Electromagnetic properties of magnetite/epoxy resin composites at X-band frequency

This paper aims to investigate the electromagnetic properties of magnetite/epoxy resin composites in the range of 8.2-12.4 GHz (X-band) frequency. The crystalline structure of magnetite (Fe 3 O 4 ) powder was confirmed by X-ray Diffraction (XRD). The magnetite powder with different weight percent (4...

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Main Authors:	Chan, Yi Lin, Fahmiruddin, Esa, You, Kok Yeow, Sim, Man Seng, Mohd Zul Hilmi, Mayzan, Mohamad Ashry, Jusoh
Format:	Conference or Workshop Item
Language:	English
Published:	IEEE 2017
Subjects:	Q Science (General)
Online Access:	http://umpir.ump.edu.my/id/eprint/24167/ http://umpir.ump.edu.my/id/eprint/24167/ http://umpir.ump.edu.my/id/eprint/24167/1/Electromagnetic%20properties%20of%20magnetite-epoxy%20resin%20composites%20at%20X-band%20frequency.pdf

id	ump-24167
recordtype	eprints
spelling	ump-241672019-08-02T00:31:26Z http://umpir.ump.edu.my/id/eprint/24167/ Electromagnetic properties of magnetite/epoxy resin composites at X-band frequency Chan, Yi Lin Fahmiruddin, Esa You, Kok Yeow Sim, Man Seng Mohd Zul Hilmi, Mayzan Mohamad Ashry, Jusoh Q Science (General) This paper aims to investigate the electromagnetic properties of magnetite/epoxy resin composites in the range of 8.2-12.4 GHz (X-band) frequency. The crystalline structure of magnetite (Fe 3 O 4 ) powder was confirmed by X-ray Diffraction (XRD). The magnetite powder with different weight percent (4, 8 and 12 wt%) was dispersed into epoxy resin (with ratio 2 : 1 epoxy and hardener) matrix mixture and poured into rectangular waveguide sample holder with dimensions (22.86 width × 10.16 height ×2 thickness) mm. The magnetite/epoxy resin composites were cured under room temperature for 24 hours before grounded and polished. Density kit was used to measure bulk density of the composites and the result showed an increment as the wt% of magnetite increased. Surface morphology of the composites were examined by Field Emission Scanning Electron Microscope (FESEM). The effects of epoxy resin containing different wt% of magnetite on scattering parameters, relative permittivity, ε r and permeability, μ r electrical conductivity, σ and absorption coefficient, A were studied. Scattering parameters of reflection, S 11 and transmission, S 21 , were measured by vector network analyser (VNA). The complex ε r and μ r were calculated by Nicolson-Ross-Weir (NRW) conversion technique using the measured complex S 11 and S 21. The 12 wt% composite had the highest value of real part of permittivity due to greater reflection coefficient and also highest dielectric loss factor. Each of the composite had very low magnetic loss mechanism and the value of μ r was nearly unity. The σ of the composites increased with frequency where the 8 and 12 wt% contents showed highest value of conductivity. The loss due to sample's absorption, A was calculated using A = 1 - \|S 11 \| 2 - \|S 21 \| 2 and it was found that 12 wt% had higher absorption. IEEE 2017 Conference or Workshop Item PeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/24167/1/Electromagnetic%20properties%20of%20magnetite-epoxy%20resin%20composites%20at%20X-band%20frequency.pdf Chan, Yi Lin and Fahmiruddin, Esa and You, Kok Yeow and Sim, Man Seng and Mohd Zul Hilmi, Mayzan and Mohamad Ashry, Jusoh (2017) Electromagnetic properties of magnetite/epoxy resin composites at X-band frequency. In: Progress In Electromagnetics Research Symposium (PIERS - FALL 2017), 19-22 November 2017 , Singapore. pp. 3004-3010., 2017. ISSN 1559-9450 ISBN 978-153861211-8 https://doi.org/10.1109/PIERS-FALL.2017.8293649
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
language	English
topic	Q Science (General)
spellingShingle	Q Science (General) Chan, Yi Lin Fahmiruddin, Esa You, Kok Yeow Sim, Man Seng Mohd Zul Hilmi, Mayzan Mohamad Ashry, Jusoh Electromagnetic properties of magnetite/epoxy resin composites at X-band frequency
description	This paper aims to investigate the electromagnetic properties of magnetite/epoxy resin composites in the range of 8.2-12.4 GHz (X-band) frequency. The crystalline structure of magnetite (Fe 3 O 4 ) powder was confirmed by X-ray Diffraction (XRD). The magnetite powder with different weight percent (4, 8 and 12 wt%) was dispersed into epoxy resin (with ratio 2 : 1 epoxy and hardener) matrix mixture and poured into rectangular waveguide sample holder with dimensions (22.86 width × 10.16 height ×2 thickness) mm. The magnetite/epoxy resin composites were cured under room temperature for 24 hours before grounded and polished. Density kit was used to measure bulk density of the composites and the result showed an increment as the wt% of magnetite increased. Surface morphology of the composites were examined by Field Emission Scanning Electron Microscope (FESEM). The effects of epoxy resin containing different wt% of magnetite on scattering parameters, relative permittivity, ε r and permeability, μ r electrical conductivity, σ and absorption coefficient, A were studied. Scattering parameters of reflection, S 11 and transmission, S 21 , were measured by vector network analyser (VNA). The complex ε r and μ r were calculated by Nicolson-Ross-Weir (NRW) conversion technique using the measured complex S 11 and S 21. The 12 wt% composite had the highest value of real part of permittivity due to greater reflection coefficient and also highest dielectric loss factor. Each of the composite had very low magnetic loss mechanism and the value of μ r was nearly unity. The σ of the composites increased with frequency where the 8 and 12 wt% contents showed highest value of conductivity. The loss due to sample's absorption, A was calculated using A = 1 - \|S 11 \| 2 - \|S 21 \| 2 and it was found that 12 wt% had higher absorption.
format	Conference or Workshop Item
author	Chan, Yi Lin Fahmiruddin, Esa You, Kok Yeow Sim, Man Seng Mohd Zul Hilmi, Mayzan Mohamad Ashry, Jusoh
author_facet	Chan, Yi Lin Fahmiruddin, Esa You, Kok Yeow Sim, Man Seng Mohd Zul Hilmi, Mayzan Mohamad Ashry, Jusoh
author_sort	Chan, Yi Lin
title	Electromagnetic properties of magnetite/epoxy resin composites at X-band frequency
title_short	Electromagnetic properties of magnetite/epoxy resin composites at X-band frequency
title_full	Electromagnetic properties of magnetite/epoxy resin composites at X-band frequency
title_fullStr	Electromagnetic properties of magnetite/epoxy resin composites at X-band frequency
title_full_unstemmed	Electromagnetic properties of magnetite/epoxy resin composites at X-band frequency
title_sort	electromagnetic properties of magnetite/epoxy resin composites at x-band frequency
publisher	IEEE
publishDate	2017
url	http://umpir.ump.edu.my/id/eprint/24167/ http://umpir.ump.edu.my/id/eprint/24167/ http://umpir.ump.edu.my/id/eprint/24167/1/Electromagnetic%20properties%20of%20magnetite-epoxy%20resin%20composites%20at%20X-band%20frequency.pdf
first_indexed	2023-09-18T22:36:26Z
last_indexed	2023-09-18T22:36:26Z
_version_	1777416627210420224

Electromagnetic properties of magnetite/epoxy resin composites at X-band frequency

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