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Vol. 14 (2022)

Multifunctional SiC@SiO2 Nanofiber Aerogel with Ultrabroadband Electromagnetic Wave Absorption

https://doi.org/10.1007/s40820-022-00905-6
Limeng Song
School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, Henan, People’s Republic of China
Fan Zhang
School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, Henan, People’s Republic of China
Yongqiang Chen
School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, Henan, People’s Republic of China
Li Guan
School of Materials Science and Engineering, Zhengzhou University of Aeronautics, Zhengzhou 450015, Henan, People’s Republic of China
Yanqiu Zhu
College of Engineering, Mathematics and Physical Sciences, University of Exeter, Exeter EX4 4SB, UK
Mao Chen
School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, Henan, People’s Republic of China
Hailong Wang
School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, Henan, People’s Republic of China
Budi Riza Putra
Research Center for Metallurgy, National Research and Innovation Agency, South Tangerang 15315, Banten, Indonesia
Rui Zhang
School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, Henan, People’s Republic of China
Bingbing Fan
School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, Henan, People’s Republic of China

Corresponding Author: Bingbing Fan

fanbingbing@zzu.edu.cn

Nano-Micro Letters, Vol. 14 (2022), Article Number: 152

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 (RLmin) value of − 50.36 dB and a maximum effective absorption bandwidth (EABmax) 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.


Highlights:


1 A multifunctional SiC@SiO2 nanofber aerogel (NFA) was successfully prepared, which exhibits ultra-elastic, fatigue-resistant, high-temperature thermalstability, thermal insulation properties, and signifcant strain-dependent piezoresistive sensing behavior.
2 The SiC@SiO2 NFA shows excellent electromagnetic wave absorption performance with a minimum refection loss value of −50.36 dB and a maximum effective absorption bandwidth of 8.6 GHz.

Keywords

Multifunctional SiC@SiO2 nanofiber aerogel Chemical vapor deposition Electromagnetic wave absorption Ceramic materials
Song, Limeng, Fan Zhang, Yongqiang Chen, Li Guan, Yanqiu Zhu, Mao Chen, Hailong Wang, Budi Riza Putra, Rui Zhang, and Bingbing Fan. 2022. “Multifunctional SiC@SiO2 Nanofiber Aerogel With Ultrabroadband Electromagnetic Wave Absorption”. Nano-Micro Letters 14 (July):152. https://doi.org/10.1007/s40820-022-00905-6.
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