Nanodiamonds from Laser-induced Shock Compression of Polystyrene: Extraction Under Way
Nanodiamonds from Laser-induced Shock Compression of Polystyrene: Extraction Under Way
Schuster, A.; Hartley, N.; Voigt, K.; Zhang, M.; Lütgert, B. J.; Rack, A.; Vorberger, J.; Klemmed, B.; Benad, A.; Schumacher, D.; Tomut, M.; Molares, M. E. T.; Grenzer, J.; Christalle, E.; Hübner, R.; Merchel, S.; Turner, S. J.; Zettl, A.; Gericke, D. O.; Kraus, D.
Abstract
In Uranus and Neptune methane and other hydrocarbons are highly abundant. Their planetary interior conditions can be mimicked using high intensity lasers in the laboratory on a nanosecond timescale. Nanodiamond formation from shock-compressed polystyrene (~150GPa, ~5000K) was demonstrated via in situ X-ray diffraction with a XFEL. The lower size estimate is 4nm. 60% of the carbon atoms in the plastic are
transferred to a diamond lattice. However, in total a maximum of ~16μg of nanodiamonds are expected from a 125nm CH foil and a 500μm focal spot. In order to understand the underlying hydrocarbon separation mechanism the physical recovery of nanodiamonds is pursued to learn from their shape, size, surface modifications and defects.
Keywords: nanodiamonds; recovery; laser-induced shock compression; icy planets
Involved research facilities
- Ion Beam Center DOI: 10.17815/jlsrf-3-159
Related publications
- DOI: 10.17815/jlsrf-3-159 is cited by this (Id 30247) publication
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Poster
8th Joint Workshop on High Pressure, Planetary and Plasma Physics (HP4), 09.-11.10.2019, Dresden, Deutschland
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