Production and microwave electromagnetic shielding effectiveness of polyaniline-La2Ti2O7:Er,Yb composites

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dc.authoridSahin, Ethem Ilhan/0000-0001-7859-9066
dc.contributor.authorSahin, Ethem Ilhan
dc.contributor.authorCanturk, Selim Burak
dc.contributor.authorEmek, Mehriban
dc.contributor.authorGenc, Seval
dc.contributor.authorKartal, Mesut
dc.date.accessioned2025-01-06T17:44:21Z
dc.date.available2025-01-06T17:44:21Z
dc.date.issued2021
dc.description.abstractIn this research, La2Ti2O7 doped with erbium-ytterbium was produced by using solid state technique. A series of compounds with the chemical equation (La1-x-yREx-y)(2)Ti2O7 were doped with (Er3+, x = 0.025, 0.050) and (Yb3+ y = 0.02) rare earth ions prepared by conventional solid state reaction method at 1350 degrees C for 24 h. X-ray diffraction (XRD), scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDS) were carried out for the structural analysis, which showed that second phase did not form in (La1-x-yREx-y)(2)Ti2O7. Additionally, the polyaniline- erbium, ytterbium doped La2Ti2O7 composites were fabricated via hot pressing using the compositions of (La0.955Yb0.02Er0.025)(2)Ti2O7, (La0.93Yb0.02Er0.05)(2)Ti2O7 and aniline. The weight ratios of erbium-ytterbium doped lanthanum titanate and aniline were 1:1 and 1:3 respectively, and epoxy resin was utilized to develop microwave shielding effectiveness composites. The microwave shielding effectiveness performances of polyaniline- La2Ti2O7: erbium-ytterbium composites were examined by shielding effect in 0-8 GHz using two-port vector network analyzer. A minimum of - 34.37 dB shielding effect performance was obtained in 6.27 GHz at the thickness of 2.0 mm. This shielding effect performance can be adjusted easily by managing the content of polyaniline in the composites for the needed frequency bands.
dc.description.sponsorshipMarmara University and Istanbul Technical University
dc.description.sponsorshipMarmara University and Istanbul Technical University funded this research. In addition, this research is attributed to Salim Sahin who died in 2014, and to Prof. Dr. Ayhan Mergen who died in 2017. The writers thank them and Prof. Dr. Mustafa Kibaroglu (MEF University) for their advice and endless assistance.
dc.identifier.doi10.36410/jcpr.2021.22.2.208
dc.identifier.endpage213
dc.identifier.issn1229-9162
dc.identifier.issue2
dc.identifier.scopus2-s2.0-85108550921
dc.identifier.scopusqualityQ3
dc.identifier.startpage208
dc.identifier.urihttps://doi.org/10.36410/jcpr.2021.22.2.208
dc.identifier.urihttps://hdl.handle.net/20.500.14669/3016
dc.identifier.volume22
dc.identifier.wosWOS:000648546200010
dc.identifier.wosqualityQ4
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherKorean Assoc Crystal Growth, Inc
dc.relation.ispartofJournal of Ceramic Processing Research
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_20241211
dc.subjectShielding effect
dc.subjectLa2Ti2O7
dc.subjectPolyaniline
dc.subjectPolymer-matrix composite
dc.titleProduction and microwave electromagnetic shielding effectiveness of polyaniline-La2Ti2O7:Er,Yb composites
dc.typeArticle

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