MXene-Enabled Pneumatic Multiscale Shape Morphing for Adaptive, Programmable and Multimodal Radar-infrared Compatible...

Area of Science:

• Materials Science
• Metamaterials
• Electromagnetic Compatibility

Background:

• Conventional camouflage struggles with dynamic adaptability across radar and infrared spectra due to material limitations.
• Achieving compatible camouflage requires materials that can manipulate electromagnetic wave interactions at different wavelengths.

Purpose of the Study:

• To propose and design a pneumatic multiscale shape morphing system for adaptive radar-infrared camouflage.
• To develop a material system capable of dynamic reconfiguration for enhanced camouflage performance.

Main Methods:

• Designed a periodically arranged pneumatic unit using MXene-based morphable conductors and intake platforms.
• Utilized gas actuation to transform 2D sheets into 3D shapes for microwave absorption and smooth surfaces for reduced IR signatures.
• Employed theory-guided reverse engineering for optimizing the pneumatic matrix design.

Main Results:

• Demonstrated remarkable frequency tunability from 2.64 to 18.0 GHz for microwave absorption.
• Achieved moderate infrared emissivity regulation (0.14 at 7-16.5 µm) and rapid responsiveness (≈30 ms).
• Enabled over 14 programmable coding sequences for independent thermal radiation alteration and multimodal camouflage switching.

Conclusions:

• The pneumatic multiscale shape morphing approach offers a viable solution for dynamic, multispectral camouflage.
• This technology advances electromagnetic functional materials towards adaptability and intelligent camouflage capabilities.