Dielectric and Electromagnetic Wave Absorbing Properties of Two Types of SiC Fibres with Different Compositions

Fang Ye; Litong Zhang; Xiaowei Yin; Yongsheng Liu; Laifei Cheng

doi:10.1016/j.jmst.2012.11.006

Dielectric and Electromagnetic Wave Absorbing Properties of Two Types of SiC Fibres with Different Compositions

Fang Ye, Litong Zhang, Xiaowei Yin, Yongsheng Liu, Laifei Cheng

材料学院

科研成果: 期刊稿件 › 文章 › 同行评审

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摘要

The dielectric and electromagnetic properties of two types of SiC fibres with different compositions were investigated. The permittivity and electromagnetic shielding effectiveness (. SE) of SiC fibre bundles were measured in 8.2-12.4. GHz by waveguide method. The reflection coefficient (. RC) of unidirectional SiC fibre laminates was determined in 8-18. GHz using naval research laboratory (NRL)-arc method. Results showed that the electromagnetic wave (EMW) absorbing properties of SiC fibres were correlated with their composition, microstructure and instinct performance of electrical resistance. SiC fibres with higher content and greater size of nano-scale β-SiC showed higher permittivity, conductivity, SE and lower RC, which resulted in their better EMW absorbing ability, i.e. the lower reflection to EMW.

源语言	英语
页（从-至）	55-58
页数	4
期刊	Journal of Materials Science and Technology
卷	29
期	1
DOI	https://doi.org/10.1016/j.jmst.2012.11.006
出版状态	已出版 - 1月 2013

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title = "Dielectric and Electromagnetic Wave Absorbing Properties of Two Types of SiC Fibres with Different Compositions",

abstract = "The dielectric and electromagnetic properties of two types of SiC fibres with different compositions were investigated. The permittivity and electromagnetic shielding effectiveness (. SE) of SiC fibre bundles were measured in 8.2-12.4. GHz by waveguide method. The reflection coefficient (. RC) of unidirectional SiC fibre laminates was determined in 8-18. GHz using naval research laboratory (NRL)-arc method. Results showed that the electromagnetic wave (EMW) absorbing properties of SiC fibres were correlated with their composition, microstructure and instinct performance of electrical resistance. SiC fibres with higher content and greater size of nano-scale β-SiC showed higher permittivity, conductivity, SE and lower RC, which resulted in their better EMW absorbing ability, i.e. the lower reflection to EMW.",

keywords = "Dielectric, Electrical and magnetic properties, SiC fibre",

author = "Fang Ye and Litong Zhang and Xiaowei Yin and Yongsheng Liu and Laifei Cheng",

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doi = "10.1016/j.jmst.2012.11.006",

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T1 - Dielectric and Electromagnetic Wave Absorbing Properties of Two Types of SiC Fibres with Different Compositions

AU - Ye, Fang

AU - Zhang, Litong

AU - Yin, Xiaowei

AU - Liu, Yongsheng

AU - Cheng, Laifei

PY - 2013/1

Y1 - 2013/1

N2 - The dielectric and electromagnetic properties of two types of SiC fibres with different compositions were investigated. The permittivity and electromagnetic shielding effectiveness (. SE) of SiC fibre bundles were measured in 8.2-12.4. GHz by waveguide method. The reflection coefficient (. RC) of unidirectional SiC fibre laminates was determined in 8-18. GHz using naval research laboratory (NRL)-arc method. Results showed that the electromagnetic wave (EMW) absorbing properties of SiC fibres were correlated with their composition, microstructure and instinct performance of electrical resistance. SiC fibres with higher content and greater size of nano-scale β-SiC showed higher permittivity, conductivity, SE and lower RC, which resulted in their better EMW absorbing ability, i.e. the lower reflection to EMW.

AB - The dielectric and electromagnetic properties of two types of SiC fibres with different compositions were investigated. The permittivity and electromagnetic shielding effectiveness (. SE) of SiC fibre bundles were measured in 8.2-12.4. GHz by waveguide method. The reflection coefficient (. RC) of unidirectional SiC fibre laminates was determined in 8-18. GHz using naval research laboratory (NRL)-arc method. Results showed that the electromagnetic wave (EMW) absorbing properties of SiC fibres were correlated with their composition, microstructure and instinct performance of electrical resistance. SiC fibres with higher content and greater size of nano-scale β-SiC showed higher permittivity, conductivity, SE and lower RC, which resulted in their better EMW absorbing ability, i.e. the lower reflection to EMW.

KW - Dielectric

KW - Electrical and magnetic properties

KW - SiC fibre

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Dielectric and Electromagnetic Wave Absorbing Properties of Two Types of SiC Fibres with Different Compositions

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