Nanodielectric system for cryogenic applications: Barium titanate filled polyvinyl alcohol

Author

Tuncer, Enis ; Sauers, Isidor ; James, D. Randy ; Ellis, Alvin R. ; Duckworth, Robert C.

Author_Institution

Oak Ridge Nat. Lab.., Oak Ridge

Volume

15

Issue

1

fYear

2008

fDate

2/1/2008 12:00:00 AM

Firstpage

236

Lastpage

242

Abstract

In the current study we focus on dielectric properties (as a function of frequency and temperature) of a polymeric composite system composed of polyvinyl alcohol and barium titanate nano powder. In the investigations, the temperature range is between 50-295 K, and the frequency range is between 20 Hz-1 MHz. Polarization and conduction processes are investigated in the linear regime. Dielectric breakdown strengths of samples are also reported. The materials presented have potential to be implemented in cryogenic capacitor or field grading applications.

Keywords

barium compounds; dielectric polarisation; dielectric relaxation; electric breakdown; filled polymers; nanocomposites; nanoparticles; BaTiO₃; barium titanate; conduction; cryogenic applications; dielectric breakdown strengths; dielectric properties; dielectric relaxation; filled polyvinyl alcohol; frequency 20 Hz to 1 MHz; nano powder; nanodielectric system; polarization; temperature 50 K to 295 K; Barium; Cryogenics; Dielectrics; Frequency; Interconnected systems; Optical polarization; Polymers; Powders; Temperature distribution; Titanium compounds;

fLanguage

English

Journal_Title

Dielectrics and Electrical Insulation, IEEE Transactions on

Publisher

ieee

ISSN

1070-9878

Type

jour

DOI

10.1109/T-DEI.2008.4446756

Filename

4446756