Measuring the structure and equation of state of polyethylene terephthalate at megabar pressures
Abstract We present structure and equation of state (EOS) measurements of biaxially orientated polyethylene terephthalate (PET, $$({\hbox {C}}_{10} {\hbox {H}}_8 {\hbox {O}}_4)_n$$ ( C 10 H 8 O 4 ) n , also called mylar) shock-compressed to ( $$155 \pm 20$$ 155 ± 20 ) GPa and ( $$6000 \pm 1000$$ 600...
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Nature Portfolio
2021
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oai:doaj.org-article:c766cb48d8d4499d8adf1c72bbf4a6692021-12-02T17:41:27ZMeasuring the structure and equation of state of polyethylene terephthalate at megabar pressures10.1038/s41598-021-91769-02045-2322https://doaj.org/article/c766cb48d8d4499d8adf1c72bbf4a6692021-06-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-91769-0https://doaj.org/toc/2045-2322Abstract We present structure and equation of state (EOS) measurements of biaxially orientated polyethylene terephthalate (PET, $$({\hbox {C}}_{10} {\hbox {H}}_8 {\hbox {O}}_4)_n$$ ( C 10 H 8 O 4 ) n , also called mylar) shock-compressed to ( $$155 \pm 20$$ 155 ± 20 ) GPa and ( $$6000 \pm 1000$$ 6000 ± 1000 ) K using in situ X-ray diffraction, Doppler velocimetry, and optical pyrometry. Comparing to density functional theory molecular dynamics (DFT-MD) simulations, we find a highly correlated liquid at conditions differing from predictions by some equations of state tables, which underlines the influence of complex chemical interactions in this regime. EOS calculations from ab initio DFT-MD simulations and shock Hugoniot measurements of density, pressure and temperature confirm the discrepancy to these tables and present an experimentally benchmarked correction to the description of PET as an exemplary material to represent the mixture of light elements at planetary interior conditions.J. LütgertJ. VorbergerN. J. HartleyK. VoigtM. RödelA. K. SchusterA. Benuzzi-MounaixS. BrownT. E. CowanE. CunninghamT. DöppnerR. W. FalconeL. B. FletcherE. GaltierS. H. GlenzerA. Laso GarciaD. O. GerickeP. A. HeimannH. J. LeeE. E. McBrideA. PelkaI. PrencipeA. M. SaundersM. SchölmerichM. SchörnerP. SunT. VinciA. RavasioD. KrausNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-9 (2021) |
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DOAJ |
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Medicine R Science Q |
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Medicine R Science Q J. Lütgert J. Vorberger N. J. Hartley K. Voigt M. Rödel A. K. Schuster A. Benuzzi-Mounaix S. Brown T. E. Cowan E. Cunningham T. Döppner R. W. Falcone L. B. Fletcher E. Galtier S. H. Glenzer A. Laso Garcia D. O. Gericke P. A. Heimann H. J. Lee E. E. McBride A. Pelka I. Prencipe A. M. Saunders M. Schölmerich M. Schörner P. Sun T. Vinci A. Ravasio D. Kraus Measuring the structure and equation of state of polyethylene terephthalate at megabar pressures |
| description |
Abstract We present structure and equation of state (EOS) measurements of biaxially orientated polyethylene terephthalate (PET, $$({\hbox {C}}_{10} {\hbox {H}}_8 {\hbox {O}}_4)_n$$ ( C 10 H 8 O 4 ) n , also called mylar) shock-compressed to ( $$155 \pm 20$$ 155 ± 20 ) GPa and ( $$6000 \pm 1000$$ 6000 ± 1000 ) K using in situ X-ray diffraction, Doppler velocimetry, and optical pyrometry. Comparing to density functional theory molecular dynamics (DFT-MD) simulations, we find a highly correlated liquid at conditions differing from predictions by some equations of state tables, which underlines the influence of complex chemical interactions in this regime. EOS calculations from ab initio DFT-MD simulations and shock Hugoniot measurements of density, pressure and temperature confirm the discrepancy to these tables and present an experimentally benchmarked correction to the description of PET as an exemplary material to represent the mixture of light elements at planetary interior conditions. |
| format |
article |
| author |
J. Lütgert J. Vorberger N. J. Hartley K. Voigt M. Rödel A. K. Schuster A. Benuzzi-Mounaix S. Brown T. E. Cowan E. Cunningham T. Döppner R. W. Falcone L. B. Fletcher E. Galtier S. H. Glenzer A. Laso Garcia D. O. Gericke P. A. Heimann H. J. Lee E. E. McBride A. Pelka I. Prencipe A. M. Saunders M. Schölmerich M. Schörner P. Sun T. Vinci A. Ravasio D. Kraus |
| author_facet |
J. Lütgert J. Vorberger N. J. Hartley K. Voigt M. Rödel A. K. Schuster A. Benuzzi-Mounaix S. Brown T. E. Cowan E. Cunningham T. Döppner R. W. Falcone L. B. Fletcher E. Galtier S. H. Glenzer A. Laso Garcia D. O. Gericke P. A. Heimann H. J. Lee E. E. McBride A. Pelka I. Prencipe A. M. Saunders M. Schölmerich M. Schörner P. Sun T. Vinci A. Ravasio D. Kraus |
| author_sort |
J. Lütgert |
| title |
Measuring the structure and equation of state of polyethylene terephthalate at megabar pressures |
| title_short |
Measuring the structure and equation of state of polyethylene terephthalate at megabar pressures |
| title_full |
Measuring the structure and equation of state of polyethylene terephthalate at megabar pressures |
| title_fullStr |
Measuring the structure and equation of state of polyethylene terephthalate at megabar pressures |
| title_full_unstemmed |
Measuring the structure and equation of state of polyethylene terephthalate at megabar pressures |
| title_sort |
measuring the structure and equation of state of polyethylene terephthalate at megabar pressures |
| publisher |
Nature Portfolio |
| publishDate |
2021 |
| url |
https://doaj.org/article/c766cb48d8d4499d8adf1c72bbf4a669 |
| work_keys_str_mv |
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