Critical parameters of a micro-hotspot model of the laser-pulse initiation of the explosive decomposition of energetic materials
- Authors: Kalenskii A.V.1, Zvekov A.A.2, Galkina E.V.1, Nurmuhametov D.R.2
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Affiliations:
- Kemerovo state University
- Federal Research Center of Coal and Coal Chemistry (Institute of Coal Chemistry and Material Science), Siberian Branch
- Issue: Vol 11, No 5 (2017)
- Pages: 820-827
- Section: Combustion, Explosion, and Shock Waves
- URL: https://journals.rcsi.science/1990-7931/article/view/199642
- DOI: https://doi.org/10.1134/S1990793117050050
- ID: 199642
Cite item
Abstract
The work continues a series of studies of the micro-hotspot model a thermal explosion. The dependences of the critical energy fluence and the temperature of the reaction kernel in pentaerythritol tetranitrate (PETN) on the radius of aluminum nanoparticles at half-maximum pulse durations of 10 to 150 ns are calculated. For each pulse duration, there is an optimal nanoparticle radius at which the critical energy fluence is minimal. The dependences of these parameters on the pulse duration are derived. It is shown that there is a universal relationship, independent of the pulse duration, between the normalized critical energy fluence and the nanoparticle radius.
About the authors
A. V. Kalenskii
Kemerovo state University
Author for correspondence.
Email: kriger@kemsu.ru
Russian Federation, Kemerovo, 650000
A. A. Zvekov
Federal Research Center of Coal and Coal Chemistry (Institute of Coal Chemistry and Material Science), Siberian Branch
Email: kriger@kemsu.ru
Russian Federation, Kemerovo, 650000
E. V. Galkina
Kemerovo state University
Email: kriger@kemsu.ru
Russian Federation, Kemerovo, 650000
D. R. Nurmuhametov
Federal Research Center of Coal and Coal Chemistry (Institute of Coal Chemistry and Material Science), Siberian Branch
Email: kriger@kemsu.ru
Russian Federation, Kemerovo, 650000