铝粉快速反应光谱的研究

Study on the Emission Spectra from Fast Reaction of Aluminum Powder

1.
Laboratory of High Temperature Gas Dynamics, Institute of Mechanics, Chinese Academy of Sciences, Beijing 100080, China;
2.
Institute of Applied Physics, Chengdu University of Science and Technology, Chengdu 610065, China;
3.
Laboratory for Shock Wave and Detonation Physics Research, Southwest Institude of Fluid Physics, Chengdu 610003, China

摘要: 使用光学多道分析仪（OMA）详细收集了氢氧气体爆炸产物激励下，两种不同粒度的铝粉在不同氧含量条件下快速反应的低分辨和高分辨光谱。实验结果表明在240~850 nm的光谱范围内的辐射以连续辐射为主，并有较弱的铝原子线和AlO的B2+X2+带光谱。
- 铝粉 /
- 发射光谱 /
- 粒度 /
- 氧含量
Abstract: Optical multichannel analyzer (OMA) was used to investigate the emission spectra from the fast reaction of aluminum powders driven by hydrogen-oxygen detonation in shock tube. The spectra from the reactions of two sizes of aluminum powders throughout of the 240～850 nm wavelength region has been determined experimentally with a resolution of 0.6 nm at various pressures. Higher resolution (0.071 nm resolution) spectroscopic were also made in several region of interest in the 240～850 nm wavelength region. The spectra measurements in this study were dominated by continuum radiation. The intense blue-green emission of the AlO B2+X2+ transition was also present.
- aluminum powder /
- emission spectra /
- grain size /
- oxygen