Effect of lithium carbonate on the sintering, microstructure, and functional properties of sol-gel-derived Ba0.85Ca0.15Zr0.1Ti0.9O3piezoceramics

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26620%2F20%3APU143942" target="_blank" >RIV/00216305:26620/20:PU143942 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.cambridge.org/core/journals/journal-of-materials-research/article/abs/effect-of-lithium-carbonate-on-the-sintering-microstructure-and-functional-properties-of-solgelderived-ba085ca015zr01ti09o3-piezoceramics/CAE83989D57B8BEE30220E71CBE6B54C#a" target="_blank" >https://www.cambridge.org/core/journals/journal-of-materials-research/article/abs/effect-of-lithium-carbonate-on-the-sintering-microstructure-and-functional-properties-of-solgelderived-ba085ca015zr01ti09o3-piezoceramics/CAE83989D57B8BEE30220E71CBE6B54C#a</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1557/jmr.2020.238" target="_blank" >10.1557/jmr.2020.238</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Effect of lithium carbonate on the sintering, microstructure, and functional properties of sol-gel-derived Ba0.85Ca0.15Zr0.1Ti0.9O3piezoceramics

Popis výsledku v původním jazyce

Piezoelectric Ba0.85Ca0.15Zr0.1Ti0.9O3 (BCZT) has been found to be a competitive lead-free piezoceramic candidate and was prepared by a sol-gel technique due to its small particle size and homogeneous particle size distribution, but the sintering temperature is still quite high in the previous reports. In the present paper, lithium carbonate (Li2CO3) was used as a sintering aid and dopant for the sol-gel-derived piezoceramic powder, to facilitate the sintering process and adjust the densification, the microstructures and functional properties. With the addition of 0.5 wt% Li2CO3 sintered at 1300 °C, a high relative density 96% with piezoelectric coefficient d33 ∼447 pC/N, planar coupling coefficient kp ∼0.51, and Curie point TC ∼98.7 °C was obtained. The way to properly define the critical changing points on temperature-dependent dielectric curves were further discussed. By altering sintering temperature and the amount of dopant, the mutual influence between the microstructures and the functional properties was explained, to further guide shaping BCZT in more complexed connectivities. Copyright © Materials Research Society 2020.

Název v anglickém jazyce

Effect of lithium carbonate on the sintering, microstructure, and functional properties of sol-gel-derived Ba0.85Ca0.15Zr0.1Ti0.9O3piezoceramics

Popis výsledku anglicky

Piezoelectric Ba0.85Ca0.15Zr0.1Ti0.9O3 (BCZT) has been found to be a competitive lead-free piezoceramic candidate and was prepared by a sol-gel technique due to its small particle size and homogeneous particle size distribution, but the sintering temperature is still quite high in the previous reports. In the present paper, lithium carbonate (Li2CO3) was used as a sintering aid and dopant for the sol-gel-derived piezoceramic powder, to facilitate the sintering process and adjust the densification, the microstructures and functional properties. With the addition of 0.5 wt% Li2CO3 sintered at 1300 °C, a high relative density 96% with piezoelectric coefficient d33 ∼447 pC/N, planar coupling coefficient kp ∼0.51, and Curie point TC ∼98.7 °C was obtained. The way to properly define the critical changing points on temperature-dependent dielectric curves were further discussed. By altering sintering temperature and the amount of dopant, the mutual influence between the microstructures and the functional properties was explained, to further guide shaping BCZT in more complexed connectivities. Copyright © Materials Research Society 2020.

Druh

J_SC - Článek v periodiku v databázi SCOPUS

CEP obor

—

OECD FORD obor

20504 - Ceramics

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

Geography, Environment, Sustainability

ISSN

2542-1565

e-ISSN

—

Svazek periodika

1

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

RU - Ruská federace

Počet stran výsledku

9

Strana od-do

1-9

Kód UT WoS článku

—

EID výsledku v databázi Scopus

2-s2.0-85094582809