How to determine activation energy of glass transition

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F14%3A39898712" target="_blank" >RIV/00216275:25310/14:39898712 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1007/s10973-014-4077-8" target="_blank" >http://dx.doi.org/10.1007/s10973-014-4077-8</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s10973-014-4077-8" target="_blank" >10.1007/s10973-014-4077-8</a>

Jazyk výsledku

angličtina

Název v původním jazyce

How to determine activation energy of glass transition

Popis výsledku v původním jazyce

The article critically reviews the current methodologies for determination of apparent activation energy of structural relaxation, a dagger h*, in the glass transition range. Tool-Narayanaswamy-Moynihan phenomenological model was used to simulate data for all major types of relaxation behavior, which were consequently evaluated in terms of the tested methodologies (curve-fitting, evaluation of a dagger h* from intrinsic cycles and evaluation of a dagger h* from constant heating rate cycles). Advantagesand disadvantages of particular methodologies are demonstrated and thoroughly discussed. In addition, effects of various data-distortive effects influencing determination of glass transition activation energy are demonstrated and described. The discusseddata-distortive effects include presence thermal gradients, improperly designed temperature programs, incorrectly applied subtractions of the thermokinetic background, or inability of the DSC instrument to perform high cooling/heating ra

Název v anglickém jazyce

How to determine activation energy of glass transition

Popis výsledku anglicky

The article critically reviews the current methodologies for determination of apparent activation energy of structural relaxation, a dagger h*, in the glass transition range. Tool-Narayanaswamy-Moynihan phenomenological model was used to simulate data for all major types of relaxation behavior, which were consequently evaluated in terms of the tested methodologies (curve-fitting, evaluation of a dagger h* from intrinsic cycles and evaluation of a dagger h* from constant heating rate cycles). Advantagesand disadvantages of particular methodologies are demonstrated and thoroughly discussed. In addition, effects of various data-distortive effects influencing determination of glass transition activation energy are demonstrated and described. The discusseddata-distortive effects include presence thermal gradients, improperly designed temperature programs, incorrectly applied subtractions of the thermokinetic background, or inability of the DSC instrument to perform high cooling/heating ra

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CF - Fyzikální chemie a teoretická chemie

OECD FORD obor

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Projekt

<a href="/cs/project/GAP106%2F11%2F1152" target="_blank" >GAP106/11/1152: Reverzibilní krystalizace a strukturni relaxace amorfních materiálů pro záznam informace</a><br>

Návaznosti

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

Rok uplatnění

2014

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

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Svazek periodika

118

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

12

Strana od-do

1721-1732

Kód UT WoS článku

000344810300036

EID výsledku v databázi Scopus

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