Combustion and detonation of mechanoactivated aluminum–potassium perchlorate mixtures

A. Yu Dolgoborodov, B. S. Ermolaev, A. A. Shevchenko, V. A. Teselkin, V. G. Kirilenko, K. A. Monogarov, A. N. Streletskii

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Abstract

The properties of mechanoactivated energetic composites based on aluminum and potassium perchlorate with high rates of self-sustaining chemical reactions under conditions of combustion and detonation are examined. The results of experiments on studying the combustion, deflagration-to-detonation transition, and sensitivity to friction of these composites are reported. The activation duration and aluminum content in the mixture are varied. The experiments on the deflagration-to-detonation transition of mechanoactivated composites are supplemented by the results of numerical simulations. The calculations and experiments on the dynamics of development of a blast wave and on the steady detonation velocity are found to be in qualitative agreement. It is shown that the velocity of the observed process is significantly (by about 40%) lower than the normal detonation velocity obtained from thermodynamic calculations.

Original languageEnglish
Pages (from-to)615-624
Number of pages10
JournalRussian Journal of Physical Chemistry B
Volume9
Issue number4
DOIs
Publication statusPublished - 30 Jul 2015
Externally publishedYes

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Keywords

  • aluminum
  • deflagration-to-detonation transition
  • mechanoactivation
  • potassium perchlorate

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry

Cite this

Dolgoborodov, A. Y., Ermolaev, B. S., Shevchenko, A. A., Teselkin, V. A., Kirilenko, V. G., Monogarov, K. A., & Streletskii, A. N. (2015). Combustion and detonation of mechanoactivated aluminum–potassium perchlorate mixtures. Russian Journal of Physical Chemistry B, 9(4), 615-624. https://doi.org/10.1134/S1990793115040041