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 24nm remain morphologically stable when subjected to 100keV collision cascades, characteristic of neutron or heavy ion irradiation. The probability of morphological instability rapidly increases as the layer thickness decreases to 1nm, which we attribute to overlap of zones of liquid-like interdiffusion inside radiation-induced thermal spikes at neighboring interfaces in the multilayer.

published proceedings

  • Applied Physics Letters

author list (cited authors)

  • Zhang, L., & Demkowicz, M. J.

citation count

  • 19

complete list of authors

  • Zhang, Liang||Demkowicz, Michael J

publication date

  • August 2013