DOUBTS ON KISSINGER'S METHOD OF KINETIC EVALUATION BASED ON SEVERAL CONCEPTUAL MODELS SHOWING THE DIFFERENCE BETWEEN THE MAXIMUM OF REACTION RATE AND THE EXTREME OF A DTA PEAK

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23640%2F14%3A43924288" target="_blank" >RIV/49777513:23640/14:43924288 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.2298/JMMB130902006S" target="_blank" >http://dx.doi.org/10.2298/JMMB130902006S</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.2298/JMMB130902006S" target="_blank" >10.2298/JMMB130902006S</a>

Jazyk výsledku

angličtina

Název v původním jazyce

DOUBTS ON KISSINGER'S METHOD OF KINETIC EVALUATION BASED ON SEVERAL CONCEPTUAL MODELS SHOWING THE DIFFERENCE BETWEEN THE MAXIMUM OF REACTION RATE AND THE EXTREME OF A DTA PEAK

Popis výsledku v původním jazyce

The famous Kissinger's kinetic evaluation method (Anal. Chem. 1957) is examined with respect to the feasible impact of the individual quantities and assumptions involved, namely the model of reaction mechanism, f(alpha) (with the iso- and nonisothermal degrees of conversion, alpha and lamba) the rate constant, k(T) (and associated activation energy, E), heating/cooling rate, beta (supplementing additional thermodynamic term for the melt undercooling, Delta T) and above all, the association of the characteristic temperature, Tm , with the DTA peak apex. It is shown that the Kissinger's equation, in contrary to the results of Vold (Anal. Chem. 1949), is omitting the term of heat inertia arising from the true balance of heat fluxes. The absence of this term skews the evaluated values of activation energies.

Název v anglickém jazyce

DOUBTS ON KISSINGER'S METHOD OF KINETIC EVALUATION BASED ON SEVERAL CONCEPTUAL MODELS SHOWING THE DIFFERENCE BETWEEN THE MAXIMUM OF REACTION RATE AND THE EXTREME OF A DTA PEAK

Popis výsledku anglicky

The famous Kissinger's kinetic evaluation method (Anal. Chem. 1957) is examined with respect to the feasible impact of the individual quantities and assumptions involved, namely the model of reaction mechanism, f(alpha) (with the iso- and nonisothermal degrees of conversion, alpha and lamba) the rate constant, k(T) (and associated activation energy, E), heating/cooling rate, beta (supplementing additional thermodynamic term for the melt undercooling, Delta T) and above all, the association of the characteristic temperature, Tm , with the DTA peak apex. It is shown that the Kissinger's equation, in contrary to the results of Vold (Anal. Chem. 1949), is omitting the term of heat inertia arising from the true balance of heat fluxes. The absence of this term skews the evaluated values of activation energies.

Druh

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

CEP obor

BM - Fyzika pevných látek a magnetismus

OECD FORD obor

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Projekt

<a href="/cs/project/ED2.1.00%2F03.0088" target="_blank" >ED2.1.00/03.0088: Centrum nových technologií a materiálů (CENTEM)</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 Mining and Metallurgy Section B-Metallurgy

ISSN

1450-5339

e-ISSN

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Svazek periodika

50

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

RS - Srbská republika

Počet stran výsledku

5

Strana od-do

77-81

Kód UT WoS článku

000335009700012

EID výsledku v databázi Scopus

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