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Science 14 February 1997:
Vol. 275. no. 5302, pp. 955 - 957
DOI: 10.1126/science.275.5302.955
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Reports
Atomistic Simulation of Shock Wave-Induced Melting in Argon
A. B. Belonoshko
A three-dimensional molecular dynamics simulation of shock wave
loading was undertaken to investigate the Hugoniot equation of state at
the transition of argon from solid to liquid. The simulated data agree
with shock wave and static high-pressure experimental data. The melting
transition in this simulation occurs without overshooting the argon
melting temperature. There are two discontinuities that may bracket a
mixed-phase region of solid and liquid along the simulated argon
Hugoniot. This is an intrinsic feature of the Hugoniot crossing the
argon melting curve and does not require the addition of any
solid-solid phase transition.
Theoretical Geochemistry Program, Institute of Earth Sciences,
Uppsala University, S-752 36, Uppsala, Sweden.
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