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Agglomeration Evolution of Nano-Particles Aluminium in Normal Incident |
| YAN Zheng-Xin1,2;WU Jing-He1,2;HU Dong2;YANG Xiang-Dong |
| 1Institute of Atomic and Molecular Physics, Sichuan University, Chengdu 610065
2National Key Laboratory for Shock Wave and Detonation Physics Research, Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang 621900 |
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| Cite this article: |
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YAN Zheng-Xin, WU Jing-He, HU Dong et al 2006 Chin. Phys. Lett. 23 217-219 |
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Abstract Agglomeration behaviour of nano-particle aluminium (nano-Al) in normal incident shock waves is investigated by our devised shock tube technology. The morphology, particle size, agglomeration process of nano-Al studied in normal incident shock waves are comprehensible evaluated by x-ray diffraction, transmission electron microscopy and scanning electron microscopy. The above-mentioned techniques show that the high strength and temperature of incident shock wave give a chance for activity of nano-Al in the reactions and decrease the agglomeration, and the morphology of agglomeration is affected by the temperature of nano-Al reaction region. The dynamic temperature of reaction region determined by the intensity ratio of two AlO bands is 2602K, which is closer to nano-Al actual reacted temperature than the determined temperature of ordinary methods (i.e. six channel instantaneous optical pyrometer; plank black body radiation law, etc.)
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| Keywords:
81.07.Wx
81.40.Vw
34.80.Dp
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Published: 01 January 2006
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