Johnson-Mehl-Avrami kinetics as a universal description of crystallization in glasses?
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F24%3A39922016" target="_blank" >RIV/00216275:25310/24:39922016 - isvavai.cz</a>
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S0955221923011111?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0955221923011111?via%3Dihub</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.jeurceramsoc.2023.12.096" target="_blank" >10.1016/j.jeurceramsoc.2023.12.096</a>
Alternative languages
Result language
angličtina
Original language name
Johnson-Mehl-Avrami kinetics as a universal description of crystallization in glasses?
Original language description
Applicability of the Johnson-Mehl-Avrami (JMA) model beyond the typical range of the negative asymmetries of the crystallization peak was tested by means of theoretical simulations. Using the solid-state kinetic equation with implemented temperature dependences of either activation energy E or pre-exponential factor A, it was shown that the originally monotonically increasing transformation rate constant changes its evolution with temperature to a non-monotonous course, exhibiting a broad maximum. If the crystallization process following the non-isothermal JMA kinetics proceeds near this maximum, the asymmetry of the corresponding kinetic peak can gradually change to significantly positive values. Of particular interest are the cases with the JMA kinetic exponent mJMA >= 2, where the asymmetry of the JMA peaks changes with increasing heating rate from the typical negative values to largely positive values - such crystallization behavior was indeed observed for several chemically diverse materials (polymers, small organic molecules, chalcogenide and oxide glasses).
Czech name
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Czech description
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Classification
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
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of the European Ceramic Society
ISSN
0955-2219
e-ISSN
1873-619X
Volume of the periodical
44
Issue of the periodical within the volume
6
Country of publishing house
GB - UNITED KINGDOM
Number of pages
19
Pages from-to
4064-4082
UT code for WoS article
001182486700001
EID of the result in the Scopus database
2-s2.0-85182553955