AVS 53rd International Symposium
    Nanometer-scale Science and Technology Wednesday Sessions
       Session NS+SS+TF-WeM

Paper NS+SS+TF-WeM11
Nanoporous Au - a 3D Network of Ultra-High Strength Nanowires

Wednesday, November 15, 2006, 11:20 am, Room 2016

Session: Nanotribology and Nanomechanics
Presenter: J. Biener, Lawrence Livermore National Laboratory
Authors: J. Biener, Lawrence Livermore National Laboratory
A.M. Hodge, Lawrence Livermore National Laboratory
J.R. Hayes, Lawrence Livermore National Laboratory
M. Duchaineau, Lawrence Livermore National Laboratory
L.A. Zepeda-Ruiz, Lawrence Livermore National Laboratory
A.V. Hamza, Lawrence Livermore National Laboratory
F. Abraham, Lawrence Livermore National Laboratory
Correspondent: Click to Email
Recent mechanical studies on nanoporous gold (np-Au) have revealed that the yield strength of this material is almost one order of magnitude higher than predicted by scaling equations developed for open-cell foams. The higher-than-expected yield strength seems to be linked to the nanoscale morphology of np-Au which can be best described as a three-dimensional network of ultra-high strength Au nanowires. Here, we compare experimental results with molecular dynamics simulations to elucidate the nature of the high yield strength of nanoporous gold. This work was performed under the auspices of the U.S. Department of Energy by University of California, Lawrence Livermore National Laboratory under contract of No.W-7405-Eng-48.