Saturation of surface roughening instabilities by plastic deformation

نویسندگان

  • Michael Andersen
  • Nasr Ghoniem
  • Akiyuki Takahashi
چکیده

Surface roughening instabilities driven by a competition between elastic and surface energy contributions are shown to be saturated by plastic energy dissipation. It is shown that these morphological instabilities do not experience unbounded growth as predicted by consideration of elastic energy alone and that their growth is limited by dislocation emission from higher curvature grooves. © 2008 American Institute of Physics. DOI: 10.1063/1.2842412

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تاریخ انتشار 2008