Combustion and Thermal Decomposition of Ammonium Perchlorate–Aluminium Composite Pellets: Mechanism for Aluminium Participation

Seetharamacharyulu, D; Verneker, VR Pai; Mallya, R. M.; Kumar, R. N.

doi:10.1080/00102208108547514

Cited by 8 publications

(2 citation statements)

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“…The T HTD of AP can be reduced by Al particles. 16 When the Al content in the Al/AP is 10%, the T HTD is reduced by 48 °C. The heat release of AP is only 0.436 kJ•g −1 , while with the addition of Al nanoparticles (AlNs), the heat release of the Al/AP can reach 0.903 kJ•g −1 , which is much higher than that of AP.…”

Section: Introductionmentioning

confidence: 99%

“…Aluminum (Al) particles are widely used as metal additives in CSPs due to their high energy density, low cost, and environmental friendliness. , There are interactions between AP and Al during the combustion process of CSPs. The T HTD of AP can be reduced by Al particles . When the Al content in the Al/AP is 10%, the T HTD is reduced by 48 °C.…”

Section: Introductionmentioning

confidence: 99%

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Mechanism of Interaction between Ammonium Perchlorate and Aluminum

Yan,

Xu,

Nie

et al. 2023

J. Phys. Chem. A

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There is an interactive effect between ammonium perchlorate (AP) and aluminum (Al) powder during the combustion process of composite solid propellants, but the mechanism of this effect is still lacking. Using quantum chemical methods, we investigated this mechanism from a molecular perspective. The interaction process between Al and AP was analyzed by comparing the chemical bond changes between the atoms during the reaction process of the Al/AP system and the AP unimolecular thermal decomposition system. The results show that Al atoms alter the reaction mechanism of AP thermal decomposition, significantly decreasing the activation energy of AP decomposition at high temperature but increasing that at low temperature. Meanwhile, the temperature-dependent rate constant of each basic reaction was calculated by transition state theory. The rate constants increase with temperature. Under high temperature and pressure, Al can increase the high-temperature decomposition rate of AP by up to 1–3 orders of magnitude.

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Section: Introductionmentioning

confidence: 99%