Singh, Avanish Pratap and Mishra, Monika and Chandra, Amita and Dhawan, S K (2011) Graphene oxide/ferrofluid/cement composites for electromagnetic interference shielding application. Nanotechnology , 22 (46). p. 465701. ISSN 1361-6528

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Abstract

This paper deals with the preparation of graphene oxide-ferrofluid-cement nanocomposites to evaluate the electromagnetic interference (EMI) shielding effectiveness (SE) in the 8.2-12.4 GHz frequency range. It has been observed that incorporation of graphene oxide (30 wt%) along with an appropriate amount of ferrofluid in the cement matrix leads to a shielding effectiveness of 46 dB (>99% attenuation). The presence of graphene oxide and ferrofluid in the cement leads to strong polarizations and magnetic losses that consequently result in higher shielding effectiveness compared to pristine cement. The resulting nanocomposites have shown Shore hardness of 54 and dc conductivity of 10.40 S cm(-1). SEM reveals the homogeneous dispersion of graphene oxide and ferrofluid in the cement matrix.

Item Type:	Article
Additional Information:	Copyright for this article belongs to M/s Institute Of Physics.
Subjects:	Materials Science Applied Physics/Condensed Matter Nanoscience/ Nanotechnology Physics
Divisions:	UNSPECIFIED
Depositing User:	Mr. Abhishek Yadav
Date Deposited:	26 Dec 2012 09:14
Last Modified:	26 Dec 2012 09:14
URI:	http://npl.csircentral.net/id/eprint/915

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