About: Preparation and characterization of porous alumina-zirconia composite ceramics

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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	Four types of porous alumina–zirconia composites on the alumina-rich side, differing in the zirconia content (10–40 wt.%), have been prepared by starch consolidation casting with different amounts of corn starch (10–50 vol.%), and the resulting microstructures have been studied via the Archimedes method, microscopic image analysis and mercury porosimetry (bulk density, porosity, pore size and pore size distribution), with special regard to the evolution of the microstructure as a result of (partial) sintering in the temperature range 1100–1530 °C. An influence of the composition on pore size and shape has been observed. Elastic properties (Young's moduli) of the composites are measured via the impulse excitation method and the resonant frequency method and compared with micromechanical relations expressing the dependence of Young's modulus on porosity. It is found that the exponential relation and the sigmoidal average provide the best descriptions for the Young's moduli of materials. Four types of porous alumina–zirconia composites on the alumina-rich side, differing in the zirconia content (10–40 wt.%), have been prepared by starch consolidation casting with different amounts of corn starch (10–50 vol.%), and the resulting microstructures have been studied via the Archimedes method, microscopic image analysis and mercury porosimetry (bulk density, porosity, pore size and pore size distribution), with special regard to the evolution of the microstructure as a result of (partial) sintering in the temperature range 1100–1530 °C. An influence of the composition on pore size and shape has been observed. Elastic properties (Young's moduli) of the composites are measured via the impulse excitation method and the resonant frequency method and compared with micromechanical relations expressing the dependence of Young's modulus on porosity. It is found that the exponential relation and the sigmoidal average provide the best descriptions for the Young's moduli of materials. (en)
Title	Preparation and characterization of porous alumina-zirconia composite ceramics Preparation and characterization of porous alumina-zirconia composite ceramics (en)
skos:prefLabel	Preparation and characterization of porous alumina-zirconia composite ceramics Preparation and characterization of porous alumina-zirconia composite ceramics (en)
skos:notation	RIV/67985891:_____/11:00372385!RIV12-AV0-67985891
http://linked.open...avai/riv/aktivita	Z
http://linked.open...avai/riv/aktivity	Z(AV0Z30460519), Z(MSM6046137302)
http://linked.open...iv/cisloPeriodika	14
http://linked.open...vai/riv/dodaniDat	2012
http://linked.open...aciTvurceVysledku	Černý, Martin
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	Ústav struktury a mechaniky hornin AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	223044
http://linked.open...ai/riv/idVysledku	RIV/67985891:_____/11:00372385
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	sintering; slip casting; composites (en)
http://linked.open.../riv/klicoveSlovo	slip casting composites sintering
http://linked.open...odStatuVydavatele	GB - Spojené království Velké Británie a Severního Irska
http://linked.open...ontrolniKodProRIV	[734BB5B374BE]
http://linked.open...i/riv/nazevZdroje	Journal of the European Ceramic Society
http://linked.open...in/vavai/riv/obor	JI
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	4 (xsd:int)
http://linked.open...UplatneniVysledku	2011
http://linked.open...v/svazekPeriodika	31
http://linked.open...iv/tvurceVysledku	Černý, Martin Gregorová, E. Pabst, W. Sedlářová, I.
http://linked.open...ain/vavai/riv/wos	000294935100039
http://linked.open...n/vavai/riv/zamer	Research into the properties of geomaterials, development of methods of their ecological exploitation and interpretation of geodynamic processes Preparation and research of functional materials and material technologies using micro- and nanoscopic methods
issn	0955-2219
number of pages	11 (xsd:int)
http://bibframe.org/vocab/doi	10.1016/j.jeurceramsoc.2011.01.011

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