Laser Initiation of Energy-Saturated Composites Based on Nanoporous Silicon

Zegrya, G. G.; Savenkov, G. G.; Zegrya, A. G.; Bragin, V. A.; Os’kin, I. A.; Poberezhnaya, U. M.

doi:10.1134/s1063784220100266

Cited by 6 publications

(5 citation statements)

References 12 publications

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“…3, a). Previously, laser initiation of por-Si-based ESC with perchlorate oxidizer did not observe smoke [14] . What is the cause of the white smoke in this case?…”

Section: Laser Initiationmentioning

confidence: 87%

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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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“…3, a). Previously, laser initiation of por-Si-based ESC with perchlorate oxidizer did not observe smoke [14] . What is the cause of the white smoke in this case?…”

Section: Laser Initiationmentioning

confidence: 87%

“…If we talk about optical or electron-beam excitation of explosive transformations in energy-saturated composites (and not only based on porous silicon), then in works [13,14], it was found that the sensitizer role for both initiation methods is played by graphene.…”

Section: Introductionmentioning

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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“…A promising composition based on porous silicon was used as the base pyrotechnic composition [19], according to the method described in the article [20]. Nanoporous silicon (por-Si) with a porosity of 70-80% and an average pore size of 12-15 nm was obtained.…”

Section: Production Of Pyrotechnic Compositionsmentioning

confidence: 99%

Safe Explosion Works Promoted by 2D Graphene Structures Produced under the Condition of Self-Propagation High-Temperature Synthesis

Voznyakovskii,

Ilyushin,

Vozniakovskii

et al. 2024

Nanomanufacturing

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The paper presents the results of a study on the effectiveness of few-layer graphene synthesized under SHS conditions from lignin as a modifying additive in creating composite pyrotechnic complexes based on porous silicon and calcium perchlorate. It was found that the addition of few-layer graphene (20–30 wt. %) could significantly increase the probability of the ignition of pyrotechnic compositions by laser diode (infrared) radiation (wavelength of 976 nm and power of 15 MW/m2) compared to the initial pyrotechnic compositions. Using few-layer graphene also leads to a sharp increase in sensitivity to infrared laser radiation and the initiation of explosive transformations in retrofitted pyrotechnic compositions compared to the initial pyrotechnic compositions. Due to the high productivity and low cost of the technique for synthesizing few-layer graphene, the use of composite pyrotechnic compositions modified with few-layer graphene is profitable in the actual industry. A phenomenological model of the formation mechanism of 2D graphene structures under the conditions of the SHS process is proposed.

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“…A promising composition based on porous silicon was used as the base pyrotechnic composition [32], according to the method described in the article [33]. Nanoporous silicon (por-Si) with a porosity of 70-80% and an average pore size of 12-15 nm was obtained.…”

Section: Production Of Pyrotechnic Compositionsmentioning

confidence: 99%

2D Graphene Structures for Safe Explosion Works Produced by Self-Propagation High Temperatures Synthesis

Voznyakovskii,

Il’yushin,

Vozniakovskii

et al. 2023

Preprint

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Carbonization of a biopolymer (lignin) in self-propagating high-temperature synthesis (SHS) led to the production of 2D graphene structures. With the help of modern analytical methods (Raman spectroscopy, X-ray diffraction) and electron microscopy, the resulting product was confirmed to have a few-layer 2D graphene structure. The predicted photovoltaic properties of the resulting few-layer graphene were implemented for laser ignition of a model pyrotechnic composition based on porous silicon. A phenomenological model of the formation mechanism of 2D graphene structures under the conditions of the SHS process is proposed.

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Laser Initiation of Energy-Saturated Composites Based on Nanoporous Silicon

Cited by 6 publications

References 12 publications

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

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

Safe Explosion Works Promoted by 2D Graphene Structures Produced under the Condition of Self-Propagation High-Temperature Synthesis

2D Graphene Structures for Safe Explosion Works Produced by Self-Propagation High Temperatures Synthesis

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