Crystallization kinetics of the Y3Al5O12 glass

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F17%3A39911954" target="_blank" >RIV/00216275:25310/17:39911954 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1016/j.jallcom.2017.07.191" target="_blank" >http://dx.doi.org/10.1016/j.jallcom.2017.07.191</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.jallcom.2017.07.191" target="_blank" >10.1016/j.jallcom.2017.07.191</a>

Result language
angličtina
Original language name
Crystallization kinetics of the Y3Al5O12 glass
Original language description
Crystallization of glass prepared by flame technique from a crystalline YAG precursor synthesized by Pechini method was studied under noneisothermal conditions by differential scanning calorimetry. The crystallization peaks were mathematically deconvoluted into two peaks representing two overlapping thermal effects. These two peaks were examined in terms of the nucleationegrowth Johnson-Mehl -Avrami model, autocatalytic Sestak - Berggren model and Malek z(alpha) and y(alpha) functions. At lower heating rates, the only process in the system was volume crystallization with the apparent activation energy of 555 +/- 37 kJ* mol(-1).At higher heating rates, partial change of crystallization mechanism was observed with significant contribution of surface crystallization and the activation energy of 606 +/- 31 kJ* mol(-1)
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20504 - Ceramics

Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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