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Published June 2, 2011 | public
Journal Article

Atomistic Characterization of Stochastic Cavitation of a Binary Metallic Liquid under Negative Pressure


We demonstrate the stochastic nature of cavitation in a binary metallic liquid Cu_(46)Zr_(54) during hydrostatic expansion by employing molecular dynamics (MD) simulations using a quantum mechanics (QM)-derived potential. The activation volume is obtained from MD simulations and transition-state theory. Extrapolation of the pressure dependence of the activation volume from our MD simulations to low tensile pressure agrees remarkably with macroscale cavitation experiments. We find that classical nucleation theory can predict the cavitation rate if we incorporate the Tolman length derived from the MD simulations.

Additional Information

© 2011 American Chemical Society. Received: March 15, 2011 Accepted: May 12, 2011. Published in issue June 02, 2011. Article ASAP May 16, 2011. Just accepted manuscript May 12, 2011. Q.A., W.A.G., G.G., and W.L.J. would like to thank NSF DMR-0520565 Caltech CSEM for support. K.S. is grateful for support by the DFG via the SFB 602 and the Leibniz-Program. S.N.L. is supported by the ASC program at LANL.

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