Reaction zone measurements in detonating aluminized explosives

Lubyatinsky, S. N.; Loboiko, B. G.

doi:10.1063/1.50857

Cited by 9 publications

(3 citation statements)

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“…Lubyatinsky et al [7] measured the aluminized RDX-based explosive/chloroform interfacial particle velocities. Their results indicated that an increase in aluminum particle diameter from 6 μm to 20 μm resulted in a small increase in the reaction zone length.…”

Section: Introductionmentioning

confidence: 99%

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

Liu¹,

Chen²,

Chen³

et al. 2017

Cent. Eur. J. Energ. Mater.

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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.

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Section: Introductionmentioning

confidence: 99%

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

Liu¹,

Chen²,

Chen³

et al. 2017

Cent. Eur. J. Energ. Mater.

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“…20,21 The reaction time for RDX detonation has been inferred from electrical conductivity measurements to be over ns with the corresponding reaction zone width exceeding lm. [22][23][24] Apart from the overall reaction time, however, little is known about the reaction pathways within ns. Thus, a serious knowledge gap exists on sub-ns reaction dynamics of RDX under high-pressure, hightemperature conditions.…”

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confidence: 99%

Multistage reaction pathways in detonating high explosives

Liu

Kalia

Nakano

et al. 2014

Applied Physics Letters

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“…[22][23][24] Apart from the overall reaction time, however, little is known about the reaction pathways within ns. Thus, a serious knowledge gap exists on sub-ns reaction dynamics of RDX under high-pressure, high-temperature conditions.…”

Section: 21mentioning

confidence: 99%