A mechanistic perspective of atmospheric oxygen sensitivity on composite energetic material reactions

作者：Farley Cory W; Pantoya Michelle L^*; Levitas Valery I

来源：Combustion and Flame, 2014, 161(4): 1131-1134.

DOI：10.1016/j.combustflame.2013.10.018

• Aluminum combustion
• Melt dispersion mechanism
• Flame speeds
• Energy propagation
• Diffusion oxidation

Solid energetic composites have been used and studied in standard air environments, yet the contribution of atmospheric oxygen to reactive material combustion has not been investigated. This study experimentally examines the effect of atmospheric oxygen concentration (4% or 93% oxygen) on energy propagation of nanometric aluminum with copper oxide (Al + CuO), iron oxide (Al + Fe2O3), calcium iodate (Al + Ca(IO3)(2)), and iodine pentoxide (1205). In all cases energy propagation was examined in terms of flame speed and higher in the high oxygen environments. However, the convectively dominant reactions showed a smaller percent increase in flame speed mainly attributed to the reaction mechanism.

• 出版日期2014-4