Synthesis mechanism of different morphological SiC and its electromagnetic absorption performance

Jinyan Wang; Jiaqi Tao; Jintang Zhou; Harm Van Zalinge; Zhengjun Yao; Li Yang

doi:10.1016/j.matchar.2023.113328

Synthesis mechanism of different morphological SiC and its electromagnetic absorption performance

Jinyan Wang, Jiaqi Tao, Jintang Zhou^*, Harm Van Zalinge, Zhengjun Yao, Li Yang

^*Corresponding author for this work

Department of Chemistry

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

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.

Original language	English
Article number	113328
Journal	Materials Characterization
Volume	205
DOIs	https://doi.org/10.1016/j.matchar.2023.113328
Publication status	Published - Nov 2023

Keywords

Electromagnetic absorbing performance
SiC absorber
Stacking faults
Synthesis mechanism
Waste glass powder

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10.1016/j.matchar.2023.113328

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title = "Synthesis mechanism of different morphological SiC and its electromagnetic absorption performance",

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.",

keywords = "Electromagnetic absorbing performance, SiC absorber, Stacking faults, Synthesis mechanism, Waste glass powder",

author = "Jinyan Wang and Jiaqi Tao and Jintang Zhou and {Van Zalinge}, Harm and Zhengjun Yao and Li Yang",

note = "Publisher Copyright: {\textcopyright} 2023 Elsevier Inc.",

year = "2023",

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doi = "10.1016/j.matchar.2023.113328",

language = "English",

volume = "205",

journal = "Materials Characterization",

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TY - JOUR

T1 - Synthesis mechanism of different morphological SiC and its electromagnetic absorption performance

AU - Wang, Jinyan

AU - Tao, Jiaqi

AU - Zhou, Jintang

AU - Van Zalinge, Harm

AU - Yao, Zhengjun

AU - Yang, Li

PY - 2023/11

Y1 - 2023/11

N2 - 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.

AB - 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.

KW - Electromagnetic absorbing performance

KW - SiC absorber

KW - Stacking faults

KW - Synthesis mechanism

KW - Waste glass powder

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U2 - 10.1016/j.matchar.2023.113328

DO - 10.1016/j.matchar.2023.113328

M3 - Article

AN - SCOPUS:85171474343

SN - 1044-5803

VL - 205

JO - Materials Characterization

JF - Materials Characterization

M1 - 113328

ER -

Synthesis mechanism of different morphological SiC and its electromagnetic absorption performance

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Keywords

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