Kinetic Processes in Amorphous Materials Revealed by Thermal Analysis: Application to Glassy Selenium
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F19%3A39914516" target="_blank" >RIV/00216275:25310/19:39914516 - isvavai.cz</a>
Result on the web
<a href="https://www.mdpi.com/1420-3049/24/15/2725" target="_blank" >https://www.mdpi.com/1420-3049/24/15/2725</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3390/molecules24152725" target="_blank" >10.3390/molecules24152725</a>
Alternative languages
Result language
angličtina
Original language name
Kinetic Processes in Amorphous Materials Revealed by Thermal Analysis: Application to Glassy Selenium
Original language description
It is expected that viscous flow is affecting the kinetic processes in a supercooled liquid, such as the structural relaxation and the crystallization kinetics. These processes significantly influence the behavior of glass being prepared by quenching. In this paper, the activation energy of viscous flow is discussed with respect to the activation energy of crystal growth and the structural relaxation of glassy selenium. Differential scanning calorimetry (DSC), thermomechanical analysis (TMA) and hot-stage infrared microscopy were used. It is shown that the activation energy of structural relaxation corresponds to that of the viscous flow at the lowest value of the glass transition temperature obtained within the commonly achievable time scale. The temperature-dependent activation energy of crystal growth, data obtained by isothermal and non-isothermal DSC and TMA experiments, as well as direct microscopic measurements, follows nearly the same dependence as the activation energy of viscous flow, taking into account viscosity and crystal growth rate decoupling due to the departure from Stokes-Einstein behavior.
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
10403 - Physical chemistry
Result continuities
Project
<a href="/en/project/GA17-11753S" target="_blank" >GA17-11753S: Kinetic analysis of complex physico-chemical processes</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Molecules
ISSN
1420-3049
e-ISSN
—
Volume of the periodical
24
Issue of the periodical within the volume
15
Country of publishing house
CH - SWITZERLAND
Number of pages
15
Pages from-to
"2725-1"-"2725-15"
UT code for WoS article
000482441100048
EID of the result in the Scopus database
2-s2.0-85070764954