About: Crystallization kinetics of amorphous alumina–zirconia

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About: Crystallization kinetics of amorphous alumina–zirconia–silica ceramics Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Crystallization kinetics of amorphous alumina–zirconia–silica ceramics was studied by nonisothermal differential scanning calorimetry (DSC). Different amorphous materials were produced by plasma spraying of near-eutectic Al2O3–ZrO2–SiO2 mixtures. Phase composition and microstructure of the amorphous materials and nanocrystalline products were analyzed. All of the investigated materials show an exothermic peak between 940 and 990 C in the 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.% SiO2 proceeds by a diffusion-controlled mechanism with nucleation occurring predominantly at the beginning of the process. Crystallization kinetics of amorphous alumina–zirconia–silica ceramics was studied by nonisothermal differential scanning calorimetry (DSC). Different amorphous materials were produced by plasma spraying of near-eutectic Al2O3–ZrO2–SiO2 mixtures. Phase composition and microstructure of the amorphous materials and nanocrystalline products were analyzed. All of the investigated materials show an exothermic peak between 940 and 990 C in the 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.% SiO2 proceeds by a diffusion-controlled mechanism with nucleation occurring predominantly at the beginning of the process. (en)
Title	Crystallization kinetics of amorphous alumina–zirconia–silica ceramics Crystallization kinetics of amorphous alumina–zirconia–silica ceramics (en)
skos:prefLabel	Crystallization kinetics of amorphous alumina–zirconia–silica ceramics Crystallization kinetics of amorphous alumina–zirconia–silica ceramics (en)
skos:notation	RIV/61388980:_____/09:00329728!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...iv/cisloPeriodika	15
http://linked.open...vai/riv/dodaniDat	2010
http://linked.open...aciTvurceVysledku	Klementová, Mariana Hostomský, Jiří
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 anorganické chemie AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	308620
http://linked.open...ai/riv/idVysledku	RIV/61388980:_____/09:00329728
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Nanocomposites; Al2O3; ZrO2; SiO2; Solid-state reaction (en)
http://linked.open.../riv/klicoveSlovo	Al2O3 SiO2 ZrO2 Nanocomposites Solid-state reaction
http://linked.open...odStatuVydavatele	GB - Spojené království Velké Británie a Severního Irska
http://linked.open...ontrolniKodProRIV	[B50DF0DB8475]
http://linked.open...i/riv/nazevZdroje	Journal of the European Ceramic Society
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	2009
http://linked.open...v/svazekPeriodika	29
http://linked.open...iv/tvurceVysledku	Chráska, Tomáš Klementová, Mariana Dubský, Jiří Hostomský, Jiří
http://linked.open...ain/vavai/riv/wos	000270162100007
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
issn	0955-2219
number of pages	7 (xsd:int)

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