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Proceedings Paper

Study on the microwave absorbing properties of nano-carbon black/SiC/epoxy resin composites
Author(s): Youpeng Wu; Xiangxuan Liu; Youjie Zhou; Bin Mo
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Paper Abstract

Epoxy (EP) was filled with nano-carbon black(CB) and micron SiC. The effects of CB and SiC fraction on the absorbing properties of the EP composites were studied. The structure and morphology of the samples were characterized by scanning electron microscopy (SEM). The spectroanalysis indicates that the absorbent particles are dispersed uniformly in the coating. At 8 ~ 18GHz, for composite coating with 1.05mm thickness, the absorbing bandwidth less than -5dB is 7.7GHz and less than -8dB is 4.6GHz, and the most reflection loss can reach -19.27dB. With the increase thickness of the coating, the absorbing peak value moves to the lower frequency. The bandwidth and the wave absorbing peak values increase along with the increasing of the content of CB filling fraction. And the absorbing mechanism of the composite was also discussed.

Paper Details

Date Published: 20 October 2009
PDF: 5 pages
Proc. SPIE 7493, Second International Conference on Smart Materials and Nanotechnology in Engineering, 74935M (20 October 2009); doi: 10.1117/12.824443
Show Author Affiliations
Youpeng Wu, Xi'an High Technology (China)
Xiangxuan Liu, Xi'an High Technology (China)
Youjie Zhou, Xi'an High Technology (China)
Bin Mo, Xi'an High Technology (China)

Published in SPIE Proceedings Vol. 7493:
Second International Conference on Smart Materials and Nanotechnology in Engineering
Jinsong Leng; Anand K. Asundi; Wolfgang Ecke, Editor(s)

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