| Spectral Study of Effects of Aluminium Nanoparticles on Fast Reaction of Nitromethane |
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| 作者姓名： | 吴旌贺 叶松 胡栋 杨向东 |
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| 作者单位： | [1]Institute of Atomic and Molecular Physics, Sichuan University, Chengdu 610065 [2]National Key Laboratory for Shock Wave and Detonation Physics Research, Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang 621900 |
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| 基金项目： | Supported by the National Natural Science Foundation of China under Grant No 10672150, and National Key Laboratory Fund for Shock Wave and Detonation Physics Research. |
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| 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 1 g 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 efficieney of nitrornethane, 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.
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| 关 键 词： | 光谱学 铝元素 应力 硝基甲烷 |
| 收稿时间： | 2007-12-12 |
Spectral Study of Effects of Aluminium Nanoparticles on Fast Reaction of Nitromethane |
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| WU Jing-He,YE Song,HU Dong,YANG Xiang-Dong.Spectral Study of Effects of Aluminium Nanoparticles on Fast Reaction of Nitromethane[J].Chinese Physics Letters,2008,25(3):1138-1141. |
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| Authors: | WU Jing-He YE Song HU Dong YANG Xiang-Dong |
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| Institution: | Institute of Atomic and Molecular Physics, Sichuan University, Chengdu 610065National Key Laboratory for Shock Wave and Detonation Physics Research, Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang 621900 |
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| 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 processoccurring in actual systems involving propellants and fuel--air explosives. |
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| Keywords: | 81 07 Wx 33 20 Kf 47 40 Nm |
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