caa a22 4500 463192109 CHVBK 20180406164912.0 cr unu---uuuuu 170326e20070101xx s 000 0 eng 10.1007/s10973-006-8283-x doi (NATIONALLICENCE)springer-10.1007/s10973-006-8283-x Evaluatingthe logistic mixture model on real and simulated TG curves [Elektronische Daten] [F. Barbadillo, A. Fuentes, S. Naya, R. Cao, J. Mier, R. Artiaga] The aim of this paper is to evaluate and explain the fitting of dynamic TG curves by a mixture of logistic functions. This model assumes that more than one physical process may be involved in each mass loss step and that each physical process may extend along all the experiment. One of the main sources of difficulties in TG is that, very often, different stages of decomposition substantially overlap each other. Several real and simulated TG curves were analysed in this paper. An optimal fitting of the TG curves was obtained by a mixture of logistics. In many cases the optimal fitting reproduces accurately the TG curve. Accordingly, the TG curve can be understood as a sum of parallel reactions, where each single reaction is represented by one or a small number of logistic components. Additionally, making use of the analytical derivative of the fitting, a mixture of Arrhenius reaction order equations was applied to the same curves. In all the cases, the fitting obtained with the mixture of Arrhenius was worse than the obtained with the mixture of logistics. A software was developed to automatically perform these tasks. The physical meaning of the fitting was explained. Springer-Verlag, 2007 Arrhenius nationallicence logistic mixture nationallicence TG nationallicence Barbadillo F. Department of Industrial Engineering II, Escola Politécnica Superior, Universidade da Coruña, 15403, Ferrol, Spain aut Fuentes A. Department of Industrial Engineering II, Escola Politécnica Superior, Universidade da Coruña, 15403, Ferrol, Spain aut Naya S. Department of Mathematics, Faculty of Computer Sciences, Universidade da Coruña, 15071, A Coruña, Spain aut Cao R. Department of Mathematics, Faculty of Computer Sciences, Universidade da Coruña, 15071, A Coruña, Spain aut Mier J. Department of Industrial Engineering II, Escola Politécnica Superior, Universidade da Coruña, 15403, Ferrol, Spain aut Artiaga R. Department of Industrial Engineering II, Escola Politécnica Superior, Universidade da Coruña, 15403, Ferrol, Spain aut Journal of Thermal Analysis and Calorimetry Kluwer Academic Publishers 87/1(2007-01-01), 223-227 1388-6150 87:1<223 2007 87 10973 https://doi.org/10.1007/s10973-006-8283-x text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10973-006-8283-x text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Barbadillo F. Department of Industrial Engineering II, Escola Politécnica Superior, Universidade da Coruña, 15403, Ferrol, Spain aut NATIONALLICENCE 700 1- Fuentes A. Department of Industrial Engineering II, Escola Politécnica Superior, Universidade da Coruña, 15403, Ferrol, Spain aut NATIONALLICENCE 700 1- Naya S. Department of Mathematics, Faculty of Computer Sciences, Universidade da Coruña, 15071, A Coruña, Spain aut NATIONALLICENCE 700 1- Cao R. Department of Mathematics, Faculty of Computer Sciences, Universidade da Coruña, 15071, A Coruña, Spain aut NATIONALLICENCE 700 1- Mier J. Department of Industrial Engineering II, Escola Politécnica Superior, Universidade da Coruña, 15403, Ferrol, Spain aut NATIONALLICENCE 700 1- Artiaga R. Department of Industrial Engineering II, Escola Politécnica Superior, Universidade da Coruña, 15403, Ferrol, Spain aut NATIONALLICENCE 773 0- Journal of Thermal Analysis and Calorimetry Kluwer Academic Publishers 87/1(2007-01-01), 223-227 1388-6150 87:1<223 2007 87 10973 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer