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Statements

Subject Item
n2:RIV%2F61388980%3A_____%2F09%3A00329728%21RIV10-AV0-61388980
rdf:type
n11:Vysledek skos:Concept
dcterms: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.
dcterms:title
Crystallization kinetics of amorphous alumina–zirconia–silica ceramics Crystallization kinetics of amorphous alumina–zirconia–silica ceramics
skos:prefLabel
Crystallization kinetics of amorphous alumina–zirconia–silica ceramics Crystallization kinetics of amorphous alumina–zirconia–silica ceramics
skos:notation
RIV/61388980:_____/09:00329728!RIV10-AV0-61388980
n3:aktivita
n13:Z n13:P
n3:aktivity
P(KAN300430651), Z(AV0Z20430508), Z(AV0Z40320502)
n3:cisloPeriodika
15
n3:dodaniDat
n4:2010
n3:domaciTvurceVysledku
n18:5292891 n18:1374710
n3:druhVysledku
n15:J
n3:duvernostUdaju
n6:S
n3:entitaPredkladatele
n9:predkladatel
n3:idSjednocenehoVysledku
308620
n3:idVysledku
RIV/61388980:_____/09:00329728
n3:jazykVysledku
n16:eng
n3:klicovaSlova
Nanocomposites; Al2O3; ZrO2; SiO2; Solid-state reaction
n3:klicoveSlovo
n7:Nanocomposites n7:Al2O3 n7:Solid-state%20reaction n7:SiO2 n7:ZrO2
n3:kodStatuVydavatele
GB - Spojené království Velké Británie a Severního Irska
n3:kontrolniKodProRIV
[B50DF0DB8475]
n3:nazevZdroje
Journal of the European Ceramic Society
n3:obor
n5:JH
n3:pocetDomacichTvurcuVysledku
2
n3:pocetTvurcuVysledku
4
n3:projekt
n14:KAN300430651
n3:rokUplatneniVysledku
n4:2009
n3:svazekPeriodika
29
n3:tvurceVysledku
Dubský, Jiří Klementová, Mariana Hostomský, Jiří Chráska, Tomáš
n3:wos
000270162100007
n3:zamer
n10:AV0Z20430508 n10:AV0Z40320502
s:issn
0955-2219
s:numberOfPages
7