Morphological stability of Cu-Nb nanocomposites under high-energy collision cascades Academic Article uri icon

abstract

  • We use molecular dynamics and phase field simulations to demonstrate that Cu-Nb multilayered nanocomposites with individual layer thicknesses above 2-4 nm remain morphologically stable when subjected to 100 keV collision cascades, characteristic of neutron or heavy ion irradiation. The probability of morphological instability rapidly increases as the layer thickness decreases to 1 nm, which we attribute to overlap of zones of liquid-like interdiffusion inside radiation-induced thermal spikes at neighboring interfaces in the multilayer. © 2013 AIP Publishing LLC.

author list (cited authors)

  • Zhang, L., & Demkowicz, M. J.

citation count

  • 14

publication date

  • August 2013