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HomeKey Engineering MaterialsKey Engineering Materials Vol. 775Magnetic and Microwave Absorption Properties of...

Magnetic and Microwave Absorption Properties of Magnetite-Durian Shell Nanocomposite Sheet in Gigahertz Range

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Abstract:

In this paper, a novel microwave absorber of thin, light weight, flexible, green and low cost magnetic nanocomposite sheet that can work in high frequency range is fabricated. The vast and increasing numbers in electronic and telecommunication devices has create electromagnetic interference (EMI) in which may lead to application disturbance. Therefore, electromagnetic (EM) wave absorber with the ability of high absorption rate is strongly demanded. Here, durian shell (Durio zibethinus Murray) embedded magnetite (Fe₃O₄) nanocomposite sheets were prepared via pulping and lumen loading technique. The nanocomposite sheets were fabricated by varying the weight percentage of the filler content (2-10 wt% of Fe₃O₄) at constant thickness and varying the thickness of the sheets (0.1-1.0 mm) at constant filler content. FESEM micrograph shows that the Fe₃O₄ nanoparticles are in cubical and spherical shape with the 20–50 nm of size range. The microwave absorption properties of the sheets were tested by a vector network analyze (VNA) in the frequency range of 4-18 GHz. The samples were also tested using vibrating sample magnetometer (VSM) in order to study the magnetic properties. The absorption or maximum reflection loss (R_L) of the samples increases continually and the increase of both filler content and sample thickness has led to the shift of dip to lower frequency region.

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Key Engineering Materials VIII

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Periodical:

Key Engineering Materials (Volume 775)

Pages:

217-223

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.775.217

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Online since:

August 2018

Authors:

Afraha Baiti Arif, Rose Farahiyan Munawar*, Qumrul Ahsan, Maisarah Abu

Keywords:

Durian Shell, Electromagnetic Wave, Gigahertz Range, Magnetic Sheet, Microwave Absorption, Natural Fiber

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* - Corresponding Author

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