Kinetic phenomena in non-crystalline materials studied by thermal analysis

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F03%3A00000553" target="_blank" >RIV/00216275:25310/03:00000553 - isvavai.cz</a>
Alternative codes found
RIV/00216275:25310/03:00000552
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Kinetic phenomena in non-crystalline materials studied by thermal analysis
Original language description
The structural relaxation and viscosity behavior of Ge38S62 glass has been studied by thermomechanical analysis. The relaxation response to any thermal history is well described by the Tool-Naraynaswamy-Moynihan model. The apparent activation energy of structural relaxation is very close to the activation energy of viscous flow (Eç=478#12 kJ mol-1). However, the activation energy of crystal growth obtained by optical microscopy is about one half of this value. Similar result has been obtained from isothermal DSC measurement (Ea=220#20 kJ mol-1). The kinetic analysis of these data reveals interface controlled crystal growth with zero nucleation rate.
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
CA - Inorganic chemistry
OECD FORD branch
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Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year
2003
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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