engleski

Resolution of overlapping peaks and the determination of kinetic parameters for the crystallization of multicomponent system from DTA or DSC curves: I. Non-isothermal kinetics

A new computer program has been created to separate overlapping exothermic and endothermic DTA (DSC) effects, obtained under non-isothermal conditions, occuring due to a simultaneous nucleation and growth or more growth processes, and also to calculate the kinetic parameters of the proces represented by the each peak. A new graphical method for the initialization of the required parameters and the refinment of the initial values by the least squares method is presented. The procedure for the determination of the kinetic parameters from DTA data is demonstrated on a model system and on kinetic analyis of mullite formation from diphasic gel.

computer program ; crystallization kinetics ; differential thermal analysis ; mullite ; overlapping

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