Diamond formation kinetics in shock-compressed C─H─O samples recorded by small-angle x-ray scattering and x-ray diffraction-Reference-Cited by-同舟云学术

Diamond formation kinetics in shock-compressed C─H─O samples recorded by small-angle x-ray scattering and x-ray diffraction

Published:2022-09-02 Issue:35 Volume:8 Page:
ISSN:2375-2548
Container-title:Science Advances
language:en
Short-container-title:Sci. Adv.

Author:

He Zhiyu¹²³^ORCID,Rödel Melanie¹⁴,Lütgert Julian¹²⁴^ORCID,Bergermann Armin²^ORCID,Bethkenhagen Mandy⁵^ORCID,Chekrygina Deniza¹^ORCID,Cowan Thomas E.¹⁴,Descamps Adrien⁶^ORCID,French Martin²^ORCID,Galtier Eric⁶^ORCID,Gleason Arianna E.⁶^ORCID,Glenn Griffin D.⁶⁷^ORCID,Glenzer Siegfried H.⁶^ORCID,Inubushi Yuichi⁸⁹,Hartley Nicholas J.⁶^ORCID,Hernandez Jean-Alexis¹⁰¹¹^ORCID,Heuser Benjamin¹²,Humphries Oliver S.¹^ORCID,Kamimura Nobuki¹²^ORCID,Katagiri Kento¹²^ORCID,Khaghani Dimitri⁶^ORCID,Lee Hae Ja⁶^ORCID,McBride Emma E.⁶^ORCID,Miyanishi Kohei⁹^ORCID,Nagler Bob⁶,Ofori-Okai Benjamin⁶^ORCID,Ozaki Norimasa¹²¹³,Pandolfi Silvia⁶^ORCID,Qu Chongbing²^ORCID,Ranjan Divyanshu¹²,Redmer Ronald²^ORCID,Schoenwaelder Christopher⁶¹⁴,Schuster Anja K.¹⁴^ORCID,Stevenson Michael G.²,Sueda Keiichi⁹^ORCID,Togashi Tadashi⁸⁹^ORCID,Vinci Tommaso¹⁵^ORCID,Voigt Katja¹⁴^ORCID,Vorberger Jan¹^ORCID,Yabashi Makina⁸⁹^ORCID,Yabuuchi Toshinori⁸⁹^ORCID,Zinta Lisa M. V.²^ORCID,Ravasio Alessandra¹⁵,Kraus Dominik¹²^ORCID

Affiliation:

1. Helmholtz-Zentrum Dresden-Rossendorf, Bautzner Landstrasse 400, 01328 Dresden, Germany.

2. Institut für Physik, Universität Rostock, Albert-Einstein-Str. 23-24, 18059 Rostock, Germany.

3. Shanghai Institute of Laser Plasma, 201800 Shanghai, China.

4. Technische Universität Dresden, 01069 Dresden, Germany.

5. École Normale Supérieure de Lyon, Laboratoire de Géologie de Lyon, LGLTPE UMR 5276, Centre Blaise Pascal, 46 allée d’Italie, Lyon 69364, France.

6. SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA.

7. Stanford University, Stanford, CA 94305, USA.

8. Japan Synchrotron Radiation Research Institute, 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5198, Japan.

9. RIKEN SPring-8 Center, 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5148, Japan.

10. Centre for Earth Evolution and Dynamics, University of Oslo, N-0315 Oslo, Norway.

11. European Synchrotron Radiation Facility, 71 avenue des Martyrs, 38000 Grenoble, France.

12. Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan.

13. Institute of Laser Engineering, Osaka University, Suita, Osaka 565-0871, Japan.

14. Erlangen Centre for Astroparticle Physics, Friedrich-Alexander-Universität Erlangen Nürnberg, Erwin-Rommel-Str 1, 91058 Erlangen, Germany.

15. LULI, CNRS, CEA, Sorbonne Université, Ecole Polytechnique–Institut Polytechnique de Paris, F-91128 Palaiseau, France.

Abstract

Extreme conditions inside ice giants such as Uranus and Neptune can result in peculiar chemistry and structural transitions, e.g., the precipitation of diamonds or superionic water, as so far experimentally observed only for pure C─H and H 2 O systems, respectively. Here, we investigate a stoichiometric mixture of C and H 2 O by shock-compressing polyethylene terephthalate (PET) plastics and performing in situ x-ray probing. We observe diamond formation at pressures between 72 ± 7 and 125 ± 13 GPa at temperatures ranging from ~3500 to ~6000 K. Combining x-ray diffraction and small-angle x-ray scattering, we access the kinetics of this exotic reaction. The observed demixing of C and H 2 O suggests that diamond precipitation inside the ice giants is enhanced by oxygen, which can lead to isolated water and thus the formation of superionic structures relevant to the planets’ magnetic fields. Moreover, our measurements indicate a way of producing nanodiamonds by simple laser-driven shock compression of cheap PET plastics.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

Reference59 articles.

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