About: Thermal Conductivity of Ceramic Nanocomposites - the Phase Mixture Modeling Approach

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An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	In nanocrystalline materials the grain boundaries must be considered as regions of finite thickness with properties different from the crystalline bulk material present in the crystallite cores. Thus, dense (i.e. pore-free) single-phase nanocrystalline materials can be considered as quasi-two-phase systems whose effective properties can be calculated when quantitative thickness information is available and the property value of the grain boundary phase can be reliably estimated. Similarly, dense two-phase nanocomposites may be considered as quasi-three-phase systems and their effective properties can be predicted using an analogous phase mixture modeling approach. In this contribution this is done for the thermal conductivity of alumina-zirconia nanocomposites. A two-stage homogenization procedure is applied, consisting of a first step in which the alumina-zirconia composite is treated as a symmetric-cell material, and a second step in which the highly disordered grain boundary phase is treated as a m In nanocrystalline materials the grain boundaries must be considered as regions of finite thickness with properties different from the crystalline bulk material present in the crystallite cores. Thus, dense (i.e. pore-free) single-phase nanocrystalline materials can be considered as quasi-two-phase systems whose effective properties can be calculated when quantitative thickness information is available and the property value of the grain boundary phase can be reliably estimated. Similarly, dense two-phase nanocomposites may be considered as quasi-three-phase systems and their effective properties can be predicted using an analogous phase mixture modeling approach. In this contribution this is done for the thermal conductivity of alumina-zirconia nanocomposites. A two-stage homogenization procedure is applied, consisting of a first step in which the alumina-zirconia composite is treated as a symmetric-cell material, and a second step in which the highly disordered grain boundary phase is treated as a m (en)
Title	Thermal Conductivity of Ceramic Nanocomposites - the Phase Mixture Modeling Approach Thermal Conductivity of Ceramic Nanocomposites - the Phase Mixture Modeling Approach (en)
skos:prefLabel	Thermal Conductivity of Ceramic Nanocomposites - the Phase Mixture Modeling Approach Thermal Conductivity of Ceramic Nanocomposites - the Phase Mixture Modeling Approach (en)
skos:notation	RIV/60461373:22310/10:00022970!RIV11-MSM-22310___
http://linked.open...avai/riv/aktivita	P S Z
http://linked.open...avai/riv/aktivity	P(IAA401250703), S, Z(MSM6046137302)
http://linked.open...iv/cisloPeriodika	71
http://linked.open...vai/riv/dodaniDat	2011
http://linked.open...aciTvurceVysledku	Pabst, Willi Hostaša, Jan
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
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	292704
http://linked.open...ai/riv/idVysledku	RIV/60461373:22310/10:00022970
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Thermal conductivity; nanocrystalline ceramics; grain boundaries; phase-mixture models; sigmoidal average; symmetric-cell materials; core-shell microstructure; Wiener bounds; Hashin-Shtrikman bounds; Beran bounds; alumina; zirconia; composites. (en)
http://linked.open.../riv/klicoveSlovo	composites. core-shell microstructure phase-mixture models symmetric-cell materials Beran bounds Hashin-Shtrikman bounds Wiener bounds nanocrystalline ceramics Thermal conductivity grain boundaries zirconia sigmoidal average alumina
http://linked.open...odStatuVydavatele	CH - Švýcarská konfederace
http://linked.open...ontrolniKodProRIV	[67F3E98E5804]
http://linked.open...i/riv/nazevZdroje	Advances in Science and Technology
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	2010
http://linked.open...v/svazekPeriodika	2010
http://linked.open...iv/tvurceVysledku	Pabst, Willi Hostaša, Jan
http://linked.open...n/vavai/riv/zamer	Preparation and research of functional materials and material technologies using micro- and nanoscopic methods
issn	1662-0356
number of pages	6 (xsd:int)
http://localhost/t...ganizacniJednotka	22310

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