Temperature dependence of Young's modulus and damping of uniaxially pressed and partially sintered mullite ceramics and mullite-alumina composites

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F24%3A43928641" target="_blank" >RIV/60461373:22310/24:43928641 - isvavai.cz</a>
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S0955221923007161?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0955221923007161?via%3Dihub</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.jeurceramsoc.2023.09.015" target="_blank" >10.1016/j.jeurceramsoc.2023.09.015</a>

Result language
angličtina
Original language name
Temperature dependence of Young's modulus and damping of uniaxially pressed and partially sintered mullite ceramics and mullite-alumina composites
Original language description
Partially sintered mullite ceramics and mullite-alumina (MA) composites have been prepared by uniaxial pressing and conventional sintering in the temperature range 1570–1620 °C. The temperature dependence of Young's modulus and damping is determined by impulse excitation from room temperature to 1400 °C. For the mullite ceramics the temperature dependence of Young's modulus exhibits the typical behavior expected for the majority of oxide ceramics, i.e. a continuous decrease with increasing temperature which can be conveniently described by master curves. The damping curves are unspectacular, showing only the usual steep increase at high temperature. For the MA composites the temperature dependence of Young's modulus exhibits an anomaly, viz. an increase from 800° to 900°C to a maximum at 1050–1100 °C, which is discussed in terms of two hypotheses from the literature (“glass phase hypothesis” and “phase transition hypothesis”), although the ultimate reason for this anomaly remains unclear. © 2023 Elsevier Ltd
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/GA22-25562S" target="_blank" >GA22-25562S: Impulse excitation as an unconventional method for monitoring phase changes and microstructure evolution during thermal loading of materials</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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