Dielectric Properties of Lithium Silicate Fired by Spark Plasma Sintering

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389021%3A_____%2F20%3A00540263" target="_blank" >RIV/61389021:_____/20:00540263 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68407700:21230/20:00342270

Výsledek na webu

<a href="https://iopscience.iop.org/article/10.1149/2162-8777/abb00b" target="_blank" >https://iopscience.iop.org/article/10.1149/2162-8777/abb00b</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1149/2162-8777/abb00b" target="_blank" >10.1149/2162-8777/abb00b</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Dielectric Properties of Lithium Silicate Fired by Spark Plasma Sintering

Popis výsledku v původním jazyce

This paper aims to study various physical properties of lithium silicate ceramics. The work starts with the synthesis followed by characterization of the compounds. The samples are synthesized by reaction between SiO2 and Li2CO3 powders, compacted by spark plasma sintering (SPS) and then characterized by XRD, SEM and other techniques. The electrical properties are studied by dielectric spectroscopy. Dielectric and conductive properties of lithium silicate depend on the composition and microstructure, which factors are interconnected with the processing parameters. Li2SiO3 and Li2Si2O5 were the major components present in the SPS bulk. The best combination of dielectric parameters is relative permittivity 6.41 and loss tangent 0.001 at frequency 0.9 MHz for the sample sintered at 950 C for 30 min. Relative permittivity as well as loss tangent was monitored to increase with temperature up to 250 C.

Název v anglickém jazyce

Dielectric Properties of Lithium Silicate Fired by Spark Plasma Sintering

Popis výsledku anglicky

This paper aims to study various physical properties of lithium silicate ceramics. The work starts with the synthesis followed by characterization of the compounds. The samples are synthesized by reaction between SiO2 and Li2CO3 powders, compacted by spark plasma sintering (SPS) and then characterized by XRD, SEM and other techniques. The electrical properties are studied by dielectric spectroscopy. Dielectric and conductive properties of lithium silicate depend on the composition and microstructure, which factors are interconnected with the processing parameters. Li2SiO3 and Li2Si2O5 were the major components present in the SPS bulk. The best combination of dielectric parameters is relative permittivity 6.41 and loss tangent 0.001 at frequency 0.9 MHz for the sample sintered at 950 C for 30 min. Relative permittivity as well as loss tangent was monitored to increase with temperature up to 250 C.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20501 - Materials engineering

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2020

Kód důvěrnosti údajů

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

Název periodika

ECS Journal of Solid State Science and Technology

ISSN

2162-8769

e-ISSN

—

Svazek periodika

9

Číslo periodika v rámci svazku

7

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

6

Strana od-do

073003

Kód UT WoS článku

000565746500001

EID výsledku v databázi Scopus

2-s2.0-85091171558