Elasticity and plasticity of nanoporous gold: implications of molecular dynamics simulations
Title Granting Institution
Technische Universität Hamburg-Harburg
Place of Title Granting Institution
Molecular dynamics simulations of compression tests on virtual nanoporous gold samples created by mimicking spinodal decomposition via Monte Carlo simulations reveal an anomalously compliant and weak behavior. This behavior, while in good agreement with experimental data of millimeter-sized dealloyed nanoporous gold, changes drastically once the network connectivity is varied. Topological disorder due to nodal shift also impacts the effective behavior of the material. Yet, on top of the above-mentioned topological descriptors or the solid fraction, atomistic processes, such as dislocation activity and surface effects, must be taken into account in order to explain the observed behavior of the material.
Elasticity and platicity at the nanoscale