Effect of alumina or zirconia particles on the performance of lead-free BCZT piezoceramics
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26620%2F24%3APU152399" target="_blank" >RIV/00216305:26620/24:PU152399 - isvavai.cz</a>
Alternative codes found
RIV/68081723:_____/24:00602470
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S0272884224047187" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0272884224047187</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.ceramint.2024.10.199" target="_blank" >10.1016/j.ceramint.2024.10.199</a>
Alternative languages
Result language
angličtina
Original language name
Effect of alumina or zirconia particles on the performance of lead-free BCZT piezoceramics
Original language description
The barium titanate derivative Ba0.85Ca0.15Zr0.1Ti0.9O3 (BCZT) offers high dielectric and piezoelectric performance but has poor mechanical properties. Ceramic composite materials combining BCZT with tougher Al2O3 or ZrO2 could be the solution to the inherent brittleness of electroceramics. This work focuses on BCZT with 1–5 vol% addition of reinforcing phase dispersed in the microstructure. While hardness was improved in all composites, especially in ZrO2-reinforced BCZT, toughness was positively affected only by Al2O3. The chemical reactivity of BCZT during sintering resulted in the formation of new barium aluminate phases at the grain boundaries and possibly also within the grains, which affected the electrical properties of the composites. The addition of zirconia resulted in the formation of BaZrO3 or Ba(Zr,Ti)O3, which is a natural part of the BCZT solid solution and shifts the phase composition towards relaxor behaviour. ZrO2-reinforced composites exhibited higher permittivity but lower ferroelectric properties, accompanied by a substantial Curie temperature decrease.
Czech name
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Czech description
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Classification
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
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
CERAMICS INTERNATIONAL
ISSN
0272-8842
e-ISSN
1873-3956
Volume of the periodical
50
Issue of the periodical within the volume
24
Country of publishing house
GB - UNITED KINGDOM
Number of pages
11
Pages from-to
53491-53501
UT code for WoS article
001374709300001
EID of the result in the Scopus database
2-s2.0-85206634413