Dielectric properties of polymer mixtures with CaTiO3 perovskite: conventional and plasma-treated ceramic powders

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388963%3A_____%2F24%3A00616641" target="_blank" >RIV/61388963:_____/24:00616641 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61389021:_____/24:00616641

Výsledek na webu

<a href="https://www.tandfonline.com/doi/full/10.1080/19397038.2024.2420627" target="_blank" >https://www.tandfonline.com/doi/full/10.1080/19397038.2024.2420627</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1080/19397038.2024.2420627" target="_blank" >10.1080/19397038.2024.2420627</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Dielectric properties of polymer mixtures with CaTiO3 perovskite: conventional and plasma-treated ceramic powders

Popis výsledku v původním jazyce

We studied dielectric properties of a composite consisting of organic matrix and ceramic filler based on a high-permittivity CaTiO3. This very stable ceramic dielectric material was added into Dentacryl polymer in various proportions up to 32 vol.%. Besides crushed powder, a plasma-treated powder of a hollow character was applied. The ceramics contributed to a markedly enhanced permittivity of the composite, whereas the losses remained rather low and the DC resistivity high (εr = 30, tan δ = 0.05, ρv = 1013 Ωm). The system followed the mathematical model–the mixing rules concerning the frequency-dependent response to the electric field, whereas rather low concentrations of the CaTiO3 admixture were high enough to increase the dielectric characteristics over the mean values predicted by the mixing rules. This behaviour was typical mainly for the hollow powder, which enhanced the dielectric performance stronger than the ordinary form of CaTiO3 powder. However, because of less lossy character, the crushed powder of a traditional technology origin is more universal for making dielectric composites.

Název v anglickém jazyce

Dielectric properties of polymer mixtures with CaTiO3 perovskite: conventional and plasma-treated ceramic powders

Popis výsledku anglicky

We studied dielectric properties of a composite consisting of organic matrix and ceramic filler based on a high-permittivity CaTiO3. This very stable ceramic dielectric material was added into Dentacryl polymer in various proportions up to 32 vol.%. Besides crushed powder, a plasma-treated powder of a hollow character was applied. The ceramics contributed to a markedly enhanced permittivity of the composite, whereas the losses remained rather low and the DC resistivity high (εr = 30, tan δ = 0.05, ρv = 1013 Ωm). The system followed the mathematical model–the mixing rules concerning the frequency-dependent response to the electric field, whereas rather low concentrations of the CaTiO3 admixture were high enough to increase the dielectric characteristics over the mean values predicted by the mixing rules. This behaviour was typical mainly for the hollow powder, which enhanced the dielectric performance stronger than the ordinary form of CaTiO3 powder. However, because of less lossy character, the crushed powder of a traditional technology origin is more universal for making dielectric composites.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10403 - Physical chemistry

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2024

Kód důvěrnosti údajů

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

Název periodika

International Journal of Sustainable Engineering

ISSN

1939-7038

e-ISSN

1939-7046

Svazek periodika

17

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

12

Strana od-do

1096-1107

Kód UT WoS článku

001371952800001

EID výsledku v databázi Scopus

2-s2.0-85210981309