Publication detail

Dielestric relaxation spectroscopy of glycerol to low temperatures

STRÁNÍK, R.

Original Title

Dielestric relaxation spectroscopy of glycerol to low temperatures

English Title

Dielestric relaxation spectroscopy of glycerol to low temperatures

Type

conference paper

Language

en

Original Abstract

This paper deals with the analysis of dielectric spectra of glycerol with dielectric relaxation spectroscopy (DRS). Dielectric spectra of glycerol have been measured in the frequency range 20 Hz to 10 MHz and in the temperature range 10 K to 300 K. The observed dielectric spectra featured a typical relaxation maximum, which could be in the first approximation described by the Arrhenius equation. The activation energy of the relaxation process observed was 90 MJ/kmol. The relaxation strength as well as the shape of the relaxation peak remained in the temperature interval 180 K - 230 K (visibility of peak) almost the same, thus indicating that no change of the relaxation mechanism comes about.

English abstract

This paper deals with the analysis of dielectric spectra of glycerol with dielectric relaxation spectroscopy (DRS). Dielectric spectra of glycerol have been measured in the frequency range 20 Hz to 10 MHz and in the temperature range 10 K to 300 K. The observed dielectric spectra featured a typical relaxation maximum, which could be in the first approximation described by the Arrhenius equation. The activation energy of the relaxation process observed was 90 MJ/kmol. The relaxation strength as well as the shape of the relaxation peak remained in the temperature interval 180 K - 230 K (visibility of peak) almost the same, thus indicating that no change of the relaxation mechanism comes about.

Keywords

Dielectric, relaxation, spectroscopy, glycerol, low temperature

RIV year

2007

Released

15.10.2007

Publisher

Inf. Zdeněk Novotný, CSc. Brno

Location

Brno

ISBN

978-80-7355-078-3

Book

New trends in physics

Edition

1

Edition number

1

Pages from

134

Pages to

137

Pages count

4

BibTex


@inproceedings{BUT25271,
  author="Rostislav {Stráník}",
  title="Dielestric relaxation spectroscopy of glycerol to low temperatures",
  annote="This paper deals with the analysis of dielectric spectra of glycerol with dielectric relaxation spectroscopy (DRS). Dielectric spectra of glycerol have been measured in the frequency range 20 Hz to 10 MHz and in the temperature range 10 K to 300 K. 
The observed dielectric spectra featured a typical relaxation maximum, which could be in the first approximation described by the Arrhenius equation. The activation energy of the relaxation process observed was 90 MJ/kmol. The relaxation strength as well as the shape of the relaxation peak remained in the temperature interval 180 K - 230 K (visibility of peak) almost the same, thus indicating that no change of the relaxation mechanism comes about. 
",
  address="Inf. Zdeněk Novotný, CSc. Brno",
  booktitle="New trends in physics",
  chapter="25271",
  edition="1",
  institution="Inf. Zdeněk Novotný, CSc. Brno",
  year="2007",
  month="october",
  pages="134--137",
  publisher="Inf. Zdeněk Novotný, CSc. Brno",
  type="conference paper"
}