Multifunctional SiC@SiO2 Nanofiber Aerogel with Ultrabroadband Electromagnetic Wave Absorption

Limeng Song; Fan Zhang; Yongqiang Chen; Li Guan; Yanqiu Zhu; Mao Chen; Hailong Wang; Budi Riza Putra; Rui Zhang; Bingbing Fan

doi:10.1007/s40820-022-00905-6

Multifunctional SiC@SiO₂ Nanofiber Aerogel with Ultrabroadband Electromagnetic Wave Absorption

Nanomicro Lett. 2022 Jul 28;14(1):152. doi: 10.1007/s40820-022-00905-6.

Authors

Limeng Song¹, Fan Zhang¹, Yongqiang Chen², Li Guan³, Yanqiu Zhu⁴, Mao Chen¹, Hailong Wang¹, Budi Riza Putra⁵, Rui Zhang^{6

7}, Bingbing Fan^{8

9}

Affiliations

¹ School of Materials Science and Engineering, Zhengzhou University, Zhengzhou, 450001, Henan, People's Republic of China.
² School of Materials Science and Engineering, Zhengzhou University, Zhengzhou, 450001, Henan, People's Republic of China. chenyq@zzu.edu.cn.
³ School of Materials Science and Engineering, Zhengzhou University of Aeronautics, Zhengzhou, 450015, Henan, People's Republic of China.
⁴ College of Engineering, Mathematics and Physical Sciences, University of Exeter, Exeter, EX4 4SB, UK.
⁵ Research Center for Metallurgy, National Research and Innovation Agency, South Tangerang, 15315, Banten, Indonesia.
⁶ School of Materials Science and Engineering, Zhengzhou University, Zhengzhou, 450001, Henan, People's Republic of China. zhangray@zzu.edu.cn.
⁷ School of Materials Science and Engineering, Luoyang Institute of Science and Technology, Luoyang, 471023, Henan, People's Republic of China. zhangray@zzu.edu.cn.
⁸ School of Materials Science and Engineering, Zhengzhou University, Zhengzhou, 450001, Henan, People's Republic of China. fanbingbing@zzu.edu.cn.
⁹ State Key Laboratory of Crystal Materials, Shandong University, Jinan, 250100, Shandong, People's Republic of China. fanbingbing@zzu.edu.cn.

Abstract

Traditional ceramic materials are generally brittle and not flexible with high production costs, which seriously hinders their practical applications. Multifunctional nanofiber ceramic aerogels are highly desirable for applications in extreme environments, however, the integration of multiple functions in their preparation is extremely challenging. To tackle these challenges, we fabricated a multifunctional SiC@SiO₂ nanofiber aerogel (SiC@SiO₂ NFA) with a three-dimensional (3D) porous cross-linked structure through a simple chemical vapor deposition method and subsequent heat-treatment process. The as-prepared SiC@SiO₂ NFA exhibits an ultralow density (~ 11 mg cm^{- 3}), ultra-elastic, fatigue-resistant and refractory performance, high temperature thermal stability, thermal insulation properties, and significant strain-dependent piezoresistive sensing behavior. Furthermore, the SiC@SiO₂ NFA shows a superior electromagnetic wave absorption performance with a minimum refection loss (RL_min) value of - 50.36 dB and a maximum effective absorption bandwidth (EAB_max) of 8.6 GHz. The successful preparation of this multifunctional aerogel material provides a promising prospect for the design and fabrication of the cutting-edge ceramic materials.

Keywords: Ceramic materials; Chemical vapor deposition; Electromagnetic wave absorption; Multifunctional; SiC@SiO2 nanofiber aerogel.