Dielectric performance of composites of BaTiO3 and polymers for capacitor applications under microwave frequency

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dc.contributor.authorBasturk S.B.
dc.contributor.authorDancer C.E.J.
dc.contributor.authorMcNally T.
dc.date.accessioned2024-07-22T08:06:04Z
dc.date.available2024-07-22T08:06:04Z
dc.date.issued2021
dc.description.abstractComposites of nano-sized barium titanate (BaTiO3) with volume fractions up to 0.5 and poly(butylene terephthalate) (PBT) or linear low-density polyethylene (LLDPE) were made via extrusion. Scanning electron microscopy demonstrated that BaTiO3 is well dispersed in the polymer matrices. The crystalline content (DSC) and thermal stability (TGA) of both polymers decreased with increasing BaTiO3 loading. Dielectric properties of the composites were measured using a vector network analyzer. Both dielectric permittivity and tangent loss increased with increasing BaTiO3 content. At 2.45 GHz, the dielectric permittivity for 48 vol% BaTiO3-filled LLDPE and 43 vol% BaTiO3-filled PBT was 25 and 21.2, respectively. There was a good fit between the Lichtenecker model and experimental data obtained up to a certain value, with the permittivity variations being dependent on volume fraction. The improved dielectric performance achieved on inclusion of BaTiO3 confirms both composite systems as potential candidates for microwave frequency capacitor applications. © 2021 Wiley Periodicals LLC.
dc.identifier.DOI-ID10.1002/app.50521
dc.identifier.issn00218995
dc.identifier.urihttp://akademikarsiv.cbu.edu.tr:4000/handle/123456789/13369
dc.language.isoEnglish
dc.publisherJohn Wiley and Sons Inc
dc.rightsAll Open Access; Green Open Access
dc.subjectDielectric properties of solids
dc.subjectElectric network analyzers
dc.subjectMicrowave frequencies
dc.subjectPermittivity
dc.subjectPolymers
dc.subjectScanning electron microscopy
dc.subjectVolume fraction
dc.subjectDielectric performance
dc.subjectDielectric permittivities
dc.subjectLichtenecker models
dc.subjectPoly(butylene terephthalate)
dc.subjectPolymer matrices
dc.subjectTangent loss
dc.subjectVector network analyzers
dc.subjectWell-dispersed
dc.subjectBarium titanate
dc.titleDielectric performance of composites of BaTiO3 and polymers for capacitor applications under microwave frequency
dc.typeArticle

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