Journal ArticleDOI
Comparison of methods concerning the selection of a function describing the thermal decomposition of solids
C. Rózycki,M. Maciejewski +1 more
TLDR
In this paper, the authors used the weighted least-squares method with the equation g(α) = kt + b and using criteria based on the minimization of the difference between α exp and α calc.About:
This article is published in Thermochimica Acta.The article was published on 1985-11-20. It has received 34 citations till now.read more
Citations
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Journal ArticleDOI
How (UN)reliable are kinetic data of reversible solid-state decomposition processes?
Marek Maciejewski,Armin Reller +1 more
TL;DR: In this paper, the authors consider the effect of the partial pressure of gaseous products on the course of a solid-state decomposition, i.e., the exclusion of the pressure dependence of any experimentally and mathematically determined kinetic equation, leads to unreliable kinetic and mechanistic data.
Journal ArticleDOI
Thermal transformations of vaterite and calcite
TL;DR: The polymorphic transition and the thermal decomposition of vaterite are characterized in this paper, and the effect of the morphology of the parent vaterites on the polymorphic and thermal properties of ex-vaterite is discussed.
Journal ArticleDOI
Different kinetic equations analysis
TL;DR: In this article, a software is described enabling kinetic analysis under non-isothermal or isothermal conditions from DSC, or from TG data, with thirteen methods of kinetic analysis, three for isothermal analysis and two for TG, with eight different functions for the choice of the proper mechanism for each of them.
Journal ArticleDOI
Thermal analysis and kinetic concepts of solid-state reactions
TL;DR: In this article, the main problems discussed are: a) the proper mathematical procedure in the currently used kinetic methods, b) the usefulness of the kinetic parameters calculated in the ordinary way for describing the kinetic properties of the compounds, and c) the correlation between the real physical phenomena occurring during decomposition and the formal kinetic models.
Journal ArticleDOI
Thermal decomposition kinetics of 2-furaldehyde thiosemicarbazone complexes of cadmium(II) and mercury(II)
TL;DR: In this paper, a non-isothermal kinetic investigation of cadmium and mercury with 2-furaldehyde thiosemicarbazone was performed in air using TG, DTG and DTA.
References
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Book
Linear regression analysis
TL;DR: In this paper, the authors take into serious consideration the further development of regression computer programs that are efficient, accurate, and considered an important part of statistical research, and provide up-to-date accounts of computational methods and algorithms currently in use without getting entrenched in minor computing details.
Journal ArticleDOI
Rigorous Least Squares Adjustment: Applications to Some Non-linear Equations, II
TL;DR: The main purpose of as mentioned in this paper is to apply the general theory of least squares adjustment to problems in physical chemistry, and apply it to the problem of least square adjustment in the setting of physical chemistry.
Journal ArticleDOI
Thermal decomposition reactions of solids controlled by diffusion and phase-boundary processes: possible misinterpretation of the mechanism from thermogravimetric data
José M. Criado,Julián Morales +1 more
TL;DR: In this paper, a comparative study of phase-boundary and diffusion-controlled reactions has been carried out using thermogravimetric data, and the results reported support the hypothesis that a single TG diagram does not allow the determination of whether a solid decomposition reaction is controlled by a diffusion mechanism or governed by the movement of an interface coming from a nucleation process.
Journal ArticleDOI
The distinguishability of selected kinetic models for isothermal solid-state reactions
TL;DR: In this paper, data generated from selected model expressions for solid-state kinetics have been analysed in terms of expressions of closely-related form to test distinguishability of the models on which the expressions are based.
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The Application of Thermoanalytical Techniques to Reaction Kinetics: The Thermogravimetric Evaluation of the Kinetics of the Decomposition of Calcium Oxalate Monohydrate
Eli S. Freeman,Benjamin Carroll +1 more