Detonation characteristics of emulsion explosives sensitized by MgH2

Preliminarily results on the reaction mechanism of detonation of composite emulsion explosives sensitized by MgH 2 , which simultaneously plays the role of an energetic material, are presented. Compared to emulsion explosives sensitized by glass microspheres, emulsion explosives sensitized by magnes...

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Bibliographic Details
Published in:Combustion, explosion, and shock waves explosion, and shock waves, 2013-09, Vol.49 (5), p.614-619
Main Authors: Cheng, Ya. F., Ma, H. H., Shen, Zh. W.
Format: Article
Language:English
Subjects:
Classical and Continuum Physics
Classical Mechanics
Control
Detonation
Dynamical Systems
Engineering
Physical Chemistry
Physics
Physics and Astronomy
Vibration
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Summary:Preliminarily results on the reaction mechanism of detonation of composite emulsion explosives sensitized by MgH 2 , which simultaneously plays the role of an energetic material, are presented. Compared to emulsion explosives sensitized by glass microspheres, emulsion explosives sensitized by magnesium hydride have a different reaction mechanism of detonation. The shock wave overpressure, specific impulse, shock wave energy, and bubble energy are all greatly increased with the use of MgH 2 , and it is noticeable that the shock wave overpressure and shock wave energy increase by 17% and 24%, respectively. In addition, emulsion explosives sensitized by MgH 2 improve significantly in terms of detonation velocity and brisance. These emulsion explosives also meet safety requirements.
ISSN:0010-5082
1573-8345
DOI:10.1134/S0010508213050134