Structural, magnetic and electrical properties of barium titanate and magnesium ferrite composites

Structural, magnetic and electrical characteristics of multiferroics (1-x)BaTiO3-xMgFe2O4 composites with weight fractions of x = 0.3, 0.5 and 0.7 are reported. MgFe2O4 powders were prepared using sol-gel auto combustion technique. It was combined with commercial BaTiO3 to form composites by using w...

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Main Authors:	Mohamad Fahmi Amin Zolkepli, Zalita Zainuddin
Format:	Article
Language:	English
Published:	Penerbit Universiti Kebangsaan Malaysia 2017
Online Access:	http://journalarticle.ukm.my/11111/ http://journalarticle.ukm.my/11111/ http://journalarticle.ukm.my/11111/1/16%20Mohammad%20Fahmi.pdf

id	ukm-11111
recordtype	eprints
spelling	ukm-111112017-12-18T08:54:16Z http://journalarticle.ukm.my/11111/ Structural, magnetic and electrical properties of barium titanate and magnesium ferrite composites Mohamad Fahmi Amin Zolkepli, Zalita Zainuddin, Structural, magnetic and electrical characteristics of multiferroics (1-x)BaTiO3-xMgFe2O4 composites with weight fractions of x = 0.3, 0.5 and 0.7 are reported. MgFe2O4 powders were prepared using sol-gel auto combustion technique. It was combined with commercial BaTiO3 to form composites by using wet milling solid state reaction technique. Formation of tetragonal perovskite for the ferroelectric BaTiO3 and cubic spinel for the ferrimagnetic MgFe2O4 phases, were identified from the XRD pattern. The average grain size for each composite was about 0.5 μm. The M-H loop showed soft ferrimagnetic properties due to the presence of MgFe2O4 in the composites. The increment of the MgFe2O4 weight fraction increased the saturation magnetization and slightly changed the coercive field. The complex impedance plot can be represented by a parallel R and C circuit. Composite sample with x = 0.5 has the highest resistance with lowest capacitance and dielectric constant value at room temperature. The dielectric constant showed a very strong dispersion at low frequencies, due to the Maxwell-Wagner mechanism and a slight dispersion at higher frequencies. Based on the results obtained, all of the composite samples exhibited high dielectric constant and tangent loss at the low frequency range. Penerbit Universiti Kebangsaan Malaysia 2017-06 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/11111/1/16%20Mohammad%20Fahmi.pdf Mohamad Fahmi Amin Zolkepli, and Zalita Zainuddin, (2017) Structural, magnetic and electrical properties of barium titanate and magnesium ferrite composites. Sains Malaysiana, 46 (6). pp. 967-973. ISSN 0126-6039 http://www.ukm.my/jsm/malay_journals/jilid46bil6_2017/KandunganJilid46Bil6_2017.html
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Kebangasaan Malaysia
building	UKM Institutional Repository
collection	Online Access
language	English
description	Structural, magnetic and electrical characteristics of multiferroics (1-x)BaTiO3-xMgFe2O4 composites with weight fractions of x = 0.3, 0.5 and 0.7 are reported. MgFe2O4 powders were prepared using sol-gel auto combustion technique. It was combined with commercial BaTiO3 to form composites by using wet milling solid state reaction technique. Formation of tetragonal perovskite for the ferroelectric BaTiO3 and cubic spinel for the ferrimagnetic MgFe2O4 phases, were identified from the XRD pattern. The average grain size for each composite was about 0.5 μm. The M-H loop showed soft ferrimagnetic properties due to the presence of MgFe2O4 in the composites. The increment of the MgFe2O4 weight fraction increased the saturation magnetization and slightly changed the coercive field. The complex impedance plot can be represented by a parallel R and C circuit. Composite sample with x = 0.5 has the highest resistance with lowest capacitance and dielectric constant value at room temperature. The dielectric constant showed a very strong dispersion at low frequencies, due to the Maxwell-Wagner mechanism and a slight dispersion at higher frequencies. Based on the results obtained, all of the composite samples exhibited high dielectric constant and tangent loss at the low frequency range.
format	Article
author	Mohamad Fahmi Amin Zolkepli, Zalita Zainuddin,
spellingShingle	Mohamad Fahmi Amin Zolkepli, Zalita Zainuddin, Structural, magnetic and electrical properties of barium titanate and magnesium ferrite composites
author_facet	Mohamad Fahmi Amin Zolkepli, Zalita Zainuddin,
author_sort	Mohamad Fahmi Amin Zolkepli,
title	Structural, magnetic and electrical properties of barium titanate and magnesium ferrite composites
title_short	Structural, magnetic and electrical properties of barium titanate and magnesium ferrite composites
title_full	Structural, magnetic and electrical properties of barium titanate and magnesium ferrite composites
title_fullStr	Structural, magnetic and electrical properties of barium titanate and magnesium ferrite composites
title_full_unstemmed	Structural, magnetic and electrical properties of barium titanate and magnesium ferrite composites
title_sort	structural, magnetic and electrical properties of barium titanate and magnesium ferrite composites
publisher	Penerbit Universiti Kebangsaan Malaysia
publishDate	2017
url	http://journalarticle.ukm.my/11111/ http://journalarticle.ukm.my/11111/ http://journalarticle.ukm.my/11111/1/16%20Mohammad%20Fahmi.pdf
first_indexed	2023-09-18T19:59:22Z
last_indexed	2023-09-18T19:59:22Z
_version_	1777406744943656960

Structural, magnetic and electrical properties of barium titanate and magnesium ferrite composites

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