Graphene nanosheet- and flake carbonyl iron particle-filled epoxy-silicone composites as thin-thickness and wide-bandwidth microwave absorber

Yuchang Qing; Dandan Min; Yingying Zhou; Fa Luo; Wancheng Zhou

doi:10.1016/j.carbon.2015.01.002

Graphene nanosheet- and flake carbonyl iron particle-filled epoxy-silicone composites as thin-thickness and wide-bandwidth microwave absorber

Yuchang Qing, Dandan Min, Yingying Zhou, Fa Luo, Wancheng Zhou

School of Materials Sience and Engineering

Northwestern Polytechnical University Xian

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

297 Scopus citations

Abstract

Abstract An epoxy-silicone matrix filled with both graphene nanosheets (GNs) and flake carbonyl iron (FCI) particles was prepared, and the influence of GNs and/or FCI particle content on the electromagnetic and microwave-absorbing properties was investigated in the frequency range of 2-18 GHz. Thin-thickness, broadband absorption microwave absorbers with homogeneously dispersed GNs and FCI particles were obtained. The values and frequency dependencies of the electromagnetic properties of such absorbers can be adjusted by simply changing the content of GNs and/or FCI particles. These changes led to an apparent improvement of impedance matching and then significantly improved the microwave absorptions. Reflection loss values exceeding -6 dB (>74.9% absorption) can be obtained in the frequency range of 5.4-18 GHz with a thickness of 0.9 mm.

Original language	English
Article number	9626
Pages (from-to)	98-107
Number of pages	10
Journal	Carbon
Volume	86
DOIs	https://doi.org/10.1016/j.carbon.2015.01.002
State	Published - 1 May 2015

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10.1016/j.carbon.2015.01.002

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title = "Graphene nanosheet- and flake carbonyl iron particle-filled epoxy-silicone composites as thin-thickness and wide-bandwidth microwave absorber",

abstract = "Abstract An epoxy-silicone matrix filled with both graphene nanosheets (GNs) and flake carbonyl iron (FCI) particles was prepared, and the influence of GNs and/or FCI particle content on the electromagnetic and microwave-absorbing properties was investigated in the frequency range of 2-18 GHz. Thin-thickness, broadband absorption microwave absorbers with homogeneously dispersed GNs and FCI particles were obtained. The values and frequency dependencies of the electromagnetic properties of such absorbers can be adjusted by simply changing the content of GNs and/or FCI particles. These changes led to an apparent improvement of impedance matching and then significantly improved the microwave absorptions. Reflection loss values exceeding -6 dB (>74.9% absorption) can be obtained in the frequency range of 5.4-18 GHz with a thickness of 0.9 mm.",

author = "Yuchang Qing and Dandan Min and Yingying Zhou and Fa Luo and Wancheng Zhou",

year = "2015",

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doi = "10.1016/j.carbon.2015.01.002",

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T1 - Graphene nanosheet- and flake carbonyl iron particle-filled epoxy-silicone composites as thin-thickness and wide-bandwidth microwave absorber

AU - Qing, Yuchang

AU - Min, Dandan

AU - Zhou, Yingying

AU - Luo, Fa

AU - Zhou, Wancheng

PY - 2015/5/1

Y1 - 2015/5/1

N2 - Abstract An epoxy-silicone matrix filled with both graphene nanosheets (GNs) and flake carbonyl iron (FCI) particles was prepared, and the influence of GNs and/or FCI particle content on the electromagnetic and microwave-absorbing properties was investigated in the frequency range of 2-18 GHz. Thin-thickness, broadband absorption microwave absorbers with homogeneously dispersed GNs and FCI particles were obtained. The values and frequency dependencies of the electromagnetic properties of such absorbers can be adjusted by simply changing the content of GNs and/or FCI particles. These changes led to an apparent improvement of impedance matching and then significantly improved the microwave absorptions. Reflection loss values exceeding -6 dB (>74.9% absorption) can be obtained in the frequency range of 5.4-18 GHz with a thickness of 0.9 mm.

AB - Abstract An epoxy-silicone matrix filled with both graphene nanosheets (GNs) and flake carbonyl iron (FCI) particles was prepared, and the influence of GNs and/or FCI particle content on the electromagnetic and microwave-absorbing properties was investigated in the frequency range of 2-18 GHz. Thin-thickness, broadband absorption microwave absorbers with homogeneously dispersed GNs and FCI particles were obtained. The values and frequency dependencies of the electromagnetic properties of such absorbers can be adjusted by simply changing the content of GNs and/or FCI particles. These changes led to an apparent improvement of impedance matching and then significantly improved the microwave absorptions. Reflection loss values exceeding -6 dB (>74.9% absorption) can be obtained in the frequency range of 5.4-18 GHz with a thickness of 0.9 mm.

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U2 - 10.1016/j.carbon.2015.01.002

DO - 10.1016/j.carbon.2015.01.002

M3 - 文章

AN - SCOPUS:84924560103

SN - 0008-6223

VL - 86

SP - 98

EP - 107

JO - Carbon

JF - Carbon

M1 - 9626

ER -

Graphene nanosheet- and flake carbonyl iron particle-filled epoxy-silicone composites as thin-thickness and wide-bandwidth microwave absorber

Abstract

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