铝粉点火微观机理的光谱研究

胡栋; 叶松; 吴旌贺; 炎正馨; 李萍; 孙珠妹

doi:10.11858/gywlxb.2006.03.003

铝粉点火微观机理的光谱研究

doi: 10.11858/gywlxb.2006.03.003

胡栋^1,2,,
叶松²,
吴旌贺²,
炎正馨²,
李萍²,
孙珠妹^1,2

1.
中国工程物理研究院流体物理研究所冲击波物理与爆轰物理实验室，四川绵阳 621900；
2.
四川大学高温高压物理研究所，四川成都 610065

详细信息

通讯作者:
胡栋

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出版历程
- 收稿日期: 2005-06-26
- 修回日期: 2006-05-22
- 发布日期: 2006-09-05

The Spectro-Studies on Micro-Mechanism of Shock Ignition for Aluminium

1.
Laboratory for Shock Wave and Detonation Physics Research, Institute of Fluid Physics, CAEP, Mianyang 621900, China;
2.
Institute of High Temperature and High Pressure Physics, Sichuan University, Chengdu 610065, China

More Information

Corresponding author: HU Dong

摘要

摘要: 铝粉是一种含能高的材料，它被广泛地添加到含能材料中。利用3台单色谱仪和OMA谱仪等多种谱仪技术，研究了铝粉在几种不同环境下的快速反应微观特性。研究表明：铝粉冲击波点火的临界条件和铝粉的物理状态相关。微米铝粉点火的临界温度为2 100 K，它接近Al2O3的熔化温度。它表明，在空气中容易氧化的微米铝粉点火，必须使铝粉表面的氧化层熔化。在气相反应中，微米铝粉和氧的反应是主要的；和水的反应是次要的。减小微米铝粉的颗粒尺寸，可以明显提高快速反应温度。含铝复合燃料中的液体燃料反应后的铝粉才能参与反应；铝粉添加至气相反应介质后将明显提高反应温度。
- 铝粉 /
- 点火 /
- 微观机理 /
- 光谱技术
Abstract: The aluminum powder is a high energetic material. It is added into energetic materials. The results show that the critical conditions of shock ignition for micrometer-aluminum powder relate with physical behaviour for aluminum powder. The micro-behaviour of the fast reaction for micrometer-aluminum powder are studied by means of some spectrometer techniques－three monochromaters techniques and OMA spectral techniques. The critical temperature for the micrometer-aluminum powder is about 2 100 K, and it is closed to the melting temperature of Al2O3. It is show that the Al2O3 layer must be melted, if the micrometer-aluminum powder may be ignited. It is important that the reaction of micrometer-aluminum powder with oxygen. It is not important that the reaction of micrometer-aluminum powder with water. The micrometer-aluminum powder may react, after a liquid fuel in compound fuel reacts. The reaction temperature is increased when micrometer-aluminum powder is added into energetic material and the particle size of micrometer-aluminum powder is decreased .
- aluminum powder /
- ignition /
- micro-mechanism /
- spectral technique

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参考文献(12)

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