Reflection and thermal characteristics of a novel reflective phase-change coating irradiated by high-power continuous laser

Yang, Zhen; Zhang, Lili; Zhang, Yong; Guo, Xuguang; Chen, Kaifeng; Lu, Keyu; Zhang, Jianlong

doi:10.1016/j.ceramint.2021.12.360

Cited by 5 publications

(1 citation statement)

References 26 publications

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“…We also compare the high-energy laser protection performance of QRSA-L with the composite materials reported in the literature (Figure c). ,− ,,− The resin-based materials are ablated by the laser with a lower power density. The ceramic-based materials are destroyed in an extremely short irradiation time of the laser.…”

Section: Results and Discussionmentioning

confidence: 99%

High-Energy Laser Protection Performance of Fibrous Felt-Reinforced Aerogels with Hierarchical Porous Architectures

Ma,

Liu,

et al. 2024

ACS Appl. Mater. Interfaces

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Continuous-wave lasers can cause irreversible damage to structured materials in a very short time. Modern high-energy laser protection materials are mainly constructed from ceramic, polymer, and metal constitutions. However, these materials are protected by sacrificing their structural integrity under the irradiation of high-energy lasers. In this contribution, we reported multilayer fibrous felt-reinforced aerogels that can sustain the continuous irradiation of a laser at a power density of 120 MW•m −2 without structural damage. It is found that the exceptional high-energy laser protection performance and the comparable mechanical properties of aerogel nanocomposites are attributed to the unique characteristics of hierarchical porous architectures. In comparison with various preparation methods and other aerogel materials, multilayer fibrous felt-reinforced aerogels exhibit the best performance in highenergy laser protection, arising from the gradual interception and the Raman−Rayleigh scattering cycles of a high-energy laser in the porous aerogels. Furthermore, a near-zero thermal expansion coefficient and extremely low thermal conductivity at high temperature allow the lightweight felt-reinforced aerogels to be applied in extreme conditions. The felt-reinforced aerogels reported herein offer an attractive material that can withstand complex thermomechanical stress and retain excellent insulation properties at extremely high temperature.

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