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

Result code in 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>
Result on the web
<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>

Result language
angličtina
Original language name
(Ba,Ca)(Ti,Zr)O3-CeO2 translucent and opaque ceramics - Optical and electromechanical characteristics
Original language description
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.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20504 - Ceramics

Project
<a href="/en/project/GA21-24805S" target="_blank" >GA21-24805S: Tailoring of interfaces in lead-free ferroelectric-dielecric composites to enhance their electromechanical properties</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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