Zigzag-type metastructures of metallic glass with precisely tunable emissivity for thermal infrared camouflage technology
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View abstract on PubMed
Summary
This summary is machine-generated.Researchers developed a novel zigzag metallic glass film for precise thermal emissivity control. This material offers tunable infrared emission, crucial for energy conservation and thermal camouflage.
Area Of Science
- Materials Science
- Optics
- Nanotechnology
Background
- Precise control of thermal emissivity is critical for energy conservation, heat dissipation, and thermal infrared camouflage.
- Conventional materials with fixed emissivity struggle to adapt to dynamic thermal environments.
Purpose Of The Study
- To introduce a single-layer zigzag metallic glass film for precisely tunable emissivity.
- To demonstrate the potential of this material in advanced thermal management applications.
Main Methods
- Fabrication of a single-layer zigzag metallic glass film using glancing angle deposition.
- Characterization of optical anisotropy and infrared emission properties.
- Evaluation of thermal camouflage performance against natural backgrounds.
Main Results
- The zigzag microstructure induced strong optical anisotropy and anisotropic thermal emission in the infrared region.
- Achieved broad tunability of absorptance/emissivity from 67.3% to 17.2% with ±1% accuracy.
- Demonstrated >97% similarity to natural-background thermal images from 93 °C to 260 °C.
Conclusions
- Zigzag metallic glass films offer a practical platform for precise thermal emissivity control.
- The developed material enables advanced thermal management solutions.
- This technology has significant implications for energy conservation and infrared camouflage.
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