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Shock initiation of detonation in a mixture of gelled nitromethane with microballoons
- Authors: Shakula M.Y.1,2, Utkin A.V.1, Mochalova V.M.1, Lavrov V.V.1, Savchenko A.V.1, Vilkov V.V.1,3
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Affiliations:
- Federal Research Center of Problems of Chemical Physics and Medicinal Chemistry
- Moscow Institute of Physics and Technology
- Lomonosov Moscow State University
- Issue: Vol 44, No 8 (2025)
- Pages: 87-96
- Section: Combustion, explosion and shock waves
- URL: https://journals.rcsi.science/0207-401X/article/view/305401
- DOI: https://doi.org/10.31857/S0207401X25080098
- ID: 305401
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Abstract
Using a multichannel laser interferometer, a series of experiments with recording of particle velocity profiles have been carried out to determine the dynamics of shock initiation of detonation in the mixtures of nitromethane with microballoons, which are heterogeneous explosives with a controlled charge structure. It is shown that the addition of 5–8 wt.% microballoons to nitromethane reduces the shock wave amplitude required to initiate detonation by almost an order of magnitude. At 8 wt.% of microballoons, depending on the initiation conditions, the realization of both steady Chapman-Jouguet detonation and weak detonation is observed.
About the authors
M. Y. Shakula
Federal Research Center of Problems of Chemical Physics and Medicinal Chemistry; Moscow Institute of Physics and Technology
Email: utkin@icp.ac.ru
Chernogolovka, Moscow region, Russia; Dolgoprudnyy, Moscow region, Russia
A. V. Utkin
Federal Research Center of Problems of Chemical Physics and Medicinal Chemistry
Email: utkin@icp.ac.ru
Chernogolovka, Moscow region, Russia
V. M. Mochalova
Federal Research Center of Problems of Chemical Physics and Medicinal Chemistry
Email: utkin@icp.ac.ru
Chernogolovka, Moscow region, Russia
V. V. Lavrov
Federal Research Center of Problems of Chemical Physics and Medicinal Chemistry
Email: utkin@icp.ac.ru
Chernogolovka, Moscow region, Russia
A. V. Savchenko
Federal Research Center of Problems of Chemical Physics and Medicinal Chemistry
Email: utkin@icp.ac.ru
Chernogolovka, Moscow region, Russia
V. V. Vilkov
Federal Research Center of Problems of Chemical Physics and Medicinal Chemistry; Lomonosov Moscow State University
Author for correspondence.
Email: utkin@icp.ac.ru
Chernogolovka, Moscow region, Russia; Moscow, Russia
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