Verification of relative permittivity models for composite nanodielectrics at elevated temperatures

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23220%2F18%3A43952391" target="_blank" >RIV/49777513:23220/18:43952391 - isvavai.cz</a>

Result on the web

<a href="https://ieeexplore.ieee.org/document/8642034" target="_blank" >https://ieeexplore.ieee.org/document/8642034</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1109/ICHVE.2018.8642034" target="_blank" >10.1109/ICHVE.2018.8642034</a>

Result language

angličtina

Original language name

Verification of relative permittivity models for composite nanodielectrics at elevated temperatures

Original language description

Composite materials and determination of their properties is a much-discussed topic not only in the field of the high voltage insulation systems. In this field, one of the most important parameters which may be determined is relative permittivity, also known as the dielectric constant. In some of the times, few mathematical formulas, e.g. linear, Birchak’s, Landau- Lifshitz-Looyeng’s or Lichtenecker-Rother’s, were valid. The basic problem of usage of these formulas occurred with the application of filler with nano- dimensions, where the dielectric properties are affected by interaction zone between the surface of the filler and the matrix. The main aim of this paper is to use these formulas for calculations at elevated temperatures and compare them with the results from prepared samples of nanocomposite material. The main contribution of this paper is placed in the knowledge of the temperature dependence of the magnesium oxide filler which was measured separately as a compressed pellet and may be used for precise calculation. The values of relative permittivity were measured from 30 to 120 °C. The different amount of filler was used for this investigation. Individual sample set contains 5 samples 10x10x0.1 cm for better statistical evaluation. The average values of the relative permittivity of each set were used for comparison with theoretical calculations and suggestion of modified formula.

Czech name

—

Czech description

—

Type

D - Article in proceedings

CEP classification

—

OECD FORD branch

20201 - Electrical and electronic engineering

Project

<a href="/en/project/LO1607" target="_blank" >LO1607: RICE - New technologies and concepts for smart industrial system</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Publication year

2018

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

2018 IEEE International Conference on High Voltage Engineering and Application (ICHVE 2018) : /proceedings/

ISBN

978-1-5386-5086-8

ISSN

2381-5043

e-ISSN

2474-3852

Number of pages

4

Pages from-to

1-4

Publisher name

IEEE

Place of publication

Piscataway

Event location

Athens, Greece

Event date

Sep 10, 2018

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

000462278900198