Electrical characterization of polymer matrix - TiO2 filler composites through isothermal polarization / depolarization currents and I–V tests

• Autorzy: Ilias Stavrakas , Dimos Triantis , George Hloupis , Konstantinos Moutzouris
• Języki publikacji: EN

Abstrakty

EN

Specimens of polymer matrix - ceramic TiO2 filler composites were prepared. The contribution of the filler content on the electrical conductivity and energy storage properties of the samples was examined. I–V and Isothermal Polarization/Depolarization Current (IPC/IDC) measurements were conducted. Dc conductivity values directly calculated from the I–V curves exhibited excellent agreement with corresponding values derived from the IPC/IDC recordings. Standard models were employed for fitting the IPC/IDC data. In specific, the short and the very long depolarization times were fitted by use of power laws of different slopes, while the intermediate depolarization times were fitted as a sum of three exponential decays. The present study reveals a strong dependence of the depolarization and polarization processes, as well as of the dc conductivity, on the filler concentration.

Słowa kluczowe

EN

electrical conductivity; polarization and depolarization electrical current; polymeric matrix; ceramic fillers

• Czasopismo: Open Physics
• Rocznik: 2014
• Tom: 12
• Numer: 4
• Strony: 286-291

Daty

wydano

2014-04-01

online

2014-04-23

Twórcy

autor

Ilias Stavrakas

• Laboratory of Electrical Characterization of Materials and Electronic Devices, Department of Electronic Engineering, Technological Educational Institute of Athens, 12210, Athens, Greece,

autor

Dimos Triantis

• Laboratory of Electrical Characterization of Materials and Electronic Devices, Department of Electronic Engineering, Technological Educational Institute of Athens, 12210, Athens, Greece

autor

George Hloupis

• Laboratory of Electrical Characterization of Materials and Electronic Devices, Department of Electronic Engineering, Technological Educational Institute of Athens, 12210, Athens, Greece

autor

Konstantinos Moutzouris

• Laboratory of Electrical Characterization of Materials and Electronic Devices, Department of Electronic Engineering, Technological Educational Institute of Athens, 12210, Athens, Greece

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Identyfikatory

DOI

10.2478/s11534-014-0442-2