Pulsed laser irradiation of a nanoparticles sensitised RDX crystal

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dc.contributor.author Xiao, Fang
dc.contributor.author Stone, Matthew
dc.contributor.author Stennett, Christopher
dc.date.accessioned 2020-02-10T10:08:33Z
dc.date.available 2020-02-10T10:08:33Z
dc.date.issued 2020-01-30
dc.identifier.citation Fang X, Stone M, Stennett C. (2020) Pulsed laser irradiation of a nanoparticles sensitised RDX crystal. Combustion and Flame, Volume 214, April 2020, pp. 387-393 en_UK
dc.identifier.issn 0010-2180
dc.identifier.uri https://doi.org/10.1016/j.combustflame.2020.01.009
dc.identifier.uri http://dspace.lib.cranfield.ac.uk/handle/1826/15114
dc.description.abstract The laser initiation of secondary explosives presents tactical, safety and environmental advantages over traditional ignition systems utilising primary explosives. In this paper, direct ignition or initiation by pulsed laser was investigated of cyclotrimethylenetrinitramine (RDX) crystals doped with gold nanoparticles (GNPs) for the first time. A nano-seconds pulsed laser was used for direct irradiation of the crystals at the GNP's surface-plasmon-resonance wavelength of 532 nm. RDX crystals were recrystallised from a solution containing GNPs and characterised by visual microscopy for surface coating and subsurface doping. A high-speed camera was used to observe and capture the modes of interaction between the GNPs-doped RDX crystals and pulsed laser irradiation with a new classification method. Laser fluence thresholds for ignition and initiation were established. The GNPs sensitized RDX to pulsed laser irradiation at this selected wavelength is 3 orders of magnitude more sensitive than pure RDX. Direct initiation of the GNPs doped RDX crystal at laser fluence of 0.04 J/cm2 led to the total consumption of a crystal sample, which was unreproducible with pure RDX. The results show that GNPs are effective optical sensitizers for direct initiation of RDX crystal by low-power pulsed laser. en_UK
dc.language.iso en en_UK
dc.publisher Elsevier en_UK
dc.rights Attribution-NonCommercial-NoDerivatives 4.0 International *
dc.rights.uri http://creativecommons.org/licenses/by-nc-nd/4.0/ *
dc.subject Gold nanoparticles en_UK
dc.subject Laser ignition en_UK
dc.subject Pulsed laser en_UK
dc.subject Explosive en_UK
dc.title Pulsed laser irradiation of a nanoparticles sensitised RDX crystal en_UK
dc.type Article en_UK

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