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 language | English |
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Pages (from-to) | 615-624 |
Number of pages | 10 |
Journal | Russian Journal of Physical Chemistry B |
Volume | 9 |
Issue number | 4 |
DOIs | |
Publication status | Published - 30 Jul 2015 |
Externally published | Yes |
Keywords
- aluminum
- deflagration-to-detonation transition
- mechanoactivation
- potassium perchlorate
ASJC Scopus subject areas
- Physical and Theoretical Chemistry