(Ba,Ca)(Ti,Zr)O3-CeO2 translucent and opaque ceramics - Optical and electromechanical characteristics

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26620%2F23%3APU147097" target="_blank" >RIV/00216305:26620/23:PU147097 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S0955221922007907?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0955221922007907?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jeurceramsoc.2022.10.022" target="_blank" >10.1016/j.jeurceramsoc.2022.10.022</a>

Jazyk výsledku

angličtina

Název v původním jazyce

(Ba,Ca)(Ti,Zr)O3-CeO2 translucent and opaque ceramics - Optical and electromechanical characteristics

Popis výsledku v původním jazyce

This work demonstrates promising approaches to synthesize multifunctional-translucent BCZT-CeO2 ceramic for electro-mechanical/optical conversion. Nearly fully dense BCZT-CeO2 electroceramics were fabricated by spark plasma sintering (SPS) showing high dielectric permittivity of 5875 and low dielectric loss of 2.1%. Altogether, an extraordinary optical transmittance was attained as -40% at 750 nm wavelength and -46% in the infrared region. The fine grains restricted piezoelectric constant, d33, to a moderate value of -145 pC/N but with an enhanced Curie temperature, TC -135 degrees C. Post rapid pressure-less sintering on SPSed samples led to a fast grain growth within an extra hour of sintering and a major improvement of piezoelectric properties (d33 = 532 pC/N and kp = 43%) was achieved. A substantial amount of energy can be saved by both approaches owing to rapid heating/cooling rates and short dwell-times, at least when compared to conventional sintering. This success highlights ingenious avenues for further studies on BCZT-CeO2 electro-optical ceramics.

Název v anglickém jazyce

(Ba,Ca)(Ti,Zr)O3-CeO2 translucent and opaque ceramics - Optical and electromechanical characteristics

Popis výsledku anglicky

This work demonstrates promising approaches to synthesize multifunctional-translucent BCZT-CeO2 ceramic for electro-mechanical/optical conversion. Nearly fully dense BCZT-CeO2 electroceramics were fabricated by spark plasma sintering (SPS) showing high dielectric permittivity of 5875 and low dielectric loss of 2.1%. Altogether, an extraordinary optical transmittance was attained as -40% at 750 nm wavelength and -46% in the infrared region. The fine grains restricted piezoelectric constant, d33, to a moderate value of -145 pC/N but with an enhanced Curie temperature, TC -135 degrees C. Post rapid pressure-less sintering on SPSed samples led to a fast grain growth within an extra hour of sintering and a major improvement of piezoelectric properties (d33 = 532 pC/N and kp = 43%) was achieved. A substantial amount of energy can be saved by both approaches owing to rapid heating/cooling rates and short dwell-times, at least when compared to conventional sintering. This success highlights ingenious avenues for further studies on BCZT-CeO2 electro-optical ceramics.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20504 - Ceramics

Projekt

<a href="/cs/project/GA21-24805S" target="_blank" >GA21-24805S: Řízení rozhraní v bezolovnatých feroelektrických-dielektrických kompozitech pro zlepšení jejich elektromechanických vlastností</a><br>

Návaznosti

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

Rok uplatnění

2023

Kód důvěrnosti údajů

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

Název periodika

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY

ISSN

0955-2219

e-ISSN

1873-619X

Svazek periodika

43

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

9

Strana od-do

341-349

Kód UT WoS článku

000883835700005

EID výsledku v databázi Scopus

2-s2.0-85141110885