Temperature dependent microwave attenuation behavior for carbon-nanotube/silica composites

Bo Wen; Mao Sheng Cao; Zhi Ling Hou; Wei Li Song; Lu Zhang; Ming Ming Lu; Hai Bo Jin; Xiao Yong Fang; Wen Zhong Wang; Jie Yuan

doi:10.1016/j.carbon.2013.07.110

Temperature dependent microwave attenuation behavior for carbon-nanotube/silica composites

Bo Wen, Mao Sheng Cao^*, Zhi Ling Hou, Wei Li Song, Lu Zhang, Ming Ming Lu, Hai Bo Jin, Xiao Yong Fang, Wen Zhong Wang, Jie Yuan

^*Corresponding author for this work

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

1082 Citations (Scopus)

Abstract

SiO₂-matrix composites filled with 2, 5 and 10 wt.% multiwalled carbon nanotubes (MWCNTs) were prepared to evaluate the dielectric properties and microwave attenuation performances over the full X-Band (8.2-12.4 GHz) at a wide temperature ranging from 100 to 500 C. On the basis of the conductivity induced by the structure of the MWCNT, the transport of migrating and hopping electrons in the MWCNT micro-current network has been discussed, and the effects of MWCNT content and temperature on the electronic transport and conductivity have been investigated. These effects also have great influences on the dielectric properties, electromagnetic wave propagating and microwave attenuation performances of the composites. The behavior of electromagnetic interference (EMI) shielding and microwave absorption provide the technical direction for the design of microwave attenuation materials and also indicate that CNT-based composites could be promising candidates for microwave attenuation application.

Original language	English
Pages (from-to)	124-139
Number of pages	16
Journal	Carbon
Volume	65
DOIs	https://doi.org/10.1016/j.carbon.2013.07.110
Publication status	Published - Dec 2013

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title = "Temperature dependent microwave attenuation behavior for carbon-nanotube/silica composites",

abstract = "SiO2-matrix composites filled with 2, 5 and 10 wt.% multiwalled carbon nanotubes (MWCNTs) were prepared to evaluate the dielectric properties and microwave attenuation performances over the full X-Band (8.2-12.4 GHz) at a wide temperature ranging from 100 to 500 C. On the basis of the conductivity induced by the structure of the MWCNT, the transport of migrating and hopping electrons in the MWCNT micro-current network has been discussed, and the effects of MWCNT content and temperature on the electronic transport and conductivity have been investigated. These effects also have great influences on the dielectric properties, electromagnetic wave propagating and microwave attenuation performances of the composites. The behavior of electromagnetic interference (EMI) shielding and microwave absorption provide the technical direction for the design of microwave attenuation materials and also indicate that CNT-based composites could be promising candidates for microwave attenuation application.",

author = "Bo Wen and Cao, {Mao Sheng} and Hou, {Zhi Ling} and Song, {Wei Li} and Lu Zhang and Lu, {Ming Ming} and Jin, {Hai Bo} and Fang, {Xiao Yong} and Wang, {Wen Zhong} and Jie Yuan",

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doi = "10.1016/j.carbon.2013.07.110",

language = "English",

volume = "65",

pages = "124--139",

journal = "Carbon",

issn = "0008-6223",

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T1 - Temperature dependent microwave attenuation behavior for carbon-nanotube/silica composites

AU - Wen, Bo

AU - Cao, Mao Sheng

AU - Hou, Zhi Ling

AU - Song, Wei Li

AU - Zhang, Lu

AU - Lu, Ming Ming

AU - Jin, Hai Bo

AU - Fang, Xiao Yong

AU - Wang, Wen Zhong

AU - Yuan, Jie

PY - 2013/12

Y1 - 2013/12

N2 - SiO2-matrix composites filled with 2, 5 and 10 wt.% multiwalled carbon nanotubes (MWCNTs) were prepared to evaluate the dielectric properties and microwave attenuation performances over the full X-Band (8.2-12.4 GHz) at a wide temperature ranging from 100 to 500 C. On the basis of the conductivity induced by the structure of the MWCNT, the transport of migrating and hopping electrons in the MWCNT micro-current network has been discussed, and the effects of MWCNT content and temperature on the electronic transport and conductivity have been investigated. These effects also have great influences on the dielectric properties, electromagnetic wave propagating and microwave attenuation performances of the composites. The behavior of electromagnetic interference (EMI) shielding and microwave absorption provide the technical direction for the design of microwave attenuation materials and also indicate that CNT-based composites could be promising candidates for microwave attenuation application.

AB - SiO2-matrix composites filled with 2, 5 and 10 wt.% multiwalled carbon nanotubes (MWCNTs) were prepared to evaluate the dielectric properties and microwave attenuation performances over the full X-Band (8.2-12.4 GHz) at a wide temperature ranging from 100 to 500 C. On the basis of the conductivity induced by the structure of the MWCNT, the transport of migrating and hopping electrons in the MWCNT micro-current network has been discussed, and the effects of MWCNT content and temperature on the electronic transport and conductivity have been investigated. These effects also have great influences on the dielectric properties, electromagnetic wave propagating and microwave attenuation performances of the composites. The behavior of electromagnetic interference (EMI) shielding and microwave absorption provide the technical direction for the design of microwave attenuation materials and also indicate that CNT-based composites could be promising candidates for microwave attenuation application.

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U2 - 10.1016/j.carbon.2013.07.110

DO - 10.1016/j.carbon.2013.07.110

M3 - Article

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SN - 0008-6223

VL - 65

SP - 124

EP - 139

JO - Carbon

JF - Carbon

ER -

Temperature dependent microwave attenuation behavior for carbon-nanotube/silica composites

Abstract

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