About: Elastic properties of porous alumina, zirconia and composite ceramics

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Micromechanical calculations and elasticity standard relations are used to predict the elastic properties of porous alumina, zirconia and kaolin-based ceramics, as well as the hightemperature Young moduli of alumina-zirconia and alumina-mullite composites. The predictions are compared with experimental results obtained via impulse excitation. It is found that the Young moduli of highly porous (cellular) alumina ceramics can be predicted via the Gibson-Ashby powerlaw relation, whereas for partially sintered kaolin-based ceramics our exponential relation, albeit better than the Gibson-Ashby relation, does not give a satisfactory prediction. However, once the Young moduli are known, the shear and bulk moduli can be reliably predicted in both cases, based on rough information on the Poisson ratio. The temperature dependence of the Young's moduli of two-phase composites can be quite precisely predicted as soon as the master curves of the constituent phases and the type of porosity (convex, concave, or saddle-point) are known. Micromechanical calculations and elasticity standard relations are used to predict the elastic properties of porous alumina, zirconia and kaolin-based ceramics, as well as the hightemperature Young moduli of alumina-zirconia and alumina-mullite composites. The predictions are compared with experimental results obtained via impulse excitation. It is found that the Young moduli of highly porous (cellular) alumina ceramics can be predicted via the Gibson-Ashby powerlaw relation, whereas for partially sintered kaolin-based ceramics our exponential relation, albeit better than the Gibson-Ashby relation, does not give a satisfactory prediction. However, once the Young moduli are known, the shear and bulk moduli can be reliably predicted in both cases, based on rough information on the Poisson ratio. The temperature dependence of the Young's moduli of two-phase composites can be quite precisely predicted as soon as the master curves of the constituent phases and the type of porosity (convex, concave, or saddle-point) are known. (en)
Title	Elastic properties of porous alumina, zirconia and composite ceramics Elastic properties of porous alumina, zirconia and composite ceramics (en)
skos:prefLabel	Elastic properties of porous alumina, zirconia and composite ceramics Elastic properties of porous alumina, zirconia and composite ceramics (en)
skos:notation	RIV/60461373:22310/14:43898421!RIV15-GA0-22310___
http://linked.open...avai/riv/aktivita	P
http://linked.open...avai/riv/aktivity	P(GAP108/12/1170)
http://linked.open...vai/riv/dodaniDat	2015
http://linked.open...aciTvurceVysledku	Andelová, Zuzana Uhlířová, Tereza Musilová, Anna 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	14025
http://linked.open...ai/riv/idVysledku	RIV/60461373:22310/14:43898421
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	high-temperature Young, shear and bulk modulus; resonant frequency; impulse excitation; elastic properties; kaolin-based ceramics; composites; mullite; zirconia; Alumina (en)
http://linked.open.../riv/klicoveSlovo	high-temperature Young shear and bulk modulus kaolin-based ceramics mullite elastic properties Alumina impulse excitation composites resonant frequency zirconia
http://linked.open...ontrolniKodProRIV	[6D0645494FC8]
http://linked.open...v/mistoKonaniAkce	Brno (Czech Republic)
http://linked.open...i/riv/mistoVydani	Zürich
http://linked.open...i/riv/nazevZdroje	Selected, peer reviewed papers from the 7th International Conference on Materials Structure and Micromechanics of Fracture MSMF7
http://linked.open...in/vavai/riv/obor	JH
http://linked.open...ichTvurcuVysledku	5 (xsd:int)
http://linked.open...cetTvurcuVysledku	5 (xsd:int)
http://linked.open...vavai/riv/projekt	Porous Ceramics with Tailored Elasticity and Thermal Conductivity
http://linked.open...UplatneniVysledku	2014
http://linked.open...iv/tvurceVysledku	Gregorová, Eva Musilová, Anna Pabst, Willi Uhlířová, Tereza Andelová, Zuzana
http://linked.open...vavai/riv/typAkce	EUR - Evropská
http://linked.open.../riv/zahajeniAkce	2013-07-01 (xsd:date)
number of pages	4 (xsd:int)
http://purl.org/ne...btex#hasPublisher	Trans Tech Publications
https://schema.org/isbn	978-3-03785-934-6
http://localhost/t...ganizacniJednotka	22310

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