Microwave absorbing and infrared radiation properties of Al@multi-walled carbon nanotubes composites

Liu, Qingping; Xing, Honglong; Wang, Huan; Ji, Xiaoli

doi:10.1007/s10854-019-02342-5

Cited by 10 publications

(3 citation statements)

References 39 publications

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“…For conventional IR camouflage coatings primarily composed of metallic microparticles, both the high glossiness and high brightness limit their compatibility with Vis light and NIR lasers. 51 Here, the good Vis-NIR absorption characteristics of SiOC and MXene endow the prepared structures with correspondingly good Vis-NIR absorption characteristics. Furthermore, the micron-scale curved surface and the high surface area of the porous GGS structure promote the occurrence of more scattering events and reflections of the incident Vis-NIR light, which further enhance the Vis-1.06 μm-laser camouflage performance.…”

Section: Resultsmentioning

confidence: 79%

Wide-temperature-range multispectral camouflage enabled by orientation-gradient co-optimized microwave blackbody metastructure coupled with conformal MXene coating

Li¹,

Pan²,

Zhou³

et al. 2023

Mater. Horiz.

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Section: Resultsmentioning

confidence: 79%

Wide-temperature-range multispectral camouflage enabled by orientation-gradient co-optimized microwave blackbody metastructure coupled with conformal MXene coating

Li¹,

Pan²,

Zhou³

et al. 2023

Mater. Horiz.

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“…Al/MWCNT (multi‐walled carbon nanotube) composites exhibit good IR shielding/radar absorption compatibility. [ 26 ] Al sheets intersecting between multi‐walled carbon nanotubes can create cavities and induce resonance effects. Molecular polarization, dipole polarization, and interfacial polarization are also promoted.…”

Section: Introductionmentioning

confidence: 99%

Double‐Layer Structural Compatible Protective Material with Excellent Microwave Absorption and Heat Shielding Performance

Wang

Pang

Líu

et al. 2022

Adv Materials Inter

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In view of the practical demands and mechanistic conflicts between microwave absorption and heat shielding compatibility, a double‐layer composite coating based on moth‐eyed hexagonal anti‐reflective structure is prepared by combining the advantages of metamaterials and coatings. The hexagonal periodic sequential configuration of the upper infrared shield layer (IRSL) can break the continuity of the electric field, induce a networked concentration of the surface current and internal electric field of the microwave absorption layer, thus optimizing the impedance matching and counteract the attenuated absorption performance due to the high dielectric IRSL. In addition, the emissivity of IRSL can be tuned artificially by changing the filler composition and particle size. The structural double‐layer composite coatings have a maximum effective absorption (reflection loss←10 dB) bandwidth of 7.4 GHz in the SKu bands at deep subwavelength thickness, while the infrared emissivity is 0.292. This work provides a novel approach for multispectral modulation in the field of advanced compatible protection systems.

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“…At present, scientists have proposed numerous ways to integrate infrared and radar stealth on the same object. [21,22] Traditional compatible methods such as composite and surface modification of materials, [23] nanomaterials, [24,25] conductive polymers, [15,26,27] and doped oxide semiconductors [28] will reduce the materials' absorbing performance while achieving lower emissivity and cannot break through the limitation of the opposite stealth mechanism. However, structural-level innovation can pave the way for functional integration and combining conflicting functions into a single structure.…”

Section: Introductionmentioning

confidence: 99%

Metasurface‐Based Hierarchical Structures: Excellent Electromagnetic Wave Absorbers with Low‐Infrared Emissivity Layer

et al. 2022

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Derived from the increasing demand for radar and infrared camouflage integration, a two‐layer hierarchical structure that combines coating and a square patch‐based metasurface is designed. Under deep subwavelength thickness, the infrared stealth layer (IRSL) can markedly reinforce microwave absorption layer (MAL) performance. More than 90% of the electromagnetic wave energy in the 3.7–5.1 GHz and 12.8–18 GHz bands can be absorbed. The hierarchical structure expands the effective absorption bandwidth of the exposed coatings from 0 to 6.6 GHz, and the maximum reflection loss increases from −8 to −40 dB. Moreover, the emissivity in the midinfrared range is maintained at an extremely low value of 0.281. The delay of magnetic resonance is found in the simulation model, indicating that strong magnetic resonance is formed in coatings after covering the IRSL. Meanwhile, the absorption peaks of the coatings are controlled by low‐pass filter metasurfaces. These two factors contribute to the enhancement effect of IRSL on MAL and break the boundary between radar and infrared stealth. Herein, an original solution for tuning multispectral electromagnetic (EM) waves is provided and it has broad application prospects in advanced compatible camouflage material.

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Microwave absorbing and infrared radiation properties of Al@multi-walled carbon nanotubes composites

Cited by 10 publications

References 39 publications

Wide-temperature-range multispectral camouflage enabled by orientation-gradient co-optimized microwave blackbody metastructure coupled with conformal MXene coating

Wide-temperature-range multispectral camouflage enabled by orientation-gradient co-optimized microwave blackbody metastructure coupled with conformal MXene coating

Double‐Layer Structural Compatible Protective Material with Excellent Microwave Absorption and Heat Shielding Performance

Metasurface‐Based Hierarchical Structures: Excellent Electromagnetic Wave Absorbers with Low‐Infrared Emissivity Layer

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