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

Cory W. Farley, Michelle L. Pantoya, Valery I. Levitas

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

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 (I2O5). 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.

Original languageEnglish
Pages (from-to)1131-1134
Number of pages4
JournalCombustion and Flame
Volume161
Issue number4
DOIs
StatePublished - Apr 2014

Keywords

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

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