Spectral Study of Effects of Aluminium Nanoparticles on Fast Reaction of Nitromethane
WU Jing-He1,2, YE Song1,2, HU Dong2, YANG Xiang-Dong1
1Institute of Atomic and Molecular Physics, Sichuan University, Chengdu 6100652National Key Laboratory for Shock Wave and Detonation Physics Research, Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang 621900
Spectral Study of Effects of Aluminium Nanoparticles on Fast Reaction of Nitromethane
1Institute of Atomic and Molecular Physics, Sichuan University, Chengdu 6100652National Key Laboratory for Shock Wave and Detonation Physics Research, Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang 621900
摘要Fast reactions between nitromethane and aluminium nanoparticles are studied using transient spectral methods. In comparison with species produced by pure nitromethane, the emergence time for species produced by nitromethane after addition of 1g of aluminium nanoparticles decreases by 46-58% and the emission intensity increases by 13-100%. The results demonstrate that aluminium nanoparticles have positive effect on accelerating the decomposition rate of nitromethane and that the explosion efficiency of nitromethane is greatly improved. Fast reactions carried out between nitromethane and aluminium nanoparticles in different environments (CO2, H2O and O2) reveal that O2 and an appropriate amount of H2O improve the explosion efficiency of nitromethane, whereas CO2 has the weakest effect on improving this parameter. The investigations provide insights into the process occurring in actual systems involving propellants and fuel--air explosives.
Abstract：Fast reactions between nitromethane and aluminium nanoparticles are studied using transient spectral methods. In comparison with species produced by pure nitromethane, the emergence time for species produced by nitromethane after addition of 1g of aluminium nanoparticles decreases by 46-58% and the emission intensity increases by 13-100%. The results demonstrate that aluminium nanoparticles have positive effect on accelerating the decomposition rate of nitromethane and that the explosion efficiency of nitromethane is greatly improved. Fast reactions carried out between nitromethane and aluminium nanoparticles in different environments (CO2, H2O and O2) reveal that O2 and an appropriate amount of H2O improve the explosion efficiency of nitromethane, whereas CO2 has the weakest effect on improving this parameter. The investigations provide insights into the process occurring in actual systems involving propellants and fuel--air explosives.
WU Jing-He;YE Song;HU Dong;YANG Xiang-Dong. Spectral Study of Effects of Aluminium Nanoparticles on Fast Reaction of Nitromethane[J]. 中国物理快报, 2008, 25(3): 1138-1141.
WU Jing-He, YE Song, HU Dong, YANG Xiang-Dong. Spectral Study of Effects of Aluminium Nanoparticles on Fast Reaction of Nitromethane. Chin. Phys. Lett., 2008, 25(3): 1138-1141.
[1] Kelzenberg S, Eckl W and Weiser V 1999 PropellantsExplos. Pyrotech. 24 189 [2] Yan Z X , Wu J H and Hu D 2006 Chin. Phys. Lett. 23 217 [3] Brousseau P and Anderson C 2002 Propellants Explos.Pyrotech. 27 300 [4] Bazyn T, Krier H and Glumac N 2006 Combust. Flame 145 703 [5] Glarborg P, Bendtsen A B and Miller J A 1999 Int. J.Chem. Kinetics 31 591 [6] Dieke G H and Crosswhite H M 1967 Handbook ofSpectroscopy (Baltimore, MD: The Johns Hopkins University Press) [7] Beckstead M and Pudduppakkam K 2005 Combust. Explos.Shock Waves 41 622 [8] Zhu J and Li S F 1999 Propellants Explos. Pyrotech. 24 224 [9] Liu L L, Li S F, Li M and Yang Y 2004 PropellantsExplos. Pyrotech. 29 34
2008, Vol. 25 
