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Size Effect Suppresses Brittle Failure in Hollow Cu_(60)Zr_(40) Metallic Glass Nanolattices Deformed at Cryogenic Temperatures

Lee, Seok-Woo and Jafary-Zadeh, Mehdi and Chen, David Z. and Zhang, Yong-Wei and Greer, Julia R. (2015) Size Effect Suppresses Brittle Failure in Hollow Cu_(60)Zr_(40) Metallic Glass Nanolattices Deformed at Cryogenic Temperatures. Nano Letters, 15 (9). pp. 5673-5681. ISSN 1530-6984. http://resolver.caltech.edu/CaltechAUTHORS:20150824-125516097

[img] Video (AVI) (Movie 1: In situ uniaxial compression of Cu60Zr40 nanolattice with the tube-wall thickness of 120 nm at 298 K) - Supplemental Material
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[img] Video (AVI) (Movie 2: In situ uniaxial compression of Cu60Zr40 nanolattice with the tube-wall thickness of 60 nm at 298 K) - Supplemental Material
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[img] Video (AVI) (Movie 3: In situ uniaxial compression of Cu60Zr40 nanolattice with the tube-wall thickness of 120 nm at 130 K) - Supplemental Material
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[img] Video (AVI) (Movie 4: In situ uniaxial compression of Cu60Zr40 nanolattice with the tube-wall thickness of 60 nm at 130 K) - Supplemental Material
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[img] Video (AVI) (Movie 5: In situ uniaxial compression of Cu60Zr40 nanolattice with the tube-wall thickness of 20 nm at 298 K) - Supplemental Material
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[img] Video (AVI) (Movie 6: In situ uniaxial compression of Cu60Zr40 nanolattice with the tube-wall thickness of 20 nm at 130 K) - Supplemental Material
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[img] PDF (PDF File 1: Stress–strain data of Cu60Zr40 nanolattice with the tube-wall thickness of 20 nm at 298 and 130 K) - Supplemental Material
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[img] Video (AVI) (Movie 7: MD simulation of failure mechanism in Sample A at 130 K, corresponding to Figure 4a2) - Supplemental Material
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[img] Video (AVI) (Movie 8: MD simulation of failure mechanism in Sample A at 300 K, corresponding to Figure 4a3) - Supplemental Material
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[img] Video (AVI) (Movie 9: MD simulation of failure mechanism in Sample B at 130 K, corresponding to Figure 4b2) - Supplemental Material
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[img] Video (AVI) (Movie 10: MD simulation of failure mechanism in Sample B at 300 K, corresponding to Figure 4b3) - Supplemental Material
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[img] Video (AVI) (Movie 11: MD simulation of failure mechanism in Sample C at 130 K, corresponding to Figure 4c2) - Supplemental Material
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[img] Video (AVI) (Movie 12: MD simulation of failure mechanism in Sample C at 300 K, corresponding to Figure 4c3) - Supplemental Material
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[img] PDF (PDF File 2: The linear dependence of temperature on the strength of Cu–Zr MGs