Graphene-like MXene-based microwave absorbers and shields: Latest progress and perspectives

Materials Today Physics, Год журнала: 2024, Номер 43, С. 101400 - 101400

Опубликована: Март 26, 2024

Язык: Английский

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Ultralight Three‐Layer Gradient‐Structured MXene/ Reduced Graphene Oxide Composite Aerogels with Broadband Microwave Absorption and Dynamic Infrared Camouflage

Small, Год журнала: 2024, Номер unknown

Опубликована: Май 2, 2024

Abstract Infrared and radar detectors posed substantial challenges to weapon equipment personnel due their continuous surveillance reconnaissance capabilities. Traditional single‐band stealth devices are insufficient for dual‐band detection in both infrared microwave bands. To overcome this limitation, a gradient‐structured MXene/reduced graphene oxide (rGO) composite aerogel (GMXrGA) is fabricated through two‐step bidirectional freeze casting process, followed by freeze‐drying thermal annealing. GMXrGA exhibits distinct three‐layered structure, with each layer playing crucial role absorption. This deliberate design amplifies the efficiency of absorption material's effectiveness dynamic camouflage. displays an ultralow density 5.2 mg∙cm −3 demonstrates exceptional resistance compression, enduring 200 cycles at maximum strain 80%. Moreover, it shows superior performance, minimum reflection loss ( RL min ) –60.1 dB broad effective bandwidth EAB 14.1 GHz (3.9–18.0 GHz). Additionally, low conductivity (≈26 mW∙m −1 ∙K camouflage capabilities within temperature range 50–120 °C, achieving rapid concealment 30 s. Consequently, they hold great potential diverse applications, including intelligent buildings, wearable electronics, equipment.

Язык: Английский

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The Optimized Design of Sandwich Structured SiO₂/C@SiC/SiO₂ Composites Through Numerical Simulation for Temperature‐Resistant Radar and Infrared Compatible Stealth

Advanced Functional Materials, Год журнала: 2024, Номер unknown

Опубликована: Дек. 12, 2024

Abstract In contemporary times, radar and infrared‐compatible stealth materials have emerged as a pivotal domain of research globally, aimed at augmenting the survivability military assets. However, current candidates generally exhibit subpar compatibility performance in elevated temperature environments due to imbalanced interplay between two spectral bands. this work, meticulously designed sandwich‐structure SiO 2 /C@SiC/SiO composite is proposed cope with challenge. The middle layer C@SiC composites possesses excellent microwave absorption even high temperatures. outer layers aerogels serve not only inhibit infrared radiation intensity, but also reinforce capacity by optimizing impedance matching reducing heat transferred layer. Based on numerical simulation outcomes, thickness each has been optimized attain harmonious balance properties. Ultimately, sandwich structured demonstrate low RL (reflection loss) values (←5 dB) across nearly entire X band (8–12 GHz), alongside minimal surface temperatures hovering ≈44 °C an ambient 200 °C. comprehensive investigation into impact patterns underlying mechanisms offers invaluable insights develop for high‐temperature applications, which can be applied coatings skin Mach number aircraft.

Язык: Английский

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Recent progress on MXene-based advanced nanocomposite materials for thermal radiation protection and fire safety

Advanced Nanocomposites, Год журнала: 2024, Номер 1(1), С. 217 - 239

Опубликована: Янв. 1, 2024

As a member of the two-dimensional materials' family, MXene sheets exhibit unique structure and outstanding functional properties, garnering extensive interest in many emerging fields. Among them, derivatives with low emissivity inorganic feature have positioned them as promising candidates for thermal camouflage fire safety. Nevertheless, present literature still lacks comprehensive comparative review focused on both radiation protection safety advanced MXene-based nanocomposite materials. This paper is dedicated to offering an overview recent advances progress empowering nanocomposites context synthesis operational principle, structural characteristics, multifunctional performance emergent applications. Special emphasis placed reviewing camouflaging (infrared stealth), flame-retardant (passive) early warning (active) understand relationships between material compositions, fabricating process, multi-scale structures multiple functionalities. Finally, future challenge direction applications are discussed analyzed.

Язык: Английский

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Camel skin-fat structure inspired MXene@PVA/PCC aerogel composite for efficient medium and low temperature infrared stealth

Chemical Engineering Journal, Год журнала: 2023, Номер 476, С. 146671 - 146671

Опубликована: Окт. 15, 2023

Язык: Английский

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Bio-inspired flexible versatile textiles for excellent absorption-dominated electromagnetic interference shielding, thermal management, and strain sensing

Chemical Engineering Journal, Год журнала: 2023, Номер 477, С. 147116 - 147116

Опубликована: Ноя. 4, 2023

Язык: Английский

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3D Honeycomb Fe/MXene Derived from Prussian Blue Microcubes with a Tunable Structure for Efficient Low-Frequency and Flexible Electromagnetic Absorbers

ACS Applied Materials & Interfaces, Год журнала: 2023, Номер 15(41), С. 48519 - 48528

Опубликована: Окт. 6, 2023

The unique layered structure and high conductivity of MXene materials make them highly promising for microwave absorption. However, the finite loss mechanism severe agglomeration present challenging obstacles ideal absorbers, which could be effectively improved by constructing a three-dimensional (3D) porous structure. This study reports 3D honeycomb using straightforward template method. framework offers ample cavities to anchor Prussian blue microcubes their derivatives including Fe microboxes clusters simple annealing process. Based on superiority architecture magnetic-dielectric synergistic effects, Fe/MXene absorbers demonstrate outstanding absorption capabilities with optimum reflection value -40.3 dB at 2.00 mm in low-frequency range from 4.2 5.6 GHz. absorber also manifests superior radar wave attenuation element analysis exhibits great potential flexible thermal insulation material wide temperatures. work proposes useful reference design MXene-based architectures, strategy further expands enabling used as efficient absorbers.

Язык: Английский

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All-in-one integrated flexible PE@PET/MXene films for high-performance electromagnetic shields with self-reinforced conductivity and mechanical properties

Carbon, Год журнала: 2023, Номер 216, С. 118595 - 118595

Опубликована: Ноя. 3, 2023

Язык: Английский

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Novel ceramic matrix metastructure for high-temperature radar-infrared compatible stealth: Structure-function design and manufacture

Composites Part A Applied Science and Manufacturing, Год журнала: 2024, Номер 179, С. 108030 - 108030

Опубликована: Янв. 16, 2024

Язык: Английский

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Graphite Wrapped FeNi3/Co with Carbon Nanotubes Anchored on MgO@Carbon Fiber Reinforcements via Continuous Fabrication for High-Efficiency Microwave Attenuation

Advanced Fiber Materials, Год журнала: 2024, Номер 6(5), С. 1640 - 1656

Опубликована: Июнь 21, 2024

Язык: Английский

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