Synthesis mechanism of different morphological SiC and its electromagnetic absorption performance

Wang, Jinyan, Tao, Jiaqi, Zhou, Jintang, Van Zalinge, Harm ORCID: 0000-0003-0996-1281, Yao, Zhengjun and Yang, Li (2023) Synthesis mechanism of different morphological SiC and its electromagnetic absorption performance. Materials Characterization, 205. p. 113328.

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Abstract

This article presents a facile synthesis of different morphological silicon carbides (SiC) absorbers by adjusting the weight ratio of carbon spheres to waste glass powder. With the decreased proportion of waste glass powder, the diffusion rate of SiO vapour decreases, which is lower than the deposition rate, leading to the morphology change from fluffy spheres to nanofibers. The electromagnetic wave (EMW) absorbing results show that the fluffy spherical SiC possesses the optimal EMW absorption performance with an effective absorption bandwidth 4.81 GHz at 1.6 mm, mainly due to stacking faults-induced polarisation loss and conductive loss. By comparison, the EMW absorbing ability of SiC obtained through wasted glass powder is better than the normal SiC prepared through commercial SiO2. Thus, the waste glass has shown great promise as silicon resources to prepare high-performance SiC absorbers.

Item Type:	Article
Divisions:	Faculty of Science and Engineering > School of Electrical Engineering, Electronics and Computer Science
Depositing User:	Symplectic Admin
Date Deposited:	20 Sep 2023 08:22
Last Modified:	28 Sep 2023 05:26
DOI:	10.1016/j.matchar.2023.113328
Related URLs:	Publisher
URI:	https://livrepository.liverpool.ac.uk/id/eprint/3172895