Crystallization kinetics of glassy materials: the ultimate kinetic complexity?

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F18%3A39912590" target="_blank" >RIV/00216275:25310/18:39912590 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1007/s10973-018-7078-1" target="_blank" >http://dx.doi.org/10.1007/s10973-018-7078-1</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s10973-018-7078-1" target="_blank" >10.1007/s10973-018-7078-1</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Crystallization kinetics of glassy materials: the ultimate kinetic complexity?

Popis výsledku v původním jazyce

Four examples of complex crystallization kinetics changing with fundamental experimental conditions (temperature, heating rate) were introduced-formation of tetragonal ZrO2 in vanadium-doped zirconia catalyst, crystal growth in Y3Al5O12 (YAG) glass microspheres, multi-phase crystallization in (GeTe4)(50)(GaTe3)(50) chalcogenide glass for far-infrared optics and formation of crystallites in selenium glass. In each case, a unique solution employing either mathematic or kinetic deconvolution was utilized to obtain full description of the crystal growth kinetics and its dependence on temperature/heating rate. The article discusses merits and flaws of each approach together with the general advantages and disadvantages of the mathematic and kinetic deconvolution procedures. In conclusion, the kinetic deconvolution can be used as an exploratory tool; suitability of the method for full kinetic description of the process is conditioned by relative constancy of apparent activation energy across the explored range of experimental conditions and by describability of the experimental data within a framework of some standard kinetic model. On the other hand, mathematic deconvolution is not limited by the above-listed conditions and cannot properly account for potential mutual dependences occurring between the particular sub-processes.

Název v anglickém jazyce

Crystallization kinetics of glassy materials: the ultimate kinetic complexity?

Popis výsledku anglicky

Four examples of complex crystallization kinetics changing with fundamental experimental conditions (temperature, heating rate) were introduced-formation of tetragonal ZrO2 in vanadium-doped zirconia catalyst, crystal growth in Y3Al5O12 (YAG) glass microspheres, multi-phase crystallization in (GeTe4)(50)(GaTe3)(50) chalcogenide glass for far-infrared optics and formation of crystallites in selenium glass. In each case, a unique solution employing either mathematic or kinetic deconvolution was utilized to obtain full description of the crystal growth kinetics and its dependence on temperature/heating rate. The article discusses merits and flaws of each approach together with the general advantages and disadvantages of the mathematic and kinetic deconvolution procedures. In conclusion, the kinetic deconvolution can be used as an exploratory tool; suitability of the method for full kinetic description of the process is conditioned by relative constancy of apparent activation energy across the explored range of experimental conditions and by describability of the experimental data within a framework of some standard kinetic model. On the other hand, mathematic deconvolution is not limited by the above-listed conditions and cannot properly account for potential mutual dependences occurring between the particular sub-processes.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10403 - Physical chemistry

Projekt

<a href="/cs/project/GA17-11753S" target="_blank" >GA17-11753S: Kinetická analýza komplexních fyzikálně chemických procesů</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2018

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of Thermal Analysis and Calorimetry

ISSN

1388-6150

e-ISSN

—

Svazek periodika

134

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

10

Strana od-do

825-834

Kód UT WoS článku

000444736600082

EID výsledku v databázi Scopus

2-s2.0-85042234865