About: Solid state crystallization of alumina-zirconia-silica nanocomposites

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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	Several amorphous materials were produced by plasma spraying of near-eutectic mixtures from the system Al2O3–ZrO2–SiO2. Phase composition and microstructure of the amorphous materials as well as the nanocrystalline products were analyzed. All of the amorphous materials show an exothermic peak between 940 and 990 ºC in DSC experiments. The activation energies calculated from DSC traces decrease with increasing SiO2 concentration. Values of the Avrami coefficients together with results of the microstructural observations indicate that tetragonal zirconia crystallization from materials containing more than 10 wt.% of SiO2 proceeds by a diffusion-controlled mechanism. Significant increase of microhardness values in the heat treated samples can be attributed to the fine nanocomposite structure. The samples also exhibit significant improvement of the abrasion resistance making the nanocrystalline materials suitable for many applications. Several amorphous materials were produced by plasma spraying of near-eutectic mixtures from the system Al2O3–ZrO2–SiO2. Phase composition and microstructure of the amorphous materials as well as the nanocrystalline products were analyzed. All of the amorphous materials show an exothermic peak between 940 and 990 ºC in DSC experiments. The activation energies calculated from DSC traces decrease with increasing SiO2 concentration. Values of the Avrami coefficients together with results of the microstructural observations indicate that tetragonal zirconia crystallization from materials containing more than 10 wt.% of SiO2 proceeds by a diffusion-controlled mechanism. Significant increase of microhardness values in the heat treated samples can be attributed to the fine nanocomposite structure. The samples also exhibit significant improvement of the abrasion resistance making the nanocrystalline materials suitable for many applications. (en)
Title	Solid state crystallization of alumina-zirconia-silica nanocomposites Solid state crystallization of alumina-zirconia-silica nanocomposites (en)
skos:prefLabel	Solid state crystallization of alumina-zirconia-silica nanocomposites Solid state crystallization of alumina-zirconia-silica nanocomposites (en)
skos:notation	RIV/61388980:_____/10:00336717!RIV10-AV0-61388980
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(KAN300430651), Z(AV0Z20430508), Z(AV0Z40320502)
http://linked.open...vai/riv/dodaniDat	2010
http://linked.open...aciTvurceVysledku	Klementová, Mariana Hostomský, Jiří
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	Ústav anorganické chemie AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	288499
http://linked.open...ai/riv/idVysledku	RIV/61388980:_____/10:00336717
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	nanocrystalline ceramics; plasma spraying; heat treatment (en)
http://linked.open.../riv/klicoveSlovo	nanocrystalline ceramics heat treatment plasma spraying
http://linked.open...ontrolniKodProRIV	[70457613C015]
http://linked.open...v/mistoKonaniAkce	Krakow
http://linked.open...i/riv/mistoVydani	Cracow
http://linked.open...i/riv/nazevZdroje	Proceedings of the 11th European Ceramics Society Conference
http://linked.open...in/vavai/riv/obor	JH
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	4 (xsd:int)
http://linked.open...vavai/riv/projekt	Nanocrystallization of plasma sprayed coatings based on eutectic ceramic alloys
http://linked.open...UplatneniVysledku	2010
http://linked.open...iv/tvurceVysledku	Chráska, Tomáš Klementová, Mariana Kolman, Blahoslav Jan Hostomský, Jiří
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	Physical and chemical processes in plasmas and theis applications Design, syntéza a charakterizace klastrů, kompozitů, komplexů a dalších sloučenin na bázi anorganických látek; mechanismy a kinetika jejich interakcí
number of pages	7 (xsd:int)
http://purl.org/ne...btex#hasPublisher	European Ceramic Society and Polish Ceramic Society
https://schema.org/isbn	978-83-60958-54-4

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