Pyrotechnic Alternatives to Primary Explosive‐Based Initiators

Grobler, Johannes Marthinus; Kaci, Mustapha; Tichapondwa, Shepherd Masimba; Montgomery, Yolandi C.

doi:10.1002/9783527835348.ch17

Cited by 1 publication

(1 citation statement)

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“…The advantage of this composition over traditional primary Ems is the absence of heavy and toxic metals in the composition. Previously, similar pyrotechnic compositions showed pretty high sensitivity to various electrophysical pulses (such as a high-current electron beam of nanosecond duration, a high-voltage discharge, and an electrical explosion of a semiconductor bridge) [29] and thermal effects [30]. However, their susceptibility to coherent radiation remained unexplored.…”

Section: Application Of 2d Graphene Structures To Reduce the Ignition...mentioning

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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Section: Application Of 2d Graphene Structures To Reduce the Ignition...mentioning

confidence: 99%