Electromagnetic shielding effectiveness of epoxy/lanthanum iron garnet (LIG) nanocomposites at Ku-band frequency

N. I. Z., Azman and M. A. A., Zaini and N. A. M. N., Hamid and R., Nazlan and M. A., Jusoh (2022) Electromagnetic shielding effectiveness of epoxy/lanthanum iron garnet (LIG) nanocomposites at Ku-band frequency. In: Materials Today: Proceedings, 3rd Symposium on Industrial Science and Technology (SISTEC2021) , 25-26 August 2021 , Virtual Conference, Universiti Malaysia Pahang, Malaysia. pp. 1432-1436., 51 (Part 2). ISSN 2214-7853

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Abstract

The effect of shielding materials on electromagnetic (EM) waves has been studied. This research was carried out to investigate the shielding effectiveness of Epoxy/ Lanthanum Iron Garnet (LIG) nanocomposite. Lanthanum (III) Oxide (La2O3) and Iron (III) Oxide (Fe2O3) was used to form Lanthanum Iron Garnet (LIG) as a shielding material. The Lanthanum Iron Garnet nanoparticle as a filler was prepared using solid-state reaction methods and was sintered at 900 °C. The X-ray diffraction (XRD) pattern of Lanthanum Iron Garnet was observed using an X-ray diffractometer (Rigaku Miniflex) at a diffraction angle of 20° to 80°. The functional group was obtained by using Fourier Transform Infrared Spectroscopy (FTIR). Different compositions of Lanthanum Iron Garnet fillers (5 wt% and 10 wt%) were prepared and dispersed in epoxy resin to form Epoxy/ Lanthanum Iron Garnet nanocomposites. The morphology of the composites was determined using Field Emission Scanning Electron Microscopy (FESEM) and the samples were found inhomogeneous and homogeneous with filler particle size are about 15.95 nm and 15.45 nm for 5 wt% and 10 wt%, respectively. The Vector Network Analyzer (VNA) was utilized to measure a transmission coefficient and reflection at Ku-band frequency (12 to 18 GHz) to determine the shielding effectiveness of composites. From the result, the total shielding effectiveness of Epoxy/Lanthanum Iron Garnet (epoxy/LIG) nanocomposite was increased as the percentage of filler increases.

Item Type:	Conference or Workshop Item (Lecture)
Additional Information:	Indexed by Scopus
Uncontrolled Keywords:	Electromagnetic; Lanthanum Iron garnet; Nanocomposite; Shielding effectiveness; Solid state method
Subjects:	H Social Sciences > HD Industries. Land use. Labor Q Science > Q Science (General) T Technology > T Technology (General)
Faculty/Division:	Faculty of Industrial Sciences And Technology Institute of Postgraduate Studies
Depositing User:	Mr Muhamad Firdaus Janih@Jaini
Date Deposited:	19 Oct 2022 09:06
Last Modified:	19 Oct 2022 09:06
URI:	http://umpir.ump.edu.my/id/eprint/35479
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