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Vol. 27 No. 5 (2015): Vol 27 Issue 5

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Condensed Phase Species Composition for Aluminum Particles Combustion in Nitrocellulose

https://doi.org/10.14233/ajchem.2015.17397
H.B. Pei
State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, P.R. China
J.X. Nie
State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, P.R. China
Q.J. Jiao
State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, P.R. China

Corresponding Author(s) : H.B. Pei

hongbo2751@sina.com

Asian Journal of Chemistry, Vol. 27 No. 5 (2015): Vol 27 Issue 5

Abstract

The mixtures of nitrocellulose and aluminum with different particle size were ignited in a hermetic steel chamber. The pressures of combustion products were measured and the condensed products were recovered. The morphology and surface atomic distribution of the condensed products was studied with scanning electron microscopy and energy dispersive spectroscopy. The crystal structure and composition of condensed products were analyzed by X-ray diffraction. The results show that the products particles are still spherical shape whose size is roughly identical to that of the initial particles for micro aluminum particles. An analysis of condensed products morphology indicates that the reaction of aluminum proceeds on the particle surface. The amount of reacted aluminum importantly depends on the particles size of aluminum. Non-reacted aluminum, Al2O3 and Al2OC were founded in condensed products. g-Al2O3 is present in all samples and a-Al2O3 is found only in the sample containing nano Al. The mass fraction of Al2OC varied ranged from 2 to 27 % with the Al particles size changed in condensed products.

Keywords

Combustion product Morphology Propellant Al2OC
Pei, H., Nie, J., & Jiao, Q. (2015). Condensed Phase Species Composition for Aluminum Particles Combustion in Nitrocellulose. Asian Journal of Chemistry, 27(5), 1635–1640. https://doi.org/10.14233/ajchem.2015.17397
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