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Particle size effect on ammonium perchlorate decomposition kinetics
作者姓名:Abdel-Wareth W  XUXu
作者单位:School of Astronautics, Beijing University of Aeronautics and Astonautice, Beijing 100191, China;School of Astronautics, Beijing University of Aeronautics and Astonautice, Beijing 100191, China
摘    要:The decomposition kinetic parameters of ammonium perchlorate (AP) having different grain size (10-390μm) were investigated through simultaneous DSC/TGA (differential scanning calorimetry/thermal gravimetric analysis) analyzer in a dynamic nitrogen atmosphere under heating rate of 40K/min.The kinetic parameters such as activation energy and pre-exponential factor were determined by the modified isoconversional method.The Brurzauer-Emmett-Teller (BET)-method was applied to measure AP specific surface areas.The results show that the higher the AP particle size the lower the determined kinetic parameters and are matched with some important literatures.

关 键 词:ammonium  perchlorate  particle  size  specific  surface  area  thermal  decomposition  thermogravimetry
收稿时间:2011/6/17 0:00:00

Particle size effect on ammonium perchlorate decomposition kinetics
Abdel-Wareth W,XUXu.Particle size effect on ammonium perchlorate decomposition kinetics[J].Journal of Aerospace Power,2012,27(5):1179-1184.
Authors:Abdel-Wareth W and XU Xu
Institution:School of Astronautics,Beijing University of Aeronautics and Astonautice, Beijing 100191, China
Abstract:The decomposition kinetic parameters of ammonium perchlorate(AP) having different grain size(10-390 μ m) were investigated through simultaneous DSC / TGA(differential scanning calorimetry / thermal gravimetric analysis) analyzer in a dynamic nitrogen atmosphere under heating rate of 40K / min.The kinetic parameters such as activation energy and pre-exponential factor were determined by the modified isoconversional method.The Brurzauer-Emmett-Teller(BET)-method was applied to measure AP specific surface areas.The results show that the higher the AP particle size the lower the determined kinetic parameters and are matched with some important literatures.
Keywords:ammonium perchlorate  particle size  specific surface area  thermal decomposition  thermogravimetry
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