Publication detail

Correlation between Dielectric and Thermal Properties of Alkali-Activated Aluminosilicates with Carbon Fiber Admixture

ZMEŠKAL, O. FLORIÁN, P. VALENTOVÁ, K.FIALA, L.

Original Title

Correlation between Dielectric and Thermal Properties of Alkali-Activated Aluminosilicates with Carbon Fiber Admixture

Type

conference paper

Language

English

Original Abstract

The paper deals with the comparison of the thermal and dielectric properties of alkali-activated aluminosilicates containing the conductive admixture in the form of carbon fibers. To determine the thermal conductivity and thermal capacity of the system, a differential method based on the response to the step wise heating was used. The electrical conductivity and the capacities were determined by impedance spectroscopy. For both electrical and thermal properties, a model was created which allowed the determination of the characteristics of individual processes. The analysis of these models showed that the thermal conductivity of material decreases with increasing concentration of admixtures, probably because of greater porosity of material. For the concentration of 2.22% it is about three times smaller than for the concentration of 0.11%. The heat capacity is reduced at concentrations higher than 1.11%. The electrical conductivity decreases with increasing concentration of the admixture, which again seems to be related to greater porosity of material. For the concentration of 2.22% it is more than four times smaller than for the concentration of 0.11%.

Keywords

dielectric properties, thermal properties, alcali activated aluminisilicates

Authors

ZMEŠKAL, O.; FLORIÁN, P.; VALENTOVÁ, K.;FIALA, L.

Released

1. 1. 2018

Publisher

American Institute of Physics

Location

New York

ISBN

978-0-7354-1690-1

Book

ICNAAM 2017

Edition

AIP Conference Proceedings

Edition number

1978

Pages from

1

Pages to

4

Pages count

4

URL

https://aip.scitation.org/doi/10.1063/1.5043877

BibTex

@inproceedings{BUT155773,
  author="ZMEŠKAL, O. and FLORIÁN, P. and VALENTOVÁ, K. and FIALA, L.",
  title="Correlation between Dielectric and Thermal Properties of Alkali-Activated Aluminosilicates with Carbon Fiber
Admixture",
  booktitle="ICNAAM 2017",
  year="2018",
  series="AIP Conference Proceedings",
  number="1978",
  pages="1--4",
  publisher="American Institute of Physics",
  address="New York",
  doi="10.1063/1.5043877",
  isbn="978-0-7354-1690-1",
  url="https://aip.scitation.org/doi/10.1063/1.5043877"
}