Please use this identifier to cite or link to this item: http://hdl.handle.net/1822/48525

TitleTemperature and frequency dependence of the dielectric and piezoelectric response of P(VDF-TrFE)/CoFe2O4 magnetoelectric composites
Author(s)Svirskas, S.
Banys, J.
Martins, Pedro Libânio Abreu
Lanceros-Méndez, S.
Keywordspolymer-matrix composites (PMCs)
Smart materials
Electrical properties
Issue date2017
PublisherLithuanian Physical Society (LPS)
JournalLithuanian Journal of Physics
CitationSvirskas, Š., Belovickis, J., Šemeliovas, D., Martins, P., Lanceros-Méndez, S., & Banys, J. (2017). Temperature and frequency dependence of the dielectric and piezoelectric response of P (VDF–TrFE)/CoFe2O4 magnetoelectric composites. Lithuanian Journal of Physics, 57(2)
Abstract(s)CoFe2O4 nanoparticles embedded on polyvinylidene fluoride (PVDF) matrix shows suitable propertied for practical application as piezoelectric and magnetoelectric transducers. Essential for these applications is the knowledge about the dielectric, ferroelectric and piezoelectric responses of the multiferroic films at high frequencies and low temperatures. This work reports on the effect of ferrite content, temperature and frequency on the dielectric, ferroelectric and piezoelectric responses of magnetoelectric CoFe2O4 nanocomposites. It was observed that for frequencies lower than 100 kHz, no substantial differences are detected on the ɛ’ and ɛ’’ values from composites with CoFe2O4 contents ranging from 5 to 11 wt.%. For higher frequencies (100 kHz - 250 MHz) and at temperatures ranging from 150 K to 400 K the same trend is observed, the ɛ’ and ɛ’’ values are being higher for the composite with 5 wt.% of ferrite content and lower in the composites with 11 wt.%, indicating that after a critical filler loading, the e CoFe2O4 nanoparticles lead to a decrease the dielectric response of the composites at higher frequencies. For all composite compositions increasing temperature leads to lower coercive fields and higher piezoelectric and polarization values.
TypeArticle
URIhttp://hdl.handle.net/1822/48525
DOI10.3952/physics.v57i2.3517
ISSN1648-8504
e-ISSN2424-3647
Publisher versionhttp://lmaleidykla.lt/ojs/index.php/physics/article/view/3517
Peer-Reviewedyes
AccessRestricted access (UMinho)
Appears in Collections:CDF - FCD - Artigos/Papers (with refereeing)

Files in This Item:
File Description SizeFormat 
28.pdf
  Restricted access
1,32 MBAdobe PDFView/Open

Partilhe no FacebookPartilhe no TwitterPartilhe no DeliciousPartilhe no LinkedInPartilhe no DiggAdicionar ao Google BookmarksPartilhe no MySpacePartilhe no Orkut
Exporte no formato BibTex mendeley Exporte no formato Endnote Adicione ao seu ORCID