title: Ultrahigh strength of dislocation-free Ni3Al nanocubes.
abstract: Individual Ni(3) Al nanocubes under pressure are investigated by comparing the compressive strength of both dislocation-free and irradiated Ni(3) Al 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.
authors.affiliation: California Institute of Technology, Division of Engineering and Applied Sciences, 1200 E California Blvd, Pasadena, CA 91125, USA. maass@caltech.edu
authors.forename: Robert
authors.initials: R
authors.lastname: Maaß
authors.forename: Lucas
authors.initials: L
authors.lastname: Meza
authors.forename: Bin
authors.initials: B
authors.lastname: Gan
authors.forename: Sammy
authors.initials: S
authors.lastname: Tin
authors.forename: Julia R
authors.initials: JR
authors.lastname: Greer