Reaction zone structure of JB-9014 explosive measured by PDV

PEI Hongbo; HUANG Wenbin; QIN Jincheng; ZHANG Xu; ZHAO Feng; ZHENG Xianxu

doi:10.11883/bzycj-2017-0379

Volume 38 Issue 3

Feb. 2018

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Article Navigation > Explosion And Shock Waves > 2018 > 38(3): 485-490

PEI Hongbo, HUANG Wenbin, QIN Jincheng, ZHANG Xu, ZHAO Feng, ZHENG Xianxu. Reaction zone structure of JB-9014 explosive measured by PDV[J]. Explosion And Shock Waves, 2018, 38(3): 485-490. doi: 10.11883/bzycj-2017-0379

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PEI Hongbo, HUANG Wenbin, QIN Jincheng, ZHANG Xu, ZHAO Feng, ZHENG Xianxu. Reaction zone structure of JB-9014 explosive measured by PDV[J]. Explosion And Shock Waves, 2018, 38(3): 485-490. doi: 10.11883/bzycj-2017-0379

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Reaction zone structure of JB-9014 explosive measured by PDV

doi: 10.11883/bzycj-2017-0379

Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang 621999, Sichuan, China

Received Date: 2017-10-18
Rev Recd Date: 2017-11-15
Publish Date: 2018-05-25

Abstract

Abstract

To understand the detonation reaction process of the TATB-based JB-9014 explosive, experimental measurements of the detonation wave profile of solid explosives using photon Doppler velocimetry (PDV) were performed. Planar detonations were produced by impacting the explosive with a sapphire flyer in a gas gun. Particle velocity wave profiles were measured at the explosive/window interface using PDV. LiF windows with very thin vapor deposited aluminum mirrors were used, and the time resolution of the measuring system was less than 2 ns. The interface velocity histories were derived to determine the reaction zone length and reaction time. The results show that the reaction time of JB-9014 is (0.26±0.02) μs, and the corresponding reaction zone length is (1.5±0.2) mm. The pressure at the end of chemical reaction is 27.3 GPa, the pressure at von Neumann spike is 40.3 GPa.
- photon Doppler velocimetry,
- JB-9014 explosive,
- LiF windows,
- particle velocity,
- reaction zone structure

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References(21)

References

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