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Title: Measurement of Carbon Condensates Using Small-Angle X-ray Scattering During Detonation of High Explosives

Authors:
; ; ; ; ; ; ; ; ; ; ; ; ; ;  [1];  [2];  [2]
  1. (LLNL)
  2. (
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States). Advanced Photon Source (APS)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1344571
Resource Type:
Conference
Resource Relation:
Conference: Shock Compression of Condensed Matter - 2015;;
Country of Publication:
United States
Language:
ENGLISH

Citation Formats

Willey, T.M., Bagge-Hansen, M., Lauderbach, L., Hodgin, R., Hansen, D., May, C., van Buuren, T., Dattelbaum, D.M., Gustavsen, R.L., Watkins, E.B., Firestone, M.A., Jensen, B.J., Graber, T., Bastea, S., Fried, L., Wash State U), and LANL). Measurement of Carbon Condensates Using Small-Angle X-ray Scattering During Detonation of High Explosives. United States: N. p., 2017. Web. doi:10.1063/1.4971470.
Willey, T.M., Bagge-Hansen, M., Lauderbach, L., Hodgin, R., Hansen, D., May, C., van Buuren, T., Dattelbaum, D.M., Gustavsen, R.L., Watkins, E.B., Firestone, M.A., Jensen, B.J., Graber, T., Bastea, S., Fried, L., Wash State U), & LANL). Measurement of Carbon Condensates Using Small-Angle X-ray Scattering During Detonation of High Explosives. United States. doi:10.1063/1.4971470.
Willey, T.M., Bagge-Hansen, M., Lauderbach, L., Hodgin, R., Hansen, D., May, C., van Buuren, T., Dattelbaum, D.M., Gustavsen, R.L., Watkins, E.B., Firestone, M.A., Jensen, B.J., Graber, T., Bastea, S., Fried, L., Wash State U), and LANL). Tue . "Measurement of Carbon Condensates Using Small-Angle X-ray Scattering During Detonation of High Explosives". United States. doi:10.1063/1.4971470.
@article{osti_1344571,
title = {Measurement of Carbon Condensates Using Small-Angle X-ray Scattering During Detonation of High Explosives},
author = {Willey, T.M. and Bagge-Hansen, M. and Lauderbach, L. and Hodgin, R. and Hansen, D. and May, C. and van Buuren, T. and Dattelbaum, D.M. and Gustavsen, R.L. and Watkins, E.B. and Firestone, M.A. and Jensen, B.J. and Graber, T. and Bastea, S. and Fried, L. and Wash State U) and LANL)},
abstractNote = {},
doi = {10.1063/1.4971470},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Feb 21 00:00:00 EST 2017},
month = {Tue Feb 21 00:00:00 EST 2017}
}

Conference:
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  • The dynamics of carbon condensation in detonating high explosives remains controversial. Detonation model validation requires data for processes occurring at nanometer length scales on time scales ranging from nanoseconds to microseconds. A new detonation endstation has been commissioned to acquire and provide time-resolved small-angle x-ray scattering (SAXS) from detonating explosives. Hexanitrostilbene (HNS) was selected as the first to investigate due to its ease of initiation using exploding foils and flyers, vacuum compatibility, high thermal stability, and stoichiometric carbon abundance that produces high carbon condensate yields. The SAXS data during detonation, collected with 300 ns time resolution, provide unprecedented signal fidelity overmore » a broad q-range. This fidelity permits the first analysis of both the Guinier and Porod/power-law regions of the scattering profile during detonation, which contains information about the size and morphology of the resultant carbon condensate nanoparticles. To bolster confidence in these data, the scattering angle and intensity were additionally cross-referenced with a separate, highly calibrated SAXS beamline. The data show that HNS produces carbon particles with a radius of gyration of 2.7 nm in less than 400 ns after the detonation front has passed, and this size and morphology are constant over the next several microseconds. These data directly contradict previous pioneering work on RDX/TNT mixtures and TATB, where observations indicate significant particle growth (50% or more) continues over several microseconds. The power-law slope is about −3, which is consistent with a complex disordered, irregular, or folded sp{sup 2} sub-arrangement within a relatively monodisperse structure possessing radius of gyration of 2.7 nm after the detonation of HNS.« less
  • Cited by 12
  • In this study, the dynamics of carbon condensation in detonating high explosives remains controversial. Detonation model validation requires data for processes occurring at nanometer length scales on time scales ranging from nanoseconds to microseconds. A new detonation end station has been commissioned to acquire and provide time-resolved small-angle x-ray scattering (SAXS) from detonating explosives. Hexanitrostilbene (HNS) was selected as the first to investigate due to its ease of initiation using exploding foils and flyers, vacuum compatibility, high thermal stability, and stoichiometric carbon abundance that produces high carbon condensate yields. The SAXS data during detonation, collected with 300 ns time resolution,more » provide unprecedented signal fidelity over a broad q-range. This fidelity permits the first analysis of both the Guinier and Porod/power-law regions of the scattering profile during detonation, which contains information about the size and morphology of the resultant carbon condensate nanoparticles. To bolster confidence in these data, the scattering angle and intensity were additionally cross-referenced with a separate, highly calibrated SAXS beamline. The data show that HNS produces carbon particles with a radius of gyration of 2.7 nm in less than 400 ns after the detonation front has passed, and this size and morphology are constant over the next several microseconds. These data directly contradict previous pioneering work on RDX/TNT mixtures and TATB, where observations indicate significant particle growth (50% or more) continues over several microseconds. The power-law slope is about -3, which is consistent with a complex disordered, irregular, or folded sp 2 sub-arrangement within a relatively monodisperse structure possessing radius of gyration of 2.7 nm after the detonation of HNS.« less
  • The dynamics of carboncondensation in detonating high explosives remains controversial. Detonation model validation requires data for processes occurring at nanometer length scales on time scales ranging from nanoseconds to microseconds. A new detonation endstation has been commissioned to acquire and provide time-resolved small-angle x-ray scattering (SAXS) from detonating explosives. Hexanitrostilbene (HNS) was selected as the first to investigate due to its ease of initiation using exploding foils and flyers, vacuum compatibility, high thermal stability, and stoichiometric carbon abundance that produces high carbon condensate yields. The SAXS data during detonation, collected with 300 ns time resolution, provide unprecedented signal fidelity overmore » a broad q-range. This fidelity permits the first analysis of both the Guinier and Porod/power-law regions of the scattering profile during detonation, which contains information about the size and morphology of the resultant carbon condensate nanoparticles. To bolster confidence in these data, the scattering angle and intensity were additionally cross-referenced with a separate, highly calibrated SAXS beamline. The data show that HNS produces carbon particles with a radius of gyration of 2.7 nm in less than 400 ns after the detonation front has passed, and this size and morphology are constant over the next several microseconds. These data directly contradict previous pioneering work on RDX/TNT mixtures and TATB, where observations indicate significant particle growth (50% or more) continues over several microseconds. As a result, the power-law slope is about –3, which is consistent with a complex disordered, irregular, or folded sp 2 sub-arrangement within a relatively monodisperse structure possessing radius of gyration of 2.7 nm after the detonation of HNS.« less