Publikace detail

Kinetic Study of Solid State Processes

Autoři: Málek Jiří | Mitsuhashi Takefumi

Rok: 2003

Druh publikace: kapitola v odborné knize

Název zdroje: Proceedings of 3rd International Symposium on Material Chemistry in Nuclear Environment

Název nakladatele: Japan Atomic Energy Research Institute

Místo vydání: Tokai-mura, Japonsko

Strana od-do: 149-155

Tituly:

Jazyk	Název	Abstrakt	Klíčová slova
cze	Kinetic Study of Solid State Processes	A simple method for kinetic analysis of solid-state processes has been developed and the criterial capable of classifying different processes are explored. They provide a useful tool for the determination of the most suitable kinetic model. The method has been applied to the analysis of calorimetric data corresponding to the crystallization processes in amorphous ZrO2. It is found that the crystallization kinetics of amorphous powder sample exhibits a complex behavior under non-isothermal conditions. A two-parameter model provides a satisfactory desription of the crystallization process for isothermal and non-isothermal conditions. This enables better control of crystallization extent in fine ZrO2 powders that is important for preparation of zirconia ceramics with defined properties.	xxx
eng	Kinetic Study of Solid State Processes	A simple method for kinetic analysis of solid-state processes has been developed and the criterial capable of classifying different processes are explored. They provide a useful tool for the determination of the most suitable kinetic model. The method has been applied to the analysis of calorimetric data corresponding to the crystallization processes in amorphous ZrO2. It is found that the crystallization kinetics of amorphous powder sample exhibits a complex behavior under non-isothermal conditions. A two-parameter model provides a satisfactory desription of the crystallization process for isothermal and non-isothermal conditions. This enables better control of crystallization extent in fine ZrO2 powders that is important for preparation of zirconia ceramics with defined properties.	kinetics, crystallization, nucleation, growth, calorimetry, zirconium oxide

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