Sainan Liu , Yang Hong , Xinzhi Wang , Rui Ke , Songtao Lu , Yang Li , Xiaohong Wu
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引用次数: 0
Abstract
Space stealth strategy is a key means to enhance the survivability of satellites, and its core lies in the realization of multispectral compatible stealth to cope with the complex space reconnaissance environment. In this study, an ultrathin composite coating is proposed, combining metal nanoparticles (NPs) with an infrared-transparent acrylic resin (AR) matrix to achieve visible–infrared compatible stealth performance. It conducts a systematic simulation study on the visible-infrared compatible stealth performance of composite coatings. Based on the Mie scattering theory and Monte Carlo ray tracing method (MCRT), we systematically analyzed the multispectral stealth performance of 11 spherical metal NPs composite coatings (Ti, Cr, Mn, Fe, Cu, Zr, Mo, Ag, Ta, W, Au) with different NPs size (20–100 nm), volume fractions (0.5 %–5 %), and coating thicknesses (0.5–5 μm). The coating's absorption rate in the visible spectrum (380–780 nm) and emissivity in the mid-far infrared window (8–14 μm) were numerically obtained. The results show that when the Ti NPs size is optimized to 50 nm, the volume fraction is optimized to 2 %, and the coating thickness is 1.5 μm, the composite coatings can achieve high visible light absorption of 91.4 % and low infrared emissivity of 0.19. This study not only provides a data-driven strategy for designing visible–infrared compatible stealth coatings but also offers a scalable approach for multispectral optical modulation, with promising applications in stealth technology, thermal management, and solar photothermal conversion.
期刊介绍:
The aim of this international journal is to analyse and publicise the progress and current state of knowledge in the field of organic coatings and related materials. The Editors and the Editorial Board members will solicit both review and research papers from academic and industrial scientists who are actively engaged in research and development or, in the case of review papers, have extensive experience in the subject to be reviewed. Unsolicited manuscripts will be accepted if they meet the journal''s requirements. The journal publishes papers dealing with such subjects as:
• Chemical, physical and technological properties of organic coatings and related materials
• Problems and methods of preparation, manufacture and application of these materials
• Performance, testing and analysis.