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Influence of different BFO filler content on microwave absorption performances in BiFeO3/epoxy resin composites

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dc.contributor.authorRusly, SNAen_US
dc.contributor.authorIsmail, Ien_US
dc.contributor.authorMatori, KAen_US
dc.contributor.authorAbbas, Zen_US
dc.contributor.authorShaari, AHen_US
dc.contributor.authorAwang, Zen_US
dc.contributor.authorIbrahim, IRen_US
dc.contributor.authorIdris, FMen_US
dc.contributor.authorZaid, MHMen_US
dc.contributor.authorMahmood, MKAen_US
dc.contributor.authorHasan, IHen_US
dc.date.accessioned2024-05-29T02:58:00Z
dc.date.available2024-05-29T02:58:00Z
dc.date.issued2020
dc.description.abstractMultiferroic BiFeO3 (BFO) has garnered interest in recent years due to its magneto-electric coupling between ferroelectric and magnetic ordering. This unique property offers some advantages when applied as electromagnetic (EM) wave absorbers. In work reported here, the microwave absorption properties of multiferroic BFO/epoxy resin composites with different weight percentage (wt%) of BFO fillers of various thicknesses were investigated. The BFO powders were synthesized using high energy ball milling (HEBM) and sintered at 775 degrees C in a furnace with an ambient air condition. The sintered BFO powders with different weight ratios (50 wt%, 60 wt% and 70 wt%) were mixed with epoxy resin as a matrix to form a composite with thicknesses of 1, 2 and 3 mm. Phase identification, grain size and morphology, magnetic and microwave absorption properties of prepared samples were characterized. The absorption performances of samples were measured in the frequency range of 8-18 GHz. As a result, the compressed BFO powders and BFO/epoxy resin composites with 50-70 wt% BFO filler showed dual-band microwave absorption resonance behavior. The best performances were demonstrated by a 3 mm thick BF070 composite sample which exhibited a primary reflection loss (RL1) of - 26.0 dB at 9.1 GHz and a secondary reflection loss (RL2) of - 40.5 dB at 11.3 GHz, along with an associated -10 dB bandwidth of 1.31 GHz. The minimum reflection loss (RL) peaks were shifted to a lower frequency as the thicknesses were increased due to the lambda/4 condition. Theoretical studies on the absorbing wave mechanism reveal a unique combination of dielectric loss relaxations and antiferromagnetic resonance effects in the BFO absorbers.
dc.identifier.doi10.1016/j.ceramint.2019.09.027
dc.identifier.epage746
dc.identifier.isbn1873-3956
dc.identifier.issn0272-8842
dc.identifier.issue1
dc.identifier.scopusWOS:000498748300088
dc.identifier.spage737
dc.identifier.urihttps://oarep.usim.edu.my/handle/123456789/11669
dc.identifier.volume46
dc.languageEnglish
dc.language.isoen_US
dc.publisherElsevier Sci Ltden_US
dc.relation.ispartofCeramics International
dc.subjectReflection lossen_US
dc.subjectMagneticen_US
dc.subjectMultiferroicen_US
dc.subjectMicrowave absorbersen_US
dc.subjectBiFeO3en_US
dc.titleInfluence of different BFO filler content on microwave absorption performances in BiFeO3/epoxy resin composites
dc.typeArticleen_US
dspace.entity.typePublication

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