Publikace detail

Kinetic Phenomena in Non-crystalline Materials Studied by Thermal Analysis

Autoři: Málek Jiří | Pustková Pavla | Shánělová Jana

Rok: 2003

Druh publikace: článek v odborném periodiku

Název zdroje: Journal of Thermal Analysis and Calorimetry

Název nakladatele: Springer

Strana od-do: 289-297

Tituly:

Jazyk	Název	Abstrakt	Klíčová slova
cze	Kinetic Phenomena in Non-crystalline Materials Studied by Thermal Analysis	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.	xxxx
eng	Kinetic Phenomena in Non-crystalline Materials Studied by Thermal Analysis	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.	chalkogenide glasses, crystallization, glass transition, kinetic models, structural relaxation, viscosity

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