Ultrahigh strength of dislocation-free Ni3Al nanocubes

Robert Maaß, Lucas Meza, Bin Gan, Sammy Tin, Julia R. Greer

Research output: Contribution to journalArticlepeer-review


Individual Ni3Al nanocubes under pressure are investigated by comparing the compressive strength of both dislocation-free and irradiated Ni3Al nanocubes. The results are dicussed in light of the size-dependent and size-independent strength of face-centered cubic (fcc) nanocrystals in the framework of dislocation nucleation at free surfaces. This study sheds more light on the understanding of fundamental deformation mechanisms and size-affected strength in dislocation-free metallic nanocrystals.

Original languageEnglish (US)
Pages (from-to)1869-1875
Number of pages7
Issue number12
StatePublished - Jun 25 2012
Externally publishedYes


  • crystal plasticity
  • mechanical properties
  • nano-characterization
  • size effect

ASJC Scopus subject areas

  • Engineering (miscellaneous)
  • General Chemistry
  • General Materials Science
  • Biotechnology
  • Biomaterials


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