang, Jiangxi 330031, China; Corresponding authors.Aiming at the poor effect of broadband wave-absorbing, the structural wave-absorbing composites structure were designed and prepared by choosing FeNi alloy powder/epoxy nanocomposites as the wave-absorbing interlayer, and carbon fibers/epoxy composites as the structural materials. Firstly, “80 wt% Fe50Ni50 alloy powder/epoxy resin nanocomposites” were successfully prepared, with a density of about 2.4 g/cm3, which can be applied as wave-absorbing interlayer. Then, electromagnetic parameters and loss mechanisms of the wave-absorbing sandwich in the frequency band of 1–18 GHz were studied in detail. Finally, the radar wave absorption characteristics of the structural wave-absorbing composites were optimized. The study shows that the electromagnetic loss mechanism of wave-absorbing sandwich is dominated by conductive loss and eddy current loss in the frequency range of 1–6 GHz, and eddy current loss, resonant loss and relaxation polarization in the frequency range of 6–18 GHz. In the frequency band of 2.5–8 GHz, the angular tangent of the magnetic loss of the interlayer is tanδm ≥ 0.5, and, the attenuation constant is stabilized in the range of 160–180 in the frequency band of 5.2–13.2 GHz, which shows that the interlayer has a good capacity of electromagnetic wave absorption. Different wave-absorbing properties can be designed by changing the thickness of the wave-absorbing interlayer. And the “fiberglass/interlayer/carbon fiber” composite board with a thickness of 2.0 mm interlayer and 3.0 mm-thick “fiberglass/ epoxy” has excellent broadband wave-absorbing properties. The sandwich composites have wave-absorbing peaks of |RL|≥10 dB in the frequency bands of 4.93–8.79 GHz and 14.96–18.0 GHz, with the peak width of 6.90 GHz, and the absorption peak of |RL|≥54 dB.http://www.sciencedirect.com/science/article/pii/S2211379724000354Magnetic nanocompositeFeNi alloy nanopowdersSandwich structureBroadband wave-absorbing properties |
| spellingShingle | Hui Zhao Zhenghou Zhu Yuhua Xu Zaiyu Wang Jia Zhou Design and preparation of an epoxy resin matrix composite structure with broadband wave-absorbing properties Results in Physics Magnetic nanocomposite FeNi alloy nanopowders Sandwich structure Broadband wave-absorbing properties |
| title | Design and preparation of an epoxy resin matrix composite structure with broadband wave-absorbing properties |
| title_full | Design and preparation of an epoxy resin matrix composite structure with broadband wave-absorbing properties |
| title_fullStr | Design and preparation of an epoxy resin matrix composite structure with broadband wave-absorbing properties |
| title_full_unstemmed | Design and preparation of an epoxy resin matrix composite structure with broadband wave-absorbing properties |
| title_short | Design and preparation of an epoxy resin matrix composite structure with broadband wave-absorbing properties |
| title_sort | design and preparation of an epoxy resin matrix composite structure with broadband wave absorbing properties |
| topic | Magnetic nanocomposite FeNi alloy nanopowders Sandwich structure Broadband wave-absorbing properties |
| url | http://www.sciencedirect.com/science/article/pii/S2211379724000354 |
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