Kissinger equation versus glass transition phenomenology

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F13%3A39896252" target="_blank" >RIV/00216275:25310/13:39896252 - isvavai.cz</a>

Výsledek na webu

<a href="http://link.springer.com/article/10.1007%2Fs10973-012-2892-3" target="_blank" >http://link.springer.com/article/10.1007%2Fs10973-012-2892-3</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s10973-012-2892-3" target="_blank" >10.1007/s10973-012-2892-3</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Kissinger equation versus glass transition phenomenology

Popis výsledku v původním jazyce

The applicability of the Kissinger equation for the evaluation of apparent activation energy corresponding to glass transition kinetics is examined. Theoretically simulated data based on the generally accepted Tool-Narayanaswamy-Moynihan model were usedto represent relevant cases of structural relaxation behavior. The values of the apparent activation energy determined by the Kissinger equation were, despite the linearity of the dependencies, in major disagreement with the original values of a dagger h(*) used for the simulation of the source data. Furthermore, a large dependence of the a dagger h (Kis) (*) evaluation (performed using the Kissinger equation) on the thermal history of the glass was found. The latter represents an unacceptable systematic error in the methodology, implying the incorrectness of the Kissinger equation usage for the evaluation of "glass transition activation energy". This study addresses the currently widespread (incorrect) usage of the Kissinger equation

Název v anglickém jazyce

Kissinger equation versus glass transition phenomenology

Popis výsledku anglicky

The applicability of the Kissinger equation for the evaluation of apparent activation energy corresponding to glass transition kinetics is examined. Theoretically simulated data based on the generally accepted Tool-Narayanaswamy-Moynihan model were usedto represent relevant cases of structural relaxation behavior. The values of the apparent activation energy determined by the Kissinger equation were, despite the linearity of the dependencies, in major disagreement with the original values of a dagger h(*) used for the simulation of the source data. Furthermore, a large dependence of the a dagger h (Kis) (*) evaluation (performed using the Kissinger equation) on the thermal history of the glass was found. The latter represents an unacceptable systematic error in the methodology, implying the incorrectness of the Kissinger equation usage for the evaluation of "glass transition activation energy". This study addresses the currently widespread (incorrect) usage of the Kissinger equation

Druh

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

CEP obor

CF - Fyzikální chemie a teoretická chemie

OECD FORD obor

—

Projekt

<a href="/cs/project/GPP106%2F10%2FP035" target="_blank" >GPP106/10/P035: Relaxační procesy v nekrystalických materiálech</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2013

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

114

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

9

Strana od-do

285-293

Kód UT WoS článku

000325075600033

EID výsledku v databázi Scopus

—