Properties of porous ceramics and phase mixture models for nanoceramics
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F09%3A00022162" target="_blank" >RIV/60461373:22310/09:00022162 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Properties of porous ceramics and phase mixture models for nanoceramics
Original language description
For several types of microstructures the effective properties of porous ceramics can be predicted using power laws or exponential relations, apart from the universally valid rigorous bounds (Voigt, Wiener, Hashin-Shtrikman). In this contribution these relations, as well as a new empirical relation (sigmoidal average), are recalled for the Young's modulus and thermal conductivity. Further, phase mixture models based on the rigorous bounds are used to estimate the grain size dependence of the Young's modulus and thermal conductivity for nanocrystalline ceramics, using cubic and tetrakaidecahedral cells. It is shown that for the Young's modulus (where the phase property contrast is typically close to unity) the prediction is quite sharp but the grain sizeeffect is small, whereas for thermal conductivity (where the phase property contrast may be far away from unity) the grain size effect can be large. An equivalent porosity concept is proposed to assess the relative importance of grain si
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
JH - Ceramics, fire-proof materials and glass
OECD FORD branch
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Result continuities
Project
<a href="/en/project/IAA401250703" target="_blank" >IAA401250703: POROUS CERAMICS, CERAMIC COMPOSITES AND NANOCERAMICS</a><br>
Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)
Others
Publication year
2009
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
Proceedings of the 11th International Conference and Exhibition of the European Ceramic Society
ISBN
978-83-60958-54-4
ISSN
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e-ISSN
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Number of pages
8
Pages from-to
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Publisher name
Polish Ceramic Society
Place of publication
Krakov
Event location
Krakov (Polsko)
Event date
Jun 21, 2009
Type of event by nationality
EUR - Evropská akce
UT code for WoS article
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