Laser Initiation of PETN with Inclusions of Aluminum Nanoparticles under Static Pressure

This paper describes the experimental measurement of thresholds of explosive decomposition of PETN with inclusions of aluminum nanoparticles (an average particle diameter of 100 nm) with a static pressure of 0–0.288 GPa applied to the samples under the action of the first harmonic of a pulsed (14 ns...

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Bibliographic Details
Published inCombustion, explosion, and shock waves Vol. 55; no. 2; pp. 237 - 243
Main Authors Aduev, B. P., Nurmukhametov, D. R., Belokurov, G. M., Zvekov, A. A., Nelyubina, N. V.
Format Journal Article
LanguageEnglish
Published Moscow Pleiades Publishing 01.03.2019
Springer Nature B.V
Subjects
Aluminum
Classical and Continuum Physics
Classical Mechanics
Control
Density
Dynamical Systems
Energy measurement
Engineering
Inclusions
Lasers
Nanoparticles
Neodymium
Neodymium lasers
Particle size
PETN
Physical Chemistry
Physics
Physics and Astronomy
Static pressure
Vibration
laser initiation
explosion
dislocation
PETN
aluminum nanoparticles
gas-dynamic unload
optoacoustics
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Summary:This paper describes the experimental measurement of thresholds of explosive decomposition of PETN with inclusions of aluminum nanoparticles (an average particle diameter of 100 nm) with a static pressure of 0–0.288 GPa applied to the samples under the action of the first harmonic of a pulsed (14 ns) neodymium laser. Amplitudes of optoacoustic signals as a function of concentration of inclusions in the samples with a fixed density of laser initiation energy are measured. There is a significant decrease in the initiation threshold, which is due to the fact that a gas-dynamic unload is blocked and the sample density increases.
ISSN:0010-5082
1573-8345
DOI:10.1134/S0010508219020138