Fabrication and characterization of composites of a perovskite and polymers with high dielectric permittivity

Simple item page
dc.contributor.authorBasturk S.B.
dc.contributor.authorDancer C.E.J.
dc.contributor.authorMcNally T.
dc.date.accessioned2024-07-22T08:06:10Z
dc.date.available2024-07-22T08:06:10Z
dc.date.issued2021
dc.description.abstractComposites of strontium titanate (SrTiO3) at loadings up to 50 vol.% with polar poly(butylene terephthalate) (PBT) and non-polar linear low density polyethylene (LLDPE) were prepared to investigate their dielectric responses in the wireless frequency range. The SrTiO3 particles were uniformly dispersed in the polymers at low loadings, but were more bead-like and agglomerated at higher SrTiO3 loadings. The SrTiO3 has a strong nucleating effect on both polymers, increasing the crystallization temperature and reducing the crystallinity of both polymers. Dielectric properties of composites were measured between 2.45−5 GHz. Dielectric permittivity (ε') of composites at 2.45 GHz increased with increasing SrTiO3 content. ε' increased by a factor of 5 for PBT, from 3.7 for unfilled PBT to 16.5 and by a factor of ∼8.5 for unfilled LLDPE, from 2.3 to 19.7 for maximum SrTiO3 loading. The composites had similar dissipation factor values as the unfilled polymers. The Lichtenecker model was in good agreement with the experimental data. © 2020 Elsevier Ltd
dc.identifier.DOI-ID10.1016/j.materresbull.2020.111126
dc.identifier.issn00255408
dc.identifier.urihttp://akademikarsiv.cbu.edu.tr:4000/handle/123456789/13402
dc.language.isoEnglish
dc.publisherElsevier Ltd
dc.rightsAll Open Access; Green Open Access
dc.subjectCrystallinity
dc.subjectDielectric properties of solids
dc.subjectPermittivity
dc.subjectPerovskite
dc.subjectStrontium titanates
dc.subjectCrystallization temperature
dc.subjectDielectric permittivities
dc.subjectDielectric response
dc.subjectDissipation factors
dc.subjectFabrication and characterizations
dc.subjectLichtenecker models
dc.subjectPoly(butylene terephthalate)
dc.subjectProperties of composites
dc.subjectPolymers
dc.titleFabrication and characterization of composites of a perovskite and polymers with high dielectric permittivity
dc.typeArticle

Files

Collections

Scopus Koleksiyonu