THERMAL SCIENCE

International Scientific Journal

Vladimir F. Tolkachev

,

Oksana V. Ivanova

,

Sergey A. Zelepugin

INITIATION AND DEVELOPMENT OF EXOTHERMIC REACTIONS DURING SOLID-PHASE SYNTHESIS UNDER EXPLOSIVE LOADING

ABSTRACT
The previous numerical and experimental studies of the solid-phase synthesis of porous reactive mixtures (Al-S and Al-Tf) placed into cylindrical ampoules subjected to explosive detonation revealed the sharp increase in temperatures and pressures. The results have shown that high heat release and high increase in pressure due to exothermic reactions in the mixture, on the one hand, promote the faster development of reactions and, on the other hand, contribute to the formation of a gas phase that, in turns, may lead to the damage or even fracture of ampoules. This problem is solved by adding an inert porous aluminum layer to the bottom part of the mixture. Computations are carried out using the model of a multicomponent medium and the finite element method. Numerical simulation has shown that in this case the fracture of cylindrical ampoules is not observed.
KEYWORDS
solid-phase synthesis, exothermic reaction, explosive loading, cylindrical ampoule, fracture
PAPER SUBMITTED: 2018-09-03
PAPER REVISED: 2018-10-04
PAPER ACCEPTED: 2018-11-01
PUBLISHED ONLINE: 2019-05-05
DOI REFERENCE: https://doi.org/10.2298/TSCI19S2505T
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2019, VOLUME 23, ISSUE Supplement 2, PAGES [S505 - S511]
REFERENCES
  1. Batsanov, S. S., Effects of Explosions on Materials, Springer-Verlag, New York, USA, 1994
  2. Zelepugin, S. A., et al., Destruction of Cylinder Ampoules with Solid Phase Reactive Mixtures under Explosive Loading, Letters on materials, 5 (2015), 4, pp. 468-472
  3. Ivanova, O. V., Zelepugin, S. A. Explosive Solid-State Synthesis in the Al-S System: Influence of Dis-persity and Duration of Shock Loading, International Journal of Self-Propagating High-Temperature Synthesis, 23 (2014), 4, pp. 192-197
  4. Zelepugin, S. A., et al., Problems of Solid-Phase Synthesis in Cylindrical Ampoules under Explosive Loading, IOP Conf. Series: Materials Science and Engineering, 127 (2017), 1, 012057
  5. Dolgoborodov, A. Yu., Mechanically Activated Oxidizer-Fuel Energetic Composites, Combustion, Ex-plosion, and Shock Waves, 51 (2015), 1, pp. 86-99
  6. Jette, F.-X., et al., In-Situ Measurements of the Onset of Bulk Exothermicity in Shock Initiation of Reac-tive Powder Mixtures, Journal of Applied Physics, 109 (2011), 8, 084905
  7. Nigmatulin, R. I., Dynamics of Multiphase Media, Hemisphere, New York, USA, 1991, Vol. 1
  8. Orlov, M., et al., Investigation of the Behaviour of Functionally Graded Materials under Impact Loads, EPJ Web of Conferences, 183 (2018), 2, 01049
  9. Orlov, M. Yu., et al., Numerical Modeling of the Destruction of Steel Plates with a Gradient Substrate, AIP Conference Proceedings, 1893 (2017), 1, 030133
  10. Shteinberg, A. S., et al., Kinetics of Fast Reactions in Condensed Systems: Some Recent Results (an Autoreview), International Journal of Self-Propagating High-Temperature Synthesis, 20 (2011), 4, pp. 259-265
  11. Zelepugin, S. A., Nikulichev, V. B., Numerical Modeling of Sulfur-Aluminum Interaction under Shock-Wave Loading, Combustion, Explosion and Shock Waves, 36 (2000), 6, pp. 845-850
  12. Zelepugin, S. A., et al., The Development of the Aluminum Sulfide Synthesis Reaction on Explosive Loading of a Cylindrical Ampoule, Doklady Physical Chemistry, 434 (2010), 2, pp. 172-176
  13. Ivanova, O., et al., A Multicomponent Medium Model for Reacting Porous Mixtures under Shock Wave Loading, Journal of Energetic Materials, 28 (2010) 1, pp. 303-317
  14. Gorelskii, V. A., et al., Numerical Solution of Three-Dimensional Problem of High-Speed Interaction of a Cylinder with a Rigid Barrier, Taking into Account Thermal Effects, International Applied Mechanics, 30 (1994), 3, pp. 193-198
  15. Johnson, G. R., Numerical Algorithms and Material Models for High-Velocity Impact Computations, International Journal of Impact Engineering, 38 (2011), 6, pp. 456-472
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Initiation and development of exothermic reactions during solid-phase synthesis under explosive loading

© 2024 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence