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Nano Lett. 2013 Sep 11;13(9):4462-8. doi: 10.1021/nl402384r. Epub 2013 Aug 30.

Nanometallic glasses: size reduction brings ductility, surface state drives its extent.

Author information

1
Division of Engineering and Applied Sciences and ‡Department of Chemistry and Chemical Engineering, California Institute of Technology , Pasadena, California 91106, United States.

Abstract

We report tensile experiments on Ni80P20 metallic glass samples fabricated via a templated electroplating process and via focused ion beam milling, which differed only in their surface energy states: Ga-ion-irradiated and as-electroplated. Molecular dynamics simulations on similar Ni80Al20 systems corroborate the experimental results, which suggest that the transition from brittle to ductile behavior is driven by sample size, while the extent of ductility is driven by surface state.

PMID:
23978318
DOI:
10.1021/nl402384r
[Indexed for MEDLINE]

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