Microstructure and Young's modulus evolution during re-sintering of partially sintered alumina-zirconia composites (ATZ ceramics)

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F21%3A43923171" target="_blank" >RIV/60461373:22310/21:43923171 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1016/j.jeurceramsoc.2021.01.045" target="_blank" >https://doi.org/10.1016/j.jeurceramsoc.2021.01.045</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.jeurceramsoc.2021.01.045" target="_blank" >10.1016/j.jeurceramsoc.2021.01.045</a>

Result language
angličtina
Original language name
Microstructure and Young's modulus evolution during re-sintering of partially sintered alumina-zirconia composites (ATZ ceramics)
Original language description
Partially and fully sintered alumina-zirconia composites (ATZ ceramics), with porosities decreasing from 53.5 to 1 %, have been prepared by uniaxial pressing and firing at 1000-1500 degrees C and characterized by the Archimedes method and mercury intrusion porosimetry. Young's modulus has been measured via the impulse excitation technique at room temperature, resulting in an almost exponential porosity dependence (which is unusual for partially sintered ceramics in which the microstructure is dominated by concave pore surfaces), and at elevated temperatures up to 1500 degrees C during heating and cooling, resulting in a temperature master curve with a low temperature inflection point around 200 degrees C (accompanied by a damping maximum). Both results confirm previous findings for zirconia and are typical for zirconia-containing ceramics. When the original firing temperature is exceeded, sintering and densification continues, albeit with a temperature lag when the sintering activity (specific surface area) is reduced as a consequence of previous firing.
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/GA18-17899S" target="_blank" >GA18-17899S: Partially and fully sintered ceramics – processing, microstructure, properties, modeling and sintering theory</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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