About: Properties of porous ceramics and phase mixture models for nanoceramics

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
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 size effect 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 siz 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 size effect 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 siz (en)
Title	Properties of porous ceramics and phase mixture models for nanoceramics Properties of porous ceramics and phase mixture models for nanoceramics (en)
skos:prefLabel	Properties of porous ceramics and phase mixture models for nanoceramics Properties of porous ceramics and phase mixture models for nanoceramics (en)
skos:notation	RIV/60461373:22310/09:00022162!RIV10-MSM-22310___
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(IAA401250703), Z(MSM6046137302)
http://linked.open...vai/riv/dodaniDat	2010
http://linked.open...aciTvurceVysledku	Gregorová, Eva Pabst, Willi
http://linked.open.../riv/druhVysledku	D - Článek ve sborníku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Vysoká škola chemicko-technologická v Praze / Fakulta chemické technologie
http://linked.open...dnocenehoVysledku	337174
http://linked.open...ai/riv/idVysledku	RIV/60461373:22310/09:00022162
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Porous ceramics; grain size effects; effective properties; sigmoidal average; Young's modulus; thermal conductivity; alumina; zirconia. (en)
http://linked.open.../riv/klicoveSlovo	effective properties zirconia. Young's modulus grain size effects thermal conductivity sigmoidal average alumina Porous ceramics
http://linked.open...ontrolniKodProRIV	[98642EBB4CC5]
http://linked.open...v/mistoKonaniAkce	Krakov (Polsko)
http://linked.open...i/riv/mistoVydani	Krakov
http://linked.open...i/riv/nazevZdroje	Proceedings of the 11th International Conference and Exhibition of the European Ceramic Society
http://linked.open...in/vavai/riv/obor	JH
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	2 (xsd:int)
http://linked.open...vavai/riv/projekt	POROUS CERAMICS, CERAMIC COMPOSITES AND NANOCERAMICS
http://linked.open...UplatneniVysledku	2009
http://linked.open...iv/tvurceVysledku	Gregorová, Eva Pabst, Willi
http://linked.open...vavai/riv/typAkce	EUR - Evropská
http://linked.open.../riv/zahajeniAkce	2009-06-21 (xsd:date)
http://linked.open...n/vavai/riv/zamer	Preparation and research of functional materials and material technologies using micro- and nanoscopic methods
number of pages	8 (xsd:int)
http://purl.org/ne...btex#hasPublisher	Polish Ceramic Society
https://schema.org/isbn	978-83-60958-54-4
http://localhost/t...ganizacniJednotka	22310
is http://linked.open...avai/riv/vysledek of	Properties of porous ceramics and phase mixture models for nanoceramics Properties of porous ceramics and phase mixture models for nanoceramics Properties of porous ceramics and phase mixture models for nanoceramics Properties of porous ceramics and phase mixture models for nanoceramics

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