Electromagnetic wave absorbing properties of SiC/SiO2 composites with ordered inter-filled structure

Xiaoyan Yuan; Laifei Cheng; Litong Zhang

doi:10.1016/j.jallcom.2016.03.309

Electromagnetic wave absorbing properties of SiC/SiO₂ composites with ordered inter-filled structure

Xiaoyan Yuan, Laifei Cheng, Litong Zhang

School of Materials Sience and Engineering

Shaanxi University of Science and Technology

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

59 Scopus citations

Abstract

Silicon carbide/silica (SiC/SiO₂) monoliths with ordered inter-filled structure were prepared via nanocasting and cold-pressing, using polycarbosilane as precursor and ordered mesoporous silica SBA-15 as template. The SiC grains were incorporated, in form of ordered rodlike arrays, into nanochannels of SBA-15. Their electromagnetic (EM) wave absorbing properties were investigated in X-band, in which SiC acted as EM wave absorber and SiO₂ as transparent matrix. The results indicated that the composites had good EM absorbing properties due to the enhanced dielectric loss resulting from their intrinsic physical properties and special structures. The optimal absorbing properties were determined by impedance match and quarter-wavelength law.

Original language	English
Pages (from-to)	604-611
Number of pages	8
Journal	Journal of Alloys and Compounds
Volume	680
DOIs	https://doi.org/10.1016/j.jallcom.2016.03.309
State	Published - 25 Sep 2016

Keywords

Electromagnetic wave absorption
Ordered inter-filled structure
SiC/SiO composites

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10.1016/j.jallcom.2016.03.309

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title = "Electromagnetic wave absorbing properties of SiC/SiO2 composites with ordered inter-filled structure",

abstract = "Silicon carbide/silica (SiC/SiO2) monoliths with ordered inter-filled structure were prepared via nanocasting and cold-pressing, using polycarbosilane as precursor and ordered mesoporous silica SBA-15 as template. The SiC grains were incorporated, in form of ordered rodlike arrays, into nanochannels of SBA-15. Their electromagnetic (EM) wave absorbing properties were investigated in X-band, in which SiC acted as EM wave absorber and SiO2 as transparent matrix. The results indicated that the composites had good EM absorbing properties due to the enhanced dielectric loss resulting from their intrinsic physical properties and special structures. The optimal absorbing properties were determined by impedance match and quarter-wavelength law.",

keywords = "Electromagnetic wave absorption, Ordered inter-filled structure, SiC/SiO composites",

author = "Xiaoyan Yuan and Laifei Cheng and Litong Zhang",

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T1 - Electromagnetic wave absorbing properties of SiC/SiO2 composites with ordered inter-filled structure

AU - Yuan, Xiaoyan

AU - Cheng, Laifei

AU - Zhang, Litong

PY - 2016/9/25

Y1 - 2016/9/25

N2 - Silicon carbide/silica (SiC/SiO2) monoliths with ordered inter-filled structure were prepared via nanocasting and cold-pressing, using polycarbosilane as precursor and ordered mesoporous silica SBA-15 as template. The SiC grains were incorporated, in form of ordered rodlike arrays, into nanochannels of SBA-15. Their electromagnetic (EM) wave absorbing properties were investigated in X-band, in which SiC acted as EM wave absorber and SiO2 as transparent matrix. The results indicated that the composites had good EM absorbing properties due to the enhanced dielectric loss resulting from their intrinsic physical properties and special structures. The optimal absorbing properties were determined by impedance match and quarter-wavelength law.

AB - Silicon carbide/silica (SiC/SiO2) monoliths with ordered inter-filled structure were prepared via nanocasting and cold-pressing, using polycarbosilane as precursor and ordered mesoporous silica SBA-15 as template. The SiC grains were incorporated, in form of ordered rodlike arrays, into nanochannels of SBA-15. Their electromagnetic (EM) wave absorbing properties were investigated in X-band, in which SiC acted as EM wave absorber and SiO2 as transparent matrix. The results indicated that the composites had good EM absorbing properties due to the enhanced dielectric loss resulting from their intrinsic physical properties and special structures. The optimal absorbing properties were determined by impedance match and quarter-wavelength law.

KW - Electromagnetic wave absorption

KW - Ordered inter-filled structure

KW - SiC/SiO composites

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DO - 10.1016/j.jallcom.2016.03.309

M3 - 文章

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SN - 0925-8388

VL - 680

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EP - 611

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

ER -

Electromagnetic wave absorbing properties of SiC/SiO₂ composites with ordered inter-filled structure

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Keywords

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