Highly efficient low-toxicity catalysts of combustion of double-base powders

Denisyuk, A. P.; Demidova, L. A.; Shepelev, Yu. G.; Baloyan, B. M.; Telepchenkov, V. E.

doi:10.1007/bf02671801

Cited by 4 publications

(2 citation statements)

References 3 publications

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“…Tailoring the burning rate of the double-based propellants, i.e., nitrocellulose-based formulations, is usually performed by adding of 1–10 wt.% of catalysts or inhibitors [23,24]. The general conclusion drawn on the basis of the experience with catalysis of double-based propellants is that carbonaceous skeleton formed above the burning surface promotes the burning rate via the prolongated residence of catalyst particles and increase of heat flux to the condensed phase [24,25,26]. The desired carbonaceous layer can be formed either during combustion of some components, e.g., dinitrotoluene, dibutyl phthalate plasticizers, or by introduced prior to combustion additives (e.g., 0.5–3 wt.% of carbon black in [24]).…”

Section: Introductionmentioning

confidence: 99%

Supercritical Antisolvent Processing of Nitrocellulose: Downscaling to Nanosize, Reducing Friction Sensitivity and Introducing Burning Rate Catalyst

et al. 2019

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A supercritical antisolvent process has been applied to obtain the nitrocellulose nanoparticles with an average size of 190 nm from the nitrocellulose fibers of 20 μm in diameter. Compared to the micron-sized powder, nano-nitrocellulose is characterized with a slightly lower decomposition onset, however, the friction sensitivity has been improved substantially along with the burning rate increasing from 3.8 to 4.7 mm·s−1 at 2 MPa. Also, the proposed approach allows the production of stable nitrocellulose composites. Thus, the addition of 1 wt.% carbon nanotubes further improves the sensitivity of the nano-nitrocellulose up to the friction-insensitive level. Moreover, the simultaneous introduction of carbon nanotubes and nanosized iron oxide catalyzes the combustion process evidenced by a high-speed filming and resulting in the 20% burning rate increasing at 12 MPa. The presented approach to the processing of energetic nanomaterials based on the supercritical fluid technology opens the way to the production of nitrocellulose-based nanopowders with improved performance.

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Section: Introductionmentioning

confidence: 99%

Supercritical Antisolvent Processing of Nitrocellulose: Downscaling to Nanosize, Reducing Friction Sensitivity and Introducing Burning Rate Catalyst

et al. 2019

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“…That is, it implies a rapid ejection of combustible particles of the energy-saturated composite from the film surface by an upward thermal flow into the gas phase and igniting them with air oxygen. It is assumed, that in this zone, about half of the total energy contained in the energy composite is released, and the maximum combustion temperature [16,17] is reached. The formation of a secondary flame during combustion of the pyrotechnic composition in Fig.…”

Section: Laser Initiationmentioning

confidence: 99%

Optical and electron-beam initiation of porous silicon films with different contents of oxidizer and graphene

et al. 2022

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Laser and electron-beam initiation of the combustion process of energy-saturated composite films were studied. Composites were produced from porous silicon, a fluorine-containing polymer, and graphene. It is shown that the impact of a high-current electron beam of nanosecond duration does not lead to the excitation of the combustion process. Moreover, the process of film combustion during laser initiation is accompanied in some cases by the appearance of a zone of secondary flame and white smoke. Keywords: porous silicon, energy-saturated composite, laser initiation, electron-beam initiation, combustion.

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Khmel

Федоров

2002

Combustion, Explosion, and Shock Waves

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Highly efficient low-toxicity catalysts of combustion of double-base powders

Cited by 4 publications

References 3 publications

Supercritical Antisolvent Processing of Nitrocellulose: Downscaling to Nanosize, Reducing Friction Sensitivity and Introducing Burning Rate Catalyst

Supercritical Antisolvent Processing of Nitrocellulose: Downscaling to Nanosize, Reducing Friction Sensitivity and Introducing Burning Rate Catalyst

Optical and electron-beam initiation of porous silicon films with different contents of oxidizer and graphene

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