Achieving good infrared-radar compatible stealth property on metamaterial-based absorber by controlling the floating rate of Al type infrared coating

Shi, Mengyu; Xu, Chunjian; Yang, Zhihong; Liang, Juan; Wang, Lei; Tan, Shujuan; Xu, Guoyue

doi:10.1016/j.jallcom.2018.06.093

Cited by 57 publications

(20 citation statements)

References 31 publications

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“…Generally, low infrared emissivity fillers mainly include metals, conjugated polymers, and semiconductors. The infrared emissivity of flaky aluminum and bronze is as low as 0.1–0.3, [ 9 ] but would increase intensely once metals are oxidized with long‐time exposure to air. What's worse, due to the high electrical conductivity, metals show a full‐waveband ultrahigh reflectivity, [ 10 ] thus leading to a high visible‐light glossiness and a big radar cross section (RCS).…”

Section: Introductionmentioning

confidence: 99%

Combined Experimental and DFT Study on 2D MoSe₂ toward Low Infrared Emissivity

Tong

Zhou

et al. 2022

Adv Funct Materials

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Low infrared emissivity materials play a key role in thermal camouflage or retardation. Among these, fillers can be easily shaped into various flexible forms and normally provide an omnidirectional and polarization-insensitive emissivity. However, conventional fillers suffer from drawbacks of full-waveband ultrahigh reflectivity, unsatisfactory thermal camouflage performances, or poor chemical/thermal stabilities. Herein, 2D MoSe 2 is discovered as a new semiconductor with intrinsic low infrared emissivity after first-principle density functional theory calculation and experimental demonstration on eight types of two-dimensional materials (2DMs). Mechanisms of electron-photon reflection and phonon-photon absorption for the low infrared emissivity are proposed. A two-step microwave-assisted amination process is developed to exfoliate the nanosheets and obtain a desired low infrared emissivity. The as-obtained chitosan modified MoSe 2 (CS@MoSe 2 ) has an ultrahigh spectral reflectivity of 78%-86% in 8-14 µm, and its resin-based coating still exhibits a low infrared emissivity of 0.32 and shows a dramatic reduction in radiation temperature of 28 °C for a hot object at 70 °C. Besides, CS@MoSe 2 can endure a high temperature of 220 °C and is demonstrated with a long-term thermal camouflage efficiency in hot environments. This work will guide 2DMs selection and preparation toward desired infrared radiation properties to satisfy numerous applications.

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Section: Introductionmentioning

confidence: 99%

Combined Experimental and DFT Study on 2D MoSe₂ toward Low Infrared Emissivity

Tong

Zhou

et al. 2022

Adv Funct Materials

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“…The effective macroscopic properties are achieved by inclusion or adding in homogeneities named “meta-atoms.” The properties include artificial plasmas, double negative, permeability negative, negative index media, to name a few. These characteristics find their applications in many areas, such as enhancing the performance of antenna 1 , reduction of specific absorption rate(SAR) 2 , filter design 3 , absorber 4 , sensing and detection 5 , energy harvesting 6 , super lensing 7 and so on. The applications are also extended in large fields such as acoustic, optics, microwave, mechanical, electronics, chemical, biological 8 – 11 .…”

Section: Introductionmentioning

confidence: 99%

Inductively tuned modified split ring resonator based quad band epsilon negative (ENG) with near zero index (NZI) metamaterial for multiband antenna performance enhancement

