Effects of upgrading temperature on electromagnetic shielding properties of three-dimensional graphene/SiBCN/SiC ceramic composites

Chenhao Wang; Yongsheng Liu; Mingxi Zhao; Fang Ye; Laifei Cheng

doi:10.1016/j.ceramint.2019.07.110

Effects of upgrading temperature on electromagnetic shielding properties of three-dimensional graphene/SiBCN/SiC ceramic composites

Chenhao Wang
, Yongsheng Liu
, Mingxi Zhao
, Fang Ye
, Laifei Cheng

School of Materials Sience and Engineering

Northwestern Polytechnical University Xian

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

23 Scopus citations

Abstract

SiC coating is introduced using MTS-H₂-Ar system via chemical vapor deposition technology. SE_R and SE_T of the composites increased from 7.5 dB to 18.9 dB–9.1 dB and 20.8 dB, respectively, due to the deposition of SiC coating. The influence of oxidation temperature on microstructure and electromagnetic interference shielding performance has been systematically investigated. The morphology of GF/SiBCN/SiC composite remained unchanged after oxidation at 900 °C. However, condensed particles which distributed around cauliflower-like structure disappeared and were replaced by some small particles with increasing temperature. The GF/SiBCN/SiC ceramic composites exhibited mass loss after oxidation at 900 °C initially and saw a slight mass gain afterwards. Graphene layers kept their integral structure and SE_T retention rate of 97% and 93% have been recorded after oxidation at 900 °C and 1100 °C for 10 h, respectively.

Original language	English
Pages (from-to)	21278-21285
Number of pages	8
Journal	Ceramics International
Volume	45
Issue number	17
DOIs	https://doi.org/10.1016/j.ceramint.2019.07.110
State	Published - 1 Dec 2019

Keywords

Electromagnetic interference shielding
Oxidation temperature
SiBCN
Silicon carbide (SiC) coating
Three-dimensional graphene foam

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10.1016/j.ceramint.2019.07.110

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title = "Effects of upgrading temperature on electromagnetic shielding properties of three-dimensional graphene/SiBCN/SiC ceramic composites",

abstract = "SiC coating is introduced using MTS-H2-Ar system via chemical vapor deposition technology. SER and SET of the composites increased from 7.5 dB to 18.9 dB–9.1 dB and 20.8 dB, respectively, due to the deposition of SiC coating. The influence of oxidation temperature on microstructure and electromagnetic interference shielding performance has been systematically investigated. The morphology of GF/SiBCN/SiC composite remained unchanged after oxidation at 900 °C. However, condensed particles which distributed around cauliflower-like structure disappeared and were replaced by some small particles with increasing temperature. The GF/SiBCN/SiC ceramic composites exhibited mass loss after oxidation at 900 °C initially and saw a slight mass gain afterwards. Graphene layers kept their integral structure and SET retention rate of 97\% and 93\% have been recorded after oxidation at 900 °C and 1100 °C for 10 h, respectively.",

keywords = "Electromagnetic interference shielding, Oxidation temperature, SiBCN, Silicon carbide (SiC) coating, Three-dimensional graphene foam",

author = "Chenhao Wang and Yongsheng Liu and Mingxi Zhao and Fang Ye and Laifei Cheng",

note = "Publisher Copyright: {\textcopyright} 2019 Elsevier Ltd and Techna Group S.r.l.",

year = "2019",

month = dec,

day = "1",

doi = "10.1016/j.ceramint.2019.07.110",

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TY - JOUR

T1 - Effects of upgrading temperature on electromagnetic shielding properties of three-dimensional graphene/SiBCN/SiC ceramic composites

AU - Wang, Chenhao

AU - Liu, Yongsheng

AU - Zhao, Mingxi

AU - Ye, Fang

AU - Cheng, Laifei

PY - 2019/12/1

Y1 - 2019/12/1

N2 - SiC coating is introduced using MTS-H2-Ar system via chemical vapor deposition technology. SER and SET of the composites increased from 7.5 dB to 18.9 dB–9.1 dB and 20.8 dB, respectively, due to the deposition of SiC coating. The influence of oxidation temperature on microstructure and electromagnetic interference shielding performance has been systematically investigated. The morphology of GF/SiBCN/SiC composite remained unchanged after oxidation at 900 °C. However, condensed particles which distributed around cauliflower-like structure disappeared and were replaced by some small particles with increasing temperature. The GF/SiBCN/SiC ceramic composites exhibited mass loss after oxidation at 900 °C initially and saw a slight mass gain afterwards. Graphene layers kept their integral structure and SET retention rate of 97% and 93% have been recorded after oxidation at 900 °C and 1100 °C for 10 h, respectively.

AB - SiC coating is introduced using MTS-H2-Ar system via chemical vapor deposition technology. SER and SET of the composites increased from 7.5 dB to 18.9 dB–9.1 dB and 20.8 dB, respectively, due to the deposition of SiC coating. The influence of oxidation temperature on microstructure and electromagnetic interference shielding performance has been systematically investigated. The morphology of GF/SiBCN/SiC composite remained unchanged after oxidation at 900 °C. However, condensed particles which distributed around cauliflower-like structure disappeared and were replaced by some small particles with increasing temperature. The GF/SiBCN/SiC ceramic composites exhibited mass loss after oxidation at 900 °C initially and saw a slight mass gain afterwards. Graphene layers kept their integral structure and SET retention rate of 97% and 93% have been recorded after oxidation at 900 °C and 1100 °C for 10 h, respectively.

KW - Electromagnetic interference shielding

KW - Oxidation temperature

KW - SiBCN

KW - Silicon carbide (SiC) coating

KW - Three-dimensional graphene foam

UR - https://www.scopus.com/pages/publications/85069717144

U2 - 10.1016/j.ceramint.2019.07.110

DO - 10.1016/j.ceramint.2019.07.110

M3 - 文章

AN - SCOPUS:85069717144

SN - 0272-8842

VL - 45

SP - 21278

EP - 21285

JO - Ceramics International

JF - Ceramics International

IS - 17

ER -

Effects of upgrading temperature on electromagnetic shielding properties of three-dimensional graphene/SiBCN/SiC ceramic composites

Abstract

Keywords

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