A Remote Liquid Target Loading System for a Two-Stage Gas Gun

Gibson, L. L.; Bartram, Brian; Dattelbaum, Dana M.; Sheffield, S. A.; Stahl, D.

doi:10.1063/1.3295055

Cited by 3 publications

(4 citation statements)

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“…Hydrogen peroxide (H 2 O 2 ) is a model reactive system under shock loading where mixtures with and without water are known to detonate. 14 Gas gun studies have indicated microsecond time scales for its reactivity under shock compression, 2 in sharp contrast to the picosecond time scales observed in simulations for similar hydrides (e.g., H 2 O 6,15 ). In this work we experimentally study the behavior of H 2 O 2 on picosecond time scales using ultrafast shock wave characterization techniques.…”

Section: Introductionmentioning

confidence: 94%

“…Here, we experimentally and theoretically investigate shock wave compressed hydrogen peroxide at pressures up to the von Neumann pressure for a steady detonation. Hydrogen peroxide (H 2 O 2 ) is a model reactive system under shock loading where mixtures with and without water are known to detonate . Gas gun studies have indicated microsecond time scales for its reactivity under shock compression, in sharp contrast to the picosecond time scales observed in simulations for similar hydrides (e.g., H 2 O , ).…”

Section: Introductionmentioning

confidence: 99%

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Ultrafast Shock Initiation of Exothermic Chemistry in Hydrogen Peroxide

et al. 2013

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We report observations of shock compressed, unreacted hydrogen peroxide at pressures up to the von Neumann pressure for a steady detonation wave, using ultrafast laser-driven shock wave methods. At higher laser drive energy we find evidence of exothermic chemical reactivity occurring in less than 100 ps after the arrival of the shock wave in the sample. The results are consistent with our MD simulations and analysis and suggest that reactivity in hydrogen peroxide is initiated on a sub-100 ps time scale under conditions found just subsequent to the lead shock in a steady detonation wave.

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Section: Introductionmentioning

confidence: 94%

Section: Introductionmentioning

confidence: 99%

Ultrafast Shock Initiation of Exothermic Chemistry in Hydrogen Peroxide

et al. 2013

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“…According to previous studies, ignition reaction takes place at 9.3–12.1 GPa. [ 14 ] However, the original H 2 O 2 molecule was maintained at close to 10 ps, and no decomposition was found at T = 650 K and P = 9.5 GPa, showing that the temperature of the whole system is higher after the pressure reaches 9.5 GPa in the experiment, as shown in Figure 7 a. Next, we raised the temperature.…”

Section: Resultsmentioning

confidence: 91%

“…[12] Subsequent experiments and simulation studies have shown that high-concentration hydrogen peroxide will ignite when the pressure is higher than 10 GPa. [13][14][15] In recent years, Cheng et al [16] studied the thermal radiation and ignition characteristics of H 2 O 2 using shock loading technology and in situ measurement technology of thermal radiation. When the impact pressure was 8.7-10.6 GPa, they did not find a violent chemical reaction of H 2 O 2 .…”

Section: Introductionmentioning

confidence: 99%

Initial Decomposition Mechanism of H₂O₂ at High Temperature and Pressure

Zheng,

Hong,

Liu

et al. 2023

Physica Status Solidi (b)

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In recent years, H2O2 as an excellent rocket propellant has been widely studied. Herein, the initial decomposition mechanism of H2O2 is studied in detail by molecular dynamics simulation based on density functional theory. It is found that when the energy input to H2O2 is low, the mechanism of intermolecular hydrogen transfer is dominant. With the increase of input energy, the breaking of O–O becomes the first step of the initial reaction, H–O fracture becomes the second step, and finally the transfer of hydrogen to produce H2O and HO2.

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Shockwave generation by electrical explosion of cylindrical wire arrays in hydrogen peroxide/water solutions

Rososhek

Efimov

Maler

et al. 2020

Applied Physics Letters

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We report the results of experiments investigating the implosion of a shock generated by the electrical explosion of a cylindrical aluminum wire array immersed in a >80% hydrogen peroxide/water solution. This solution was chosen as an additional energy source to the supplied electrical energy to generate the imploding flow with higher velocity. The experiments were conducted using a generator with the stored energy of ∼4.8 kJ, delivering to the array a ≤280 kA current rising during ∼1 μs. The backlighted images of the imploding shocks were recorded using a streak camera. Using different diameter wires, the explosion of arrays, characterized by critically damped and under-damped discharges, was studied. The experiments revealed that an array explosion in a 92% H2O2/H2O solution results in the second strong shock generated after the peak of the deposited electrical power, a solid indication of H2O2 detonation. This second shock converges ∼40% faster than the first strong shock generated by the wire explosion. One-dimensional hydrodynamic simulations of the shock convergence in H2O2/H2O solutions support this proposition.

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A Remote Liquid Target Loading System for a Two-Stage Gas Gun

Cited by 3 publications

References 0 publications

Ultrafast Shock Initiation of Exothermic Chemistry in Hydrogen Peroxide

Ultrafast Shock Initiation of Exothermic Chemistry in Hydrogen Peroxide

Initial Decomposition Mechanism of H₂O₂ at High Temperature and Pressure

Shockwave generation by electrical explosion of cylindrical wire arrays in hydrogen peroxide/water solutions

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A Remote Liquid Target Loading System for a Two-Stage Gas Gun

Cited by 3 publications

References 0 publications

Ultrafast Shock Initiation of Exothermic Chemistry in Hydrogen Peroxide

Ultrafast Shock Initiation of Exothermic Chemistry in Hydrogen Peroxide

Initial Decomposition Mechanism of H2O2 at High Temperature and Pressure

Shockwave generation by electrical explosion of cylindrical wire arrays in hydrogen peroxide/water solutions

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Product

Resources

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Initial Decomposition Mechanism of H₂O₂ at High Temperature and Pressure