Login for students

Login for employees

Publication detail

Applicability of Fraser-Suzuki function in kinetic analysis of complex crystallization processes
Year: 2013
Type of publication: článek v odborném periodiku
Name of source: Journal of Thermal Analysis and Calorimetry
Publisher name: Springer
Page from-to: 1045-1056
Titles:
Language Name Abstract Keywords
cze Aplikovatelnost Fraser-Suzuki funkce na kinetickou analýzu komplexních krystalizačních procesů Modifikovaná procedura pro dekonvoluci píků získaných pro komplexní krystalizační procesy byla představena. Metoda je založena na fitovací metodě využívající Fraser-Suzuki funkci, kde FS asymetrický parametr koreluje s hodnotou JMA kinetického parametru m. Korelace byla ověřena na větším množství teoreticky simulovaných JMA křivek. dekonvoluce; kinetika krystalizace; JMA model; Fraser-Suzuki funkce
eng Applicability of Fraser-Suzuki function in kinetic analysis of complex crystallization processes A modified peak-deconvolution procedure for complex crystallization processes was introduced. The method is based on the constrained curve-fitting technique using the Fraser-Suzuki (FS) function, where the FS asymmetry parameter a (3) correlates with the value of the Johnson-Mehl-Avrami (JMA) kinetic parameter m. The correlation was verified for an extensive number of theoretically simulated JMA curves; in addition, the dependencies of the a (3) parameter on other kinetic variables (E, A, q (+)) were quantified. The suggested deconvolution procedure was tested on two glassy systems with different overlay degree of the involved overlapping surface and bulk crystallization processes. In both cases, the kinetic analysis of deconvoluted data provided reasonable, consistent and accurate results. However, certain level of knowledge and experience was needed in order to correctly recognize and consequently account for all deviations from the theoretical behavior caused by thermal gradients or imperfections of the data acquisition process. As the input data for the fitting procedure can be in any form equivalent to the d alpha/dT temperature dependence, the method seems to be highly universal and may be applied to data obtained by various TA techniques. deconvolution; crystallization kinetics; JMA model; Fraser-Suzuki function

Departments

Other Parts

Map

en.mapy.cz

Services

Popular Links

© 2023 University of Pardubice, Studentská 95, 532 10 Pardubice 2
Phone: +420 466 036 111, 466 036 112, 466 036 113
Webmaster, RSS
Data box ID: f5vj9hu
Accessibility Statement
CC BY-NC-ND 4.0Creative CommonsAttributionNonCommercialNoDerivatives