Detonation Reaction Characteristics for CL-20 and CL-20-based Aluminized Mixed Explosives

Content Provider	Semantic Scholar
Author	Liu, Danyang Chen, Lang Chen, Wang Wu, Junying
Copyright Year	2017
Abstract	The interfacial particle velocities for CL-20 and CL-20-based aluminized mixed explosives were measured by interferometry in order to analyze the aluminum reactions in the latter. The reaction characteristics were obtained, as well as a better understanding of the effects of aluminum powder on the detonation reaction zone length. Two functions were used to fit the particle velocity-time profiles, and their intersection was the corresponding Chapman-Jouget (CJ) point. From these profiles, the detonation reaction zone length and the aluminum reaction were then analyzed. CL-20-based explosives have a short reaction time (48 ns for a high CL-20 content), while the reaction time of CL-20/Al explosives increased with the aluminum content and particle size. Micron-scale aluminum particles barely reacted in the CL-20 detonation reaction zone, but instead reacted with the detonation products after the CJ point. This reduced the detonation pressure; however, the aluminum reaction can slow down the decrease in particle velocities. The start times of small-particle aluminum reactions were earlier than those of the larger particles. The 2-3-μm aluminum particles start to react within 1 μs after the CJ point, while the 200-nm particles may start to react in the reaction zone.
Starting Page	573
Ending Page	588
Page Count	16
File Format	PDF HTM / HTML
DOI	10.22211/cejem/75114
Alternate Webpage(s)	http://www.wydawnictwa.ipo.waw.pl/cejem/Vol-14-Number-3-2017/Liu.pdf
Alternate Webpage(s)	https://doi.org/10.22211/cejem%2F75114
Volume Number	14
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article