Author:
Heuser Ben,Bergermann Armin,Stevenson Michael G.,Ranjan Divyanshu,He Zhiyu,Lütgert Julian,Schumacher Samuel,Bethkenhagen Mandy,Descamps Adrien,Galtier Eric,Gleason Arianna E.,Khaghani Dimitri,Glenn Griffin D.,Cunningham Eric F.,Glenzer Siegfried H.,Hartley Nicholas J.,Hernandez Jean-Alexis,Humphries Oliver S.,Katagiri Kento,Lee Hae Ja,McBride Emma E.,Miyanishi Kohei,Nagler Bob,Ofori-Okai Benjamin,Ozaki Norimasa,Pandolfi Silvia,Qu Chongbing,May Philipp Thomas,Redmer Ronald,Schoenwaelder Christopher,Sueda Keiichi,Yabuuchi Toshinori,Yabashi Makina,Lukic Bratislav,Rack Alexander,Zinta Lisa M. V.,Vinci Tommaso,Benuzzi-Mounaix Alessandra,Ravasio Alessandra,Kraus Dominik
Abstract
AbstractLaser-driven dynamic compression experiments of plastic materials have found surprisingly fast formation of nanodiamonds (ND) via X-ray probing. This mechanism is relevant for planetary models, but could also open efficient synthesis routes for tailored NDs. We investigate the release mechanics of compressed NDs by molecular dynamics simulation of the isotropic expansion of finite size diamond from different P-T states. Analysing the structural integrity along different release paths via molecular dynamic simulations, we found substantial disintegration rates upon shock release, increasing with the on-Hugnoiot shock temperature. We also find that recrystallization can occur after the expansion and hence during the release, depending on subsequent cooling mechanisms. Our study suggests higher ND recovery rates from off-Hugoniot states, e.g., via double-shocks, due to faster cooling. Laser-driven shock compression experiments of polyethylene terephthalate (PET) samples with in situ X-ray probing at the simulated conditions found diamond signal that persists up to 11 ns after breakout. In the diffraction pattern, we observed peak shifts, which we attribute to thermal expansion of the NDs and thus a total release of pressure, which indicates the stability of the released NDs.
Funder
China Scholarship Council
GSI Helmholtzzentrum für Schwerionenforschung
Deutsche Forschungsgemeinschaft
DOE Office of Science, Fusion Energy Science
DOE
DOE NNSA SSGF
Helmholtz-Zentrum Dresden - Rossendorf e.V.
Publisher
Springer Science and Business Media LLC
Cited by
1 articles.
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