Published September 11, 2013
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Nanometallic Glasses: Size Reduction Brings Ductility, Surface State Drives Its Extent
Abstract
We report tensile experiments on Ni_(80)P_20 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 Ni_(80)Al_20 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.
Additional Information
© 2013 American Chemical Society. Received: June 28, 2013; revised: August 17, 2013; published: August 26, 2013. The authors gratefully acknowledge the financial support of the U.S. Department of Energy, Office of the Basic Energy Sciences and NASA's Space Technology Research Grants Program through J.R.G.'s Early Career grants. The authors also acknowledge support and infrastructure provided by the Kavli Nanoscience Institute (KNI) at Caltech. All computations were carried out on the SHC computers (Caltech Center for Advanced Computing Research) provided by the Department of Energy National Nuclear Security Administration PSAAP project at Caltech (DE-FC52-08NA28613) and by the NSF DMR-0520565 CSEM computer cluster. This material is based upon work supported by the National Science Foundation Graduate Research Fellowship under Grant No. DGE-1144469. Any opinion, findings, and conclusions or recommendations expressed in the material are those of the authors(s) and do not necessarily reflect the views of the National Science Foundation.Attached Files
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Additional details
- Eprint ID
- 43807
- Resolver ID
- CaltechAUTHORS:20140213-094643087
- NASA
- Kavli Nanoscience Institute
- DE-FC52-08NA28613
- Department of Energy (DOE) National Nuclear Security Administration
- DMR-0520565
- NSF
- DGE-1144469
- NSF Graduate Research Fellowship
- Created
-
2014-02-13Created from EPrint's datestamp field
- Updated
-
2021-11-10Created from EPrint's last_modified field
- Caltech groups
- Kavli Nanoscience Institute