Ultrahigh strength of dislocation-free Ni3Al nanocubes |
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Authors: | Maaß Robert Meza Lucas Gan Bin Tin Sammy Greer Julia R |
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Affiliation: | California Institute of Technology, Division of Engineering and Applied Sciences, 1200 E California Blvd, Pasadena, CA 91125, USA. maass@caltech.edu |
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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. |
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Keywords: | crystal plasticity mechanical properties size effect nano‐characterization |
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