Structural relaxation in chalcogenide glasses

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F23%3A39920266" target="_blank" >RIV/00216275:25310/23:39920266 - isvavai.cz</a>
Result on the web
<a href="https://ceramics.onlinelibrary.wiley.com/doi/10.1111/jace.18864" target="_blank" >https://ceramics.onlinelibrary.wiley.com/doi/10.1111/jace.18864</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1111/jace.18864" target="_blank" >10.1111/jace.18864</a>

Result language
angličtina
Original language name
Structural relaxation in chalcogenide glasses
Original language description
The structural relaxation of chalcogenide glasses is discussed within Tool-Narayanaswamy-Moynihan (TNM) formalism. The TNM parameters for more than 70 different glassy compositions are compared on the basis of the relaxation rate defined as R-f(Delta T) = -(dT(f)/dlogt)(i) at the inflection point of the isothermal relaxation curve plotted on a logarithmic timescale. The R-f(Delta T) depends on the TNM parameter ss and the parameter sigma, combining the nonlinearity parameter x, the effective activation energy h* or the fragility m. It is shown that R-f(10) estimated at 10 K below T-g is useful for the prediction of structural relaxation kinetics in different amorphous materials. The chalcogenide glasses are, for example, compared with oxide glasses and organic polymers. For all these materials, the R-f(10) versus sigma plot shows a well-defined pattern that is thoroughly discussed.
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
20501 - Materials engineering

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

Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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