NDLI: Kinetic study of ignition of Mg/NaNO$_{3}$ pyrotechnic using non-isothermal TG/DSC technique

Content Provider	Springer Nature Link
Author	Pouretedal, H. R. Ravanbod, M.
Copyright Year	2014
Abstract	The non-isothermal TG/DSC technique has been used to study the kinetic triplet of ignition reaction of Mg/NaNO$_{3}$ pyrotechnic under nitrogen atmosphere at different heating rates (5, 10, 15, and 20 °C min$^{−1}$). The TG/DSC results showed that the mass gain after ignition increased and the heat of ignition reaction decreased with increasing heating rate, indicating that the reaction between Mg and NaNO$_{3}$ was not complete during the ignition process. The activation energy (E $_{a}$) was calculated using Starink model-free method. The pre-exponential factor (A) and kinetic model function were determined by means of the compensation effect and the selected model was confirmed by the nonlinear model fitting method. The average values of E $_{a}$ and logA for the ignition reaction of Mg/NaNO$_{3}$ were found to be 148.46 ± 3.37 kJ mol$^{−1}$ and 10.04 min$^{−1}$, respectively. The model fitting method proved that the ignition reaction of Mg/NaNO$_{3}$ pyrotechnic follows the mechanism of A$_{4}$ (g(α) = [−ln(1−α)]$^{1/4}$) as a nucleation reaction model.
Starting Page	2281
Ending Page	2288
Page Count	8
File Format	PDF
ISSN	13886150
Journal	Journal of thermal analysis
Volume Number	119
Issue Number	3
e-ISSN	15882926
Language	English
Publisher	Springer Netherlands
Publisher Date	2014-12-24
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Pyrotechnic Thermal ignition Non-isothermal Kinetic triplet Physical Chemistry Analytical Chemistry Polymer Sciences Inorganic Chemistry Measurement Science and Instrumentation
Content Type	Text
Resource Type	Article
Subject	Physical and Theoretical Chemistry Condensed Matter Physics

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