Abstract
Agglomeration behaviour of nano-particle aluminium(nano-Al) in normal incident shock waves is investigated by our devisedshock tube technology. The morphology, particle size, agglomerationprocess of nano-Al studied in normal incident shock waves are comprehensibleevaluated by x-ray diffraction, transmission electron microscopy andscanning electron microscopy. The above-mentioned techniques show thatthe high strength and temperature of incident shock wave give a chancefor activity of nano-Al in the reactions and decrease theagglomeration, and the morphology of agglomeration is affected by thetemperature of nano-Al reaction region. The dynamic temperature ofreaction region determined by the intensity ratio of two AlO bands is2602 K, which is closer to nano-Al actual reacted temperature than thedetermined temperature of ordinary methods (i.e. six channelinstantaneous optical pyrometer; plank black body radiation law, etc.)
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