Carbon nanotube sponges filled sandwich panels with superior high-power continuous wave laser resistance

Creators: Yuan, Wu; Xiao, Kailu; Wu, Xianqian; Wang, Jiangtao; Ma, Te; Song, Hongwei; Huang, Chenguang

Abstract

Effect of highly-porous and lightweight carbon nanotube sponges on the high-power continuous wave laser ablation resistance of the sandwich panel was investigated experimentally. As a comparison, thermal responses of monolithic plate, carbon nanotube film filled sandwich panel, unfilled sandwich panel and carbon nanotube sponge filled sandwich panel subjected to continuous wave laser irradiation were analyzed. Experimental results showed that the laser resistance of the carbon nanotube filled sandwich panel is obviously higher than the unfilled structure. The added failure time of the sandwich panel by filling the cores with the carbon nanotube sponge of unit mass was about 18 times and 33 times longer than that by filling with the conventional ablative and insulated material. It could be understood by the high thermal diffusion coefficient and latent heat of sublimation of the carbon nanotube sponge. During ablation by the continuous wave, the carbon nanotube sponge not only fast consumed the absorbed laser energy through phase change of a large-area material due to its high latent heat of sublimation, but also quickly dispersed the heat energy introduced by the continuous wave laser due to its high thermal diffusion coefficient, leading to the extraordinary laser ablation resistance.

Additional Information

© Te Author(s) 2022. This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. Financial supports from National Natural Science Foundation of China (Grant Nos. 11972035, 91016025, 11472276, 11602271, 11332011, 11772347) are gratefully acknowledged. Contributions. W.Y. and K.X. wrote the main manuscript text. X.W. prepared Figs. 1, 2, J.W. and T.M. prepared Figs. 3, 4, 5. All authors reviewed the manuscript. Data availability. The datasets used and/or analysed during the current study available from the corresponding author on reasonable request. The authors declare no competing interests.

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