Crystallization kinetics of amorphous alumina?zirconia?silica ceramics

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389021%3A_____%2F09%3A00329728" target="_blank" >RIV/61389021:_____/09:00329728 - isvavai.cz</a>
Alternative codes found
RIV/61388980:_____/09:00329728
Result on the web
—
DOI - Digital Object Identifier
—

Result language
angličtina
Original language name
Crystallization kinetics of amorphous alumina?zirconia?silica ceramics
Original language 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.
Czech name
—
Czech description
—

Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
JH - Ceramics, fire-proof materials and glass
OECD FORD branch
—

Project
<a href="/en/project/KAN300430651" target="_blank" >KAN300430651: Nanocrystallization of plasma sprayed coatings based on eutectic ceramic alloys</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year
2009
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Similar results(10)