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Near-optimal combination of high performance and insensitivity in a shock compressed high explosive single crystal

Journal Article · · Journal of Applied Physics
DOI:https://doi.org/10.1063/5.0057760· OSTI ID:1818148
 [1];  [2];  [2]
  1. Washington State Univ., Pullman, WA (United States). Inst. for Shock Physics; Institute for Shock Physics, Washington State University
  2. Washington State Univ., Pullman, WA (United States). Inst. for Shock Physics
Achieving the desired combination of superior detonation performance and insensitivity to shock initiation has been a long-standing goal in high explosive (HE) science and technology. Having previously established the shock insensitivity of 1,1-diamino-2,2-dinitroethene (also known as DADNE or FOX-7) single crystals to 20 GPa (extended to 25 GPa in this work), the FOX-7 detonation response was determined through wave profile measurements in ~250 μm thick single crystals shock compressed to 64 GPa. Quite unexpectedly, FOX-7 demonstrated the classic Chapman–Jouguet (C–J) detonation response—reaction completion in the detonation front (<0.7 ns) at pressures of 44 GPa and higher—not observed in other insensitive high explosives. Here, the experimentally determined C–J pressure (35 GPa), detonation wave velocities and the detonation products equation of state—together with shock insensitivity to 25 GPa—demonstrate that FOX-7 single crystals display a near-optimal combination of high performance and shock insensitivity, not observed in another HE crystal.
Research Organization:
Washington State Univ., Pullman, WA (United States). Inst. for Shock Physics
Sponsoring Organization:
US Department of the Navy, Office of Naval Research (ONR); USDOE National Nuclear Security Administration (NNSA), Office of Defense Programs (DP)
Grant/Contract Number:
NA0003957
OSTI ID:
1818148
Journal Information:
Journal of Applied Physics, Journal Name: Journal of Applied Physics Journal Issue: 1 Vol. 130; ISSN 0021-8979
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English

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