Rapid pressureless sintering of barium titanate-based piezoceramics and their electromechanical harvesting performance

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26620%2F22%3APU145304" target="_blank" >RIV/00216305:26620/22:PU145304 - isvavai.cz</a>

Výsledek na webu

<a href="https://ceramics.onlinelibrary.wiley.com/doi/10.1111/jace.18602" target="_blank" >https://ceramics.onlinelibrary.wiley.com/doi/10.1111/jace.18602</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1111/jace.18602" target="_blank" >10.1111/jace.18602</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Rapid pressureless sintering of barium titanate-based piezoceramics and their electromechanical harvesting performance

Popis výsledku v původním jazyce

The innovative method of processing of Ba0.85Ca0.15Zr0.1Ti0.9O3 (BCZT), Ba0.95Ca0.05Ti0.91Sn0.09O3 (BCST), and BCZT doped with 0.07-wt.% CeO2 (Ce-BCZT) lead-free piezoceramics is presented. The rapid pressureless sintering (RPLS) technique can reduce high-temperature processing time more than eight times compared to the conventional sintering. RPLS was performed at a heating and cooling rate of 100 degrees C/min up to 1550 degrees C with 15-, 30-, 45-, and 60-min dwell times, producing defect and crack-free nearly dense ceramics. The optimal microstructure exhibiting the highest piezoelectric constant was reached after 30 min in BCZT (grain size 25-30 mu m, d(33) = 428 pC/N), 45 min in Ce-BCZT (grain size 30-35 mu m, d(33) = 515 pC/N), and 45 min of dwell time in BCST (grain size 58-68 mu m, d(33) = 443 pC/N). The highly competitive energy-harvesting properties were discovered for BCZT, resp. Ce-BCZT (n = 94.5, resp. 93.4%, FOMoff = 6.1, resp. 7.8 x 10(-10) m(2)/N) ceramics.

Název v anglickém jazyce

Rapid pressureless sintering of barium titanate-based piezoceramics and their electromechanical harvesting performance

Popis výsledku anglicky

The innovative method of processing of Ba0.85Ca0.15Zr0.1Ti0.9O3 (BCZT), Ba0.95Ca0.05Ti0.91Sn0.09O3 (BCST), and BCZT doped with 0.07-wt.% CeO2 (Ce-BCZT) lead-free piezoceramics is presented. The rapid pressureless sintering (RPLS) technique can reduce high-temperature processing time more than eight times compared to the conventional sintering. RPLS was performed at a heating and cooling rate of 100 degrees C/min up to 1550 degrees C with 15-, 30-, 45-, and 60-min dwell times, producing defect and crack-free nearly dense ceramics. The optimal microstructure exhibiting the highest piezoelectric constant was reached after 30 min in BCZT (grain size 25-30 mu m, d(33) = 428 pC/N), 45 min in Ce-BCZT (grain size 30-35 mu m, d(33) = 515 pC/N), and 45 min of dwell time in BCST (grain size 58-68 mu m, d(33) = 443 pC/N). The highly competitive energy-harvesting properties were discovered for BCZT, resp. Ce-BCZT (n = 94.5, resp. 93.4%, FOMoff = 6.1, resp. 7.8 x 10(-10) m(2)/N) ceramics.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20504 - Ceramics

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2022

Kód důvěrnosti údajů

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

Název periodika

JOURNAL OF THE AMERICAN CERAMIC SOCIETY

ISSN

0002-7820

e-ISSN

1551-2916

Svazek periodika

105

Číslo periodika v rámci svazku

11

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

12

Strana od-do

6886-6897

Kód UT WoS článku

000819561300001

EID výsledku v databázi Scopus

2-s2.0-85133207689