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Statements

Subject Item
n2:RIV%2F49777513%3A23640%2F14%3A43924288%21RIV15-MSM-23640___
rdf:type
skos:Concept n17:Vysledek
dcterms:description
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. 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.
dcterms:title
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 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
skos:prefLabel
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 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
skos:notation
RIV/49777513:23640/14:43924288!RIV15-MSM-23640___
n3:aktivita
n14:P
n3:aktivity
P(ED2.1.00/03.0088)
n3:cisloPeriodika
1
n3:dodaniDat
n6:2015
n3:domaciTvurceVysledku
n15:4115910 n15:7582331
n3:druhVysledku
n11:J
n3:duvernostUdaju
n9:S
n3:entitaPredkladatele
n19:predkladatel
n3:idSjednocenehoVysledku
12308
n3:idVysledku
RIV/49777513:23640/14:43924288
n3:jazykVysledku
n18:eng
n3:klicovaSlova
peak apex; maximum reaction rate; undercooling; background; equilibrium; heating/cooling; Kissinger; reaction mechanism; kinetics; Differential thermal analysis (DTA)
n3:klicoveSlovo
n4:maximum%20reaction%20rate n4:kinetics n4:peak%20apex n4:undercooling n4:Kissinger n4:equilibrium n4:Differential%20thermal%20analysis%20%28DTA%29 n4:background n4:heating%2Fcooling n4:reaction%20mechanism
n3:kodStatuVydavatele
RS - Srbská republika
n3:kontrolniKodProRIV
[E09C7C6CF6FB]
n3:nazevZdroje
Journal of Mining and Metallurgy Section B-Metallurgy
n3:obor
n12:BM
n3:pocetDomacichTvurcuVysledku
2
n3:pocetTvurcuVysledku
3
n3:projekt
n8:ED2.1.00%2F03.0088
n3:rokUplatneniVysledku
n6:2014
n3:svazekPeriodika
50
n3:tvurceVysledku
Živković, Ž. Holba, Pavel Šesták, Jaroslav
n3:wos
000335009700012
s:issn
1450-5339
s:numberOfPages
5
n5:doi
10.2298/JMMB130902006S
n16:organizacniJednotka
23640