文献类型：期刊文献

英文题名：Multilayer SiC/SiO2 ceramic nanofiber membrane with high reflection and anisotropic thermal conduction for high-energy laser protection

作者：Yang, Xia[1];Ma, Huihuang[1];Liu, Yikun[1];Lin, Qunfang[2];Zhou, Xiaodong[1,3]

机构：[1]East China Univ Sci & Technol, Key Lab Specially Funct Polymer Mat & Related Tech, Shanghai Key Lab Multiphase Mat Chem Engn, Sch Chem Engn,Minist Educ, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Sch Mat Sci & Engn, Shanghai Key Lab Adv Polymer Mat, Shanghai 200237, Peoples R China;[3]East China Univ Sci & Technol, Shanghai Engn Res Ctr Hierarch Nanomat, Shanghai 200237, Peoples R China

年份：2026

卷号：52

期号：14

起止页码：26203

外文期刊名：CERAMICS INTERNATIONAL

收录：;EI(收录号：20261520497584);WOS:【SCI-EXPANDED(收录号:WOS:001780468500001)】；

基金：This work was supported by the National Natural Science Foundation of China (22333002 and 22073028) .

语种：英文

外文关键词：SiC/SiO2 nanofiber membrane; Photothermal co-design; Anisotropic thermal conduction; High-energy laser protection

摘要：Silica (SiO2) nanofiber membranes are promising shields for high-energy lasers due to strong multiple scattering; however, protective performance is often limited by heat accumulation when optical shielding and thermal management cannot be achieved simultaneously. Here, we report a photothermal co-design strategy based on a multilayer SiC/SiO2 ceramic nanofiber membrane constructed by periodic stacking of a repeating SiO2 scattering/SiC-SiO2 thermal-spreading/SiO2 scattering unit. The SiO2 layers provide high reflectivity via multiscale scattering, whereas the interfacial-engineered SiC-SiO2 layer is formed through molecular-scale crosslinking between SiC and SiO2, which establishes continuous in-plane thermal-spreading pathways while maintaining robust interlayer coupling. Consequently, the SiC/SiO2 NFM-7L exhibits an overall reflectivity exceeding 90% at 1080 nm together with pronounced thermal anisotropy. Among the tested configurations, the membrane delivers the best performance: after 120 s of continuous irradiation at 21.9 kW/cm2, it remains structurally intact and limits the rear-surface temperature to below 400 degrees C, effectively protecting the underlying substrate. This work establishes a scalable photothermal architecture that can be extended to other ceramic nanofiber systems, providing a platform for designing multifunctional protective materials under extreme laser-thermal environments.