Synthesis of diamond from the carbon in the detonation products of explosives

Волков, К. Н.; Даниленко, В. В.; Elin, V. I.

doi:10.1007/bf00751383

Cited by 40 publications

(35 citation statements)

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“…Diamond particles with a characteristic size of 20-40 nm can grow in the relaxation zone of the detonation wave during the time t ≈ 10 −7 -10 −6 sec. This estimate approximately corresponds to the maximum size of detonation diamonds [37][38][39][40][41]88]. Then, diamond particles with a size up to 100 nm can grow in the Taylor wave during the time t ≈ 10 −5 -10 −4 sec.…”

Section: Discussion Of Results Prospects Of Researchmentioning

confidence: 98%

“…One of the most realistic methods of HE utilization is obtaining superhard materials, in particular, synthetic diamonds [2,5]. Synthesis of nanodiamonds from solid HEs was considered in much detail in some papers (see, e.g., [37][38][39][40][41][42]). Kondo and Sawai [43] made an attempt to obtain a superhard material by shock-induced compacting of a diamond powder including the ultradispersed fraction.…”

Section: Formulation Of the Problemsmentioning

confidence: 99%

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Pulsed Loading of Objects during Intense Expansion of Products of Explosion of Solid Explosives (Review)

Lin

2005

Combust Explos Shock Waves

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Specific features of pulsed loading of objects during intense expansion of explosion products of solid explosives are considered. Parameters of the semi-empirical equation of state of explosion products in the density range that has not been adequately considered are given. Results of experimental investigations of reflection of unsteady shock waves from a rigid wall and their effect on thin targets are summarized. Processes that occur under moderate-intensity dynamic impacts on solid and porous media are described: multiple collisions of solids with rigid targets, shock-induced coalescence of nanodiamonds, and emission effects due to expansion of explosion products into an evacuated volume, air, and inert gas.

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Section: Discussion Of Results Prospects Of Researchmentioning

confidence: 98%

Section: Formulation Of the Problemsmentioning

confidence: 99%

Pulsed Loading of Objects during Intense Expansion of Products of Explosion of Solid Explosives (Review)

Lin

2005

Combust Explos Shock Waves

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“…This phenomenon has often been observed in experiment [1][2][3][4][5][6][7][8][9][10][11] and is a subject of theoretical research including phenomenological studies with EOS (e.g., the BKW) and macrokinetics models [12] and more detailed studies into the physics of carbon condensation in detonation products, its phase states, and kinetics of carbon particle growth/vaporization (see, for example, [13]). …”

Section: Introductionmentioning

confidence: 55%

Molecular dynamics modelling of nanocarbon cluster properties under conditions close to HE detonation

Derbenev

Chizhkova

Sapozhnikov

et al. 2010

EPJ Web of Conferences

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Abstract. We use molecular dynamics for modelling properties of carbon nanoclusters.The size of modelled carbon nanoclusters is below 5 nm, which is typical of detonation diamond nanoclusters. We have found their structural changes at P = 0 to be as follows: Diamond → Diamond core + GL-surface → sandwich-type graphite → Graphite-like liquid. In smaller clusters the transformations start at a lower temperature. Adaptive Template Analysis (ATA) was used to determine the structures. We studied evaporation properties at temperatures above 5000 K. For clusters of several thousands of atoms, the simple dependence k vap ∼ e −T 0 /T /N 1/3 (T 0 is constant) is quite good. It has been found out that densities of saturated vapour for clusters containing from 4000 to 8000 atoms are very close at T = 5000 K. The structure of nanoclusters was studied at nonzero pressures set by an argon environment. Calculated results suggest that the patterns for different temperatures are qualitatively similar for three pressures under study (20, 25 and 30 GPa). At T = 1000-1500 K, the initial diamond core is preserved and a thin disordered GL layer is present on the surface. At T = 2000-5000 K, graphite grains form in the sample and a thin layer of liquid is present on its surface. The sample is amorphous at 5500 K and 6000 K. The prevalence of the graphite phase at these pressures seems to come from the absence of long-range interaction in REBO-2002.

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“…In 1963, Russian groups achieved synthesis of NDs by decomposition of explosive mixtures [4]. Indeed, according to thermodynamic calculations, free carbon produced in detonation products of condensed carbon-containing individual explosives with a negative oxygen balance should condense into diamond [5].…”

Section: Detonation Synthesismentioning

confidence: 99%

“…% diluted in dihydrogen). CH 4 and H 2 molecules could be dissociated either by a hot filament (Hot Filament CVD, HFCVD) or by microwaves (Micro-wave Plasma Assisted CVD, MPACVD). Methyl radicals (CH 3…”

Section: Chemical Vapor Deposition (Cvd)mentioning

confidence: 99%

Nanodiamonds: From Synthesis and Purification to Deposition Techniques, Hybrids Fabrication and Applications

Arnault

2016

Carbon Nanoparticles and Nanostructures

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The present chapter summarizes the recent advances in the production and the purification methods of nanodiamonds. The different strategies for seeding and patterning of surfaces are detailed. First reports of hybrids based on nanodiamonds are included like core shell particles or decoration with carbon dots or metallic atoms. Finally, an overview of applications for composites and nanomedicine is provided.

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Synthesis of diamond from the carbon in the detonation products of explosives

Cited by 40 publications

References 1 publication

Pulsed Loading of Objects during Intense Expansion of Products of Explosion of Solid Explosives (Review)

Pulsed Loading of Objects during Intense Expansion of Products of Explosion of Solid Explosives (Review)

Molecular dynamics modelling of nanocarbon cluster properties under conditions close to HE detonation

Nanodiamonds: From Synthesis and Purification to Deposition Techniques, Hybrids Fabrication and Applications

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