Abstract
The oxidation mechanism of aluminum powder particles was studied by simultaneous TG–DTA analysis (under air atmosphere) at different heating rates (10, 20 and 30 °C/min) and from an ambient temperature up to 1,400 °C. Also, the rate of oxidation reaction (rate of weight gain; RTG) was obtained by the differentiation of weight gain (TGG) curve. Additionally, SEM and X-ray diffraction analysis (XRD) studies were performed on each of the above samples for their structural and phase studies. The results obtained from TG–DTA and RTG curves; microstructure and phase analysis studies indicated that the oxidation of aluminum powders occurred during five stages. On the other hand, according to the results obtained from XRD and TGG curves, aluminum particles after the thermal analysis test, even heated up to 1,400 °C, were not entirely oxidized (i.e. less than 10 %).
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Hasani, S., Panjepour, M. & Shamanian, M. The Oxidation Mechanism of Pure Aluminum Powder Particles. Oxid Met 78, 179–195 (2012). https://doi.org/10.1007/s11085-012-9299-1
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DOI: https://doi.org/10.1007/s11085-012-9299-1