Diamond formation in double-shocked epoxy to 150 GPa
We present measurements of diamond formation in doubly shocked Stycast 1266 epoxy (comprising C, H, Cl, N, and O) using in situ x-ray diffraction. Epoxy samples were reshocked against a LiF window to pressures between 80 and 148 GPa in experiments at the Omega Laser Facility. Furthermore, the pressu...
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ftosti:oai:osti.gov:1846978 2023-07-30T04:04:55+02:00 Diamond formation in double-shocked epoxy to 150 GPa Marshall, M. C. Gorman, M. G. Polsin, D. N. Eggert, J. H. Ginnane, M. K. Rygg, J. R. Collins, G. W. Leininger, L. D. 2023-04-06 application/pdf http://www.osti.gov/servlets/purl/1846978 https://www.osti.gov/biblio/1846978 https://doi.org/10.1063/5.0082237 unknown http://www.osti.gov/servlets/purl/1846978 https://www.osti.gov/biblio/1846978 https://doi.org/10.1063/5.0082237 doi:10.1063/5.0082237 36 MATERIALS SCIENCE 2023 ftosti https://doi.org/10.1063/5.0082237 2023-07-11T10:10:22Z We present measurements of diamond formation in doubly shocked Stycast 1266 epoxy (comprising C, H, Cl, N, and O) using in situ x-ray diffraction. Epoxy samples were reshocked against a LiF window to pressures between 80 and 148 GPa in experiments at the Omega Laser Facility. Furthermore, the pressure and temperature conditions were diagnosed in situ using velocimetry and optical pyrometry, respectively. X-ray diffraction patterns of the compressed epoxy are consistent with cubic diamond (Fd3¯m), indicating that diamond can precipitate not only from twice-shocked CH polystyrene [Kraus et al. Nat. Astron. 1, 606 (2017)] at these conditions but also from twice-shocked CH polymers with the addition of oxygen, nitrogen, and chlorine. These results, in combination with previous works on CH, CH 2 , CH 4 , and methane hydrate, support that diamond often, but not always, forms from CH-based compounds at extreme pressures and temperatures, indicating that the chemical composition, thermodynamic compression path, and kinetics play an important role. Other/Unknown Material Methane hydrate SciTec Connect (Office of Scientific and Technical Information - OSTI, U.S. Department of Energy) Journal of Applied Physics 131 8 085904 |
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SciTec Connect (Office of Scientific and Technical Information - OSTI, U.S. Department of Energy) |
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36 MATERIALS SCIENCE |
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36 MATERIALS SCIENCE Marshall, M. C. Gorman, M. G. Polsin, D. N. Eggert, J. H. Ginnane, M. K. Rygg, J. R. Collins, G. W. Leininger, L. D. Diamond formation in double-shocked epoxy to 150 GPa |
topic_facet |
36 MATERIALS SCIENCE |
description |
We present measurements of diamond formation in doubly shocked Stycast 1266 epoxy (comprising C, H, Cl, N, and O) using in situ x-ray diffraction. Epoxy samples were reshocked against a LiF window to pressures between 80 and 148 GPa in experiments at the Omega Laser Facility. Furthermore, the pressure and temperature conditions were diagnosed in situ using velocimetry and optical pyrometry, respectively. X-ray diffraction patterns of the compressed epoxy are consistent with cubic diamond (Fd3¯m), indicating that diamond can precipitate not only from twice-shocked CH polystyrene [Kraus et al. Nat. Astron. 1, 606 (2017)] at these conditions but also from twice-shocked CH polymers with the addition of oxygen, nitrogen, and chlorine. These results, in combination with previous works on CH, CH 2 , CH 4 , and methane hydrate, support that diamond often, but not always, forms from CH-based compounds at extreme pressures and temperatures, indicating that the chemical composition, thermodynamic compression path, and kinetics play an important role. |
author |
Marshall, M. C. Gorman, M. G. Polsin, D. N. Eggert, J. H. Ginnane, M. K. Rygg, J. R. Collins, G. W. Leininger, L. D. |
author_facet |
Marshall, M. C. Gorman, M. G. Polsin, D. N. Eggert, J. H. Ginnane, M. K. Rygg, J. R. Collins, G. W. Leininger, L. D. |
author_sort |
Marshall, M. C. |
title |
Diamond formation in double-shocked epoxy to 150 GPa |
title_short |
Diamond formation in double-shocked epoxy to 150 GPa |
title_full |
Diamond formation in double-shocked epoxy to 150 GPa |
title_fullStr |
Diamond formation in double-shocked epoxy to 150 GPa |
title_full_unstemmed |
Diamond formation in double-shocked epoxy to 150 GPa |
title_sort |
diamond formation in double-shocked epoxy to 150 gpa |
publishDate |
2023 |
url |
http://www.osti.gov/servlets/purl/1846978 https://www.osti.gov/biblio/1846978 https://doi.org/10.1063/5.0082237 |
genre |
Methane hydrate |
genre_facet |
Methane hydrate |
op_relation |
http://www.osti.gov/servlets/purl/1846978 https://www.osti.gov/biblio/1846978 https://doi.org/10.1063/5.0082237 doi:10.1063/5.0082237 |
op_doi |
https://doi.org/10.1063/5.0082237 |
container_title |
Journal of Applied Physics |
container_volume |
131 |
container_issue |
8 |
container_start_page |
085904 |
_version_ |
1772816555491459072 |