Flexible, hydrophobic SiC ceramic nanofibers used as high frequency electromagnetic wave absorbers

Peng Wang; Laifei Cheng; Yani Zhang; Heng Wu; Yi Hou; Wenyu Yuan; Lianxi Zheng

doi:10.1016/j.ceramint.2017.03.001

Flexible, hydrophobic SiC ceramic nanofibers used as high frequency electromagnetic wave absorbers

Peng Wang, Laifei Cheng, Yani Zhang, Heng Wu, Yi Hou, Wenyu Yuan, Lianxi Zheng

Mechanical & Nuclear Engineering

Northwestern Polytechnical University

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

83 Scopus citations

Abstract

In this paper, flexible hydrophobic SiC ceramic nanofibers have been successfully fabricated via electrospinning and subsequent high temperature heat treatment. The synthesized SiC ceramic nanofibers show excellent flexibility without any breakage even under a bending angle of 142.6°, and high hydrophobicity with a water contact angle of 149.05°. The SiC nanofibers exhibit excellent electromagnetic (EM) wave absorption properties with an effective absorption bandwidth (reflection loss (RL) <−10 dB, 90% EM wave absorbed) of 4–18 GHz. The maximum reflection loss of SiC ceramic nanofibers reaches −19.4 dB at 5.84 GHz. In addition, the nanofibers are environmentally stable in 2 mol/L NaOH solution for 2 h and high temperature of 500 °C in air atmosphere. The excellent EM wave absorption performance, flexibility, hydrophobic properties, corrosion resistant properties in alkali environment and high temperature stability make SiC ceramic nanofibers to be a potential candidate for EM wave absorption used in harsh environment.

Original language	British English
Pages (from-to)	7424-7435
Number of pages	12
Journal	Ceramics International
Volume	43
Issue number	10
DOIs	https://doi.org/10.1016/j.ceramint.2017.03.001
State	Published - 1 Jul 2017

Keywords

Electromagnetic properties
Flexibility
Hydrophobic
SiC nanofibers

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10.1016/j.ceramint.2017.03.001

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title = "Flexible, hydrophobic SiC ceramic nanofibers used as high frequency electromagnetic wave absorbers",

abstract = "In this paper, flexible hydrophobic SiC ceramic nanofibers have been successfully fabricated via electrospinning and subsequent high temperature heat treatment. The synthesized SiC ceramic nanofibers show excellent flexibility without any breakage even under a bending angle of 142.6°, and high hydrophobicity with a water contact angle of 149.05°. The SiC nanofibers exhibit excellent electromagnetic (EM) wave absorption properties with an effective absorption bandwidth (reflection loss (RL) <−10 dB, 90% EM wave absorbed) of 4–18 GHz. The maximum reflection loss of SiC ceramic nanofibers reaches −19.4 dB at 5.84 GHz. In addition, the nanofibers are environmentally stable in 2 mol/L NaOH solution for 2 h and high temperature of 500 °C in air atmosphere. The excellent EM wave absorption performance, flexibility, hydrophobic properties, corrosion resistant properties in alkali environment and high temperature stability make SiC ceramic nanofibers to be a potential candidate for EM wave absorption used in harsh environment.",

keywords = "Electromagnetic properties, Flexibility, Hydrophobic, SiC nanofibers",

author = "Peng Wang and Laifei Cheng and Yani Zhang and Heng Wu and Yi Hou and Wenyu Yuan and Lianxi Zheng",

note = "Funding Information: This work is financially supported by Shaanxi Province Foundation for Fundamental Research (No. 2014JQ6229), Northwestern Polytechnic University (NPU) Foundation for Fundamental Research (No. NPU96-QZ-2014, No. 3102014JCQ01031, & No. 3102015ZY086), and the National Natural Science Fund of China (No. 51632007). Publisher Copyright: {\textcopyright} 2017 Elsevier Ltd and Techna Group S.r.l.",

year = "2017",

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doi = "10.1016/j.ceramint.2017.03.001",

language = "British English",

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pages = "7424--7435",

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TY - JOUR

T1 - Flexible, hydrophobic SiC ceramic nanofibers used as high frequency electromagnetic wave absorbers

AU - Wang, Peng

AU - Cheng, Laifei

AU - Zhang, Yani

AU - Wu, Heng

AU - Hou, Yi

AU - Yuan, Wenyu

AU - Zheng, Lianxi

N1 - Funding Information: This work is financially supported by Shaanxi Province Foundation for Fundamental Research (No. 2014JQ6229), Northwestern Polytechnic University (NPU) Foundation for Fundamental Research (No. NPU96-QZ-2014, No. 3102014JCQ01031, & No. 3102015ZY086), and the National Natural Science Fund of China (No. 51632007). Publisher Copyright: © 2017 Elsevier Ltd and Techna Group S.r.l.

PY - 2017/7/1

Y1 - 2017/7/1

N2 - In this paper, flexible hydrophobic SiC ceramic nanofibers have been successfully fabricated via electrospinning and subsequent high temperature heat treatment. The synthesized SiC ceramic nanofibers show excellent flexibility without any breakage even under a bending angle of 142.6°, and high hydrophobicity with a water contact angle of 149.05°. The SiC nanofibers exhibit excellent electromagnetic (EM) wave absorption properties with an effective absorption bandwidth (reflection loss (RL) <−10 dB, 90% EM wave absorbed) of 4–18 GHz. The maximum reflection loss of SiC ceramic nanofibers reaches −19.4 dB at 5.84 GHz. In addition, the nanofibers are environmentally stable in 2 mol/L NaOH solution for 2 h and high temperature of 500 °C in air atmosphere. The excellent EM wave absorption performance, flexibility, hydrophobic properties, corrosion resistant properties in alkali environment and high temperature stability make SiC ceramic nanofibers to be a potential candidate for EM wave absorption used in harsh environment.

AB - In this paper, flexible hydrophobic SiC ceramic nanofibers have been successfully fabricated via electrospinning and subsequent high temperature heat treatment. The synthesized SiC ceramic nanofibers show excellent flexibility without any breakage even under a bending angle of 142.6°, and high hydrophobicity with a water contact angle of 149.05°. The SiC nanofibers exhibit excellent electromagnetic (EM) wave absorption properties with an effective absorption bandwidth (reflection loss (RL) <−10 dB, 90% EM wave absorbed) of 4–18 GHz. The maximum reflection loss of SiC ceramic nanofibers reaches −19.4 dB at 5.84 GHz. In addition, the nanofibers are environmentally stable in 2 mol/L NaOH solution for 2 h and high temperature of 500 °C in air atmosphere. The excellent EM wave absorption performance, flexibility, hydrophobic properties, corrosion resistant properties in alkali environment and high temperature stability make SiC ceramic nanofibers to be a potential candidate for EM wave absorption used in harsh environment.

KW - Electromagnetic properties

KW - Flexibility

KW - Hydrophobic

KW - SiC nanofibers

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JO - Ceramics International

JF - Ceramics International

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ER -

Flexible, hydrophobic SiC ceramic nanofibers used as high frequency electromagnetic wave absorbers

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