Detonation performance of high-dense BTF charges

Dolgoborodov, A. Yu.; Brazhnikov, M. A.; Makhov, M. N.; Gubin, S. A.; Maklashova, I. V.

doi:10.1088/1742-6596/500/5/052010

Cited by 4 publications

(3 citation statements)

References 7 publications

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“…These tubes are 304 stainless steel and 300 mm high. High pressure and elevated temperature achieved by the shock wave are favorable conditions for carbon transformation into the diamond structure 17,18,23,26,27,28 . Between the steel tubes, there is an empty space that is required for accelerating the flyer tube against the inner tube containing the powder.…”

Section: Methodsmentioning

confidence: 99%

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A New Dynamic Powder Consolidation Technique Using Shock Waves

et al. 2017

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Techniques for shock consolidation of powders have been developed for different purposes, including the synthesis of diamond from carbon powder. In this work, a new device configuration for dynamic consolidation is proposed. It consists of three coaxial tubes, with a conical cover made of explosive at the top of the device. The inner tube contains the powder to be compacted. The second is accelerated towards the first in order to promote its collapse. The third confines the explosive. A conical cap at the top of the device triggers the explosive. For a preliminary evaluation, two types of explosives, TNT and Composition B, were used. Preliminary analytical results by the impedance matching method indicate that maximum pressures of 35.44 GPa and 48.16 GPa could be achieved using TNT and Composition B, respectively. Maximum temperatures around 1,600 K and 2,500 K for TNT and Composition B, respectively, are expected. These pressure and temperature values are adequate for transforming graphite into diamond. Preliminary Rietveld refinement indicated that nanodiamond is a fraction of approximately 54% of the detonation resulting powder.

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Section: Methodsmentioning

confidence: 99%

“…Shock wave consolidation and synthesis of materials has been investigated since 1960's 1-14 for many purposes, including the synthesis of diamonds from carbon powder [15][16][17][18][19][20][21][22][23][24][25][26][27] . This process is associated with the use of explosives.…”

Section: Introductionmentioning

confidence: 99%

A New Dynamic Powder Consolidation Technique Using Shock Waves

et al. 2017

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“…Two conditions are considered indispensable: the explosive having negative oxygen balance (OB), i.e. an excess of carbon over oxygen, and suitable thermodynamic parameters on the Chapman−Jouguet (CJ) plane [23][24][25], i.e. the surface where the reacting gases just reach sonic velocity as the chemical reaction (and energy release) is essentially complete.…”

Section: Introductionmentioning

confidence: 99%

Novel synthesis and properties of hydrogen-free detonation nanodiamond

Бацанов

Осавчук

Naumov

et al. 2018

Materials Chemistry and Physics

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Revealing Solid Properties of High-energy-density Molecular Cocrystals from the Cooperation of Hydrogen Bonding and Molecular Polarizability

Zhang

Jiang

2019

Sci Rep

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In the domain of high-energy-density materials, the understanding to physico-chemical properties has long been primarily based on molecular structures whereas the crystal packing effect that significantly affects solid properties has been seldom involved. Herewith we predict the solid properties of six novel energetic cocrystals by taking into account of the crystal packing effect using a quantum chemistry method. We discover that the hydrogen bonding causes an increase in the molecular polarizability and their cooperation significantly changes the solid-state nature of the cocrystals compared to the pristine crystal and the gas counterparts. For example, stabilizing the multi-component molecular association by increasing the binding energy by 19–41% over the pristine crystals, improving the detonation performance by 5–10% and reducing the sensitivity to external stimuli compared to their pure crystal or gas counterparts. Therefore, the solid nature of the cocrystal is not a simple combination of the pure crystalline properties of its components and the heterogeneous molecular coupling effects must be considered to design improved functional cocrystals.

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Detonation performance of high-dense BTF charges

Cited by 4 publications

References 7 publications

A New Dynamic Powder Consolidation Technique Using Shock Waves

A New Dynamic Powder Consolidation Technique Using Shock Waves

Novel synthesis and properties of hydrogen-free detonation nanodiamond

Revealing Solid Properties of High-energy-density Molecular Cocrystals from the Cooperation of Hydrogen Bonding and Molecular Polarizability

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