Moniruzzaman

Islam

Misran

et al. 2021

Sci Rep

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An inductively tuned modified split-ring resonator-based metamaterial (MTM) is presented in this article that provides multiple resonances covering S, C, X, and Ku-bands. The MTM is designed on an FR-4 substrate with a thickness of 1.5 mm and an electrical dimension of 0.063λ × 0.063λ where wavelength, λ is calculated at 2.38 GHz. The resonator part is a combination of three squared copper rings and one circular ring in which all the square rings are modified shaped, and the inner two rings are interconnected. The resonance frequency is tuned by adding inductive metal strips in parallel two vertical splits of the outer ring that causes a significant shift of resonances towards the lower frequencies and a highly effective medium ratio (EMR) of 15.75. Numerical simulation software CST microwave studio is used for the simulation and performance analysis of the proposed unit cell. The MTM unit cell exhibits six resonances of transmission coefficient (S21) at 2.38, 4.24, 5.98, 9.55, 12.1, and 14.34 GHz covering S, C, X, and Ku-bands with epsilon negative (ENG), near-zero permeability, and near-zero refractive index (NZI). The simulated result is validated by experiment with good agreement between them. The performance of the array of the unit cells is also investigated in both simulation and measurement. The equivalent circuit modeling has been accomplished using Advanced Design Software (ADS) that shows a similar S21 response compared to CST simulation. Noteworthy to mention that with the copper backplane, the same unit cell provides multiband absorption properties with four major absorption peaks of 99.6%, 95.7%, 99.9%, 92.7% with quality factors(Q-factor) of 28.4, 34.4, 23, and 32 at 3.98, 5.5, 11.73 and 13.47 GHz, respectively which can be applied for sensing and detecting purposes. The application of an array of the unit cells is investigated using it as a superstrate of an antenna that provides a 73% (average) increase of antenna gain. Due to its simple design, compact dimension with high EMR, ENG property with near-zero permeability, this multiband NZI metamaterial can be used for microwave applications, especially for multiband antenna gain enhancement.

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“…Aluminum is the most widely used because of its low cost, easy access, and good performance. Shi et al investigated the influences of the floating rate of Al particles on the infrared emissivity [3].…”

Section: Introductionmentioning

confidence: 99%

Effect of Black Paste on the Property of Fluorine Resin/Aluminum Infrared Coating

Yan

2019

Coatings

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A fluorine resin/aluminum infrared coating was prepared with aluminum using black paste as filler and fluorine resin as binder. The effect of the black paste content on the performance of gloss, color difference, infrared emissivity, hardness, adhesion, impact resistance, roughness, optical testing, and corrosion resistance of the fluorine resin/aluminum infrared coating were examined. When the content of black paste was increased from 1.0% to 9.0%, the gloss of the coating surface decreased; the ΔE* value of the coating decreased; the infrared emissivity of the coating surface increased gradually; the hardness of the coating was 6H; the adhesion grade of the coating was 0; the infrared absorption peak increased gradually. When the content of black paste was 0%–3.0%, the impact resistance was more than 50 kg∙cm, and the impact resistance was higher. When the content of black paste was 0%–5.0%, the surface roughness of the coating was relatively low. When the content of black paste was 1.0%, the corrosion resistance of the coating was the best. The results showed that when the content of black paste was 1.0%, the performance of the whole fluorine resin coating was the best. Through the preparation and characterization of fluorine resin infrared low-emissivity coatings, the possibility of applying fluorine resin to infrared low-emissivity anticorrosive coatings was discussed, which laid a foundation for the subsequent engineering application of coatings.

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Achieving good infrared-radar compatible stealth property on metamaterial-based absorber by controlling the floating rate of Al type infrared coating

Cited by 57 publications

References 31 publications

Combined Experimental and DFT Study on 2D MoSe₂ toward Low Infrared Emissivity

Combined Experimental and DFT Study on 2D MoSe₂ toward Low Infrared Emissivity

Inductively tuned modified split ring resonator based quad band epsilon negative (ENG) with near zero index (NZI) metamaterial for multiband antenna performance enhancement

Effect of Black Paste on the Property of Fluorine Resin/Aluminum Infrared Coating

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Achieving good infrared-radar compatible stealth property on metamaterial-based absorber by controlling the floating rate of Al type infrared coating

Cited by 57 publications

References 31 publications

Combined Experimental and DFT Study on 2D MoSe2 toward Low Infrared Emissivity

Combined Experimental and DFT Study on 2D MoSe2 toward Low Infrared Emissivity

Inductively tuned modified split ring resonator based quad band epsilon negative (ENG) with near zero index (NZI) metamaterial for multiband antenna performance enhancement

Effect of Black Paste on the Property of Fluorine Resin/Aluminum Infrared Coating

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Combined Experimental and DFT Study on 2D MoSe₂ toward Low Infrared Emissivity

Combined Experimental and DFT Study on 2D MoSe₂ toward Low Infrared Emissivity