About: Elastic properties and damping behavior of alumina-zirconia composites at room temperature

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Alumina-zirconia composite ceramics (AZ composites) have been prepared in the whole range of compositions from pure alumina to zirconia (in steps of 10 vol.%) by slip casting, followed by sintering at 1350 °C and microstructural characterization via the Archimedes method (relative densities 0.93-0.99). Young's modulus has been measured at room temperature via the impulse excitation technique (IET) and, after appropriate porosity correction (linear, power-law, exponential), found to be in good agreement with the Hashin-Shtrikman bounds. The damping factor (internal friction), which has been measured for dense AZ composites (also via IET at room temperature), is found to increase with increasing zirconia content. Damping factors measured for porous AZ composites with porosities 25-71 %, prepared with corn starch as a pore former, have been found to depend only slightly on porosity, unless the porosities are extremely high (} 70 %). At these porosities, however, where the Young's moduli approach zero, the damping factors exhibit a steep increase. Alumina-zirconia composite ceramics (AZ composites) have been prepared in the whole range of compositions from pure alumina to zirconia (in steps of 10 vol.%) by slip casting, followed by sintering at 1350 °C and microstructural characterization via the Archimedes method (relative densities 0.93-0.99). Young's modulus has been measured at room temperature via the impulse excitation technique (IET) and, after appropriate porosity correction (linear, power-law, exponential), found to be in good agreement with the Hashin-Shtrikman bounds. The damping factor (internal friction), which has been measured for dense AZ composites (also via IET at room temperature), is found to increase with increasing zirconia content. Damping factors measured for porous AZ composites with porosities 25-71 %, prepared with corn starch as a pore former, have been found to depend only slightly on porosity, unless the porosities are extremely high (} 70 %). At these porosities, however, where the Young's moduli approach zero, the damping factors exhibit a steep increase. (en)
Title	Elastic properties and damping behavior of alumina-zirconia composites at room temperature Elastic properties and damping behavior of alumina-zirconia composites at room temperature (en)
skos:prefLabel	Elastic properties and damping behavior of alumina-zirconia composites at room temperature Elastic properties and damping behavior of alumina-zirconia composites at room temperature (en)
skos:notation	RIV/60461373:22310/12:43894493!RIV13-GA0-22310___
http://linked.open...avai/predkladatel	Fakulta chemické technologie
http://linked.open...avai/riv/aktivita	P
http://linked.open...avai/riv/aktivity	P(GAP108/12/1170)
http://linked.open...iv/cisloPeriodika	7
http://linked.open...vai/riv/dodaniDat	2013
http://linked.open...aciTvurceVysledku	Gregorová, Eva 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	133782
http://linked.open...ai/riv/idVysledku	RIV/60461373:22310/12:43894493
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	porous ceramics (porosity); mechanical damping; elastic moduli (Young's modulus); alumina-zirconia composites; zirconia; Alumina (en)
http://linked.open.../riv/klicoveSlovo	Alumina alumina-zirconia composites elastic moduli (Young's modulus) mechanical damping porous ceramics (porosity) zirconia
http://linked.open...odStatuVydavatele	BE - Belgické království
http://linked.open...ontrolniKodProRIV	[6318C1C01B9C]
http://linked.open...i/riv/nazevZdroje	Ceramics International
http://linked.open...in/vavai/riv/obor	JH
http://linked.open...ichTvurcuVysledku	3 (xsd:int)
http://linked.open...cetTvurcuVysledku	4 (xsd:int)
http://linked.open...vavai/riv/projekt	Porous Ceramics with Tailored Elasticity and Thermal Conductivity
http://linked.open...UplatneniVysledku	2012
http://linked.open...v/svazekPeriodika	38
http://linked.open...iv/tvurceVysledku	Gregorová, Eva Pabst, Willi Hostaša, Jan Malangré, Daniel
issn	0272-8842
number of pages	9 (xsd:int)
http://bibframe.org/vocab/doi	10.1016/j.ceramint.2012.04.045
http://localhost/t...ganizacniJednotka	22310
is http://linked.open...avai/riv/vysledek of	Elastic properties and damping behavior of alumina-zirconia composites at room temperature

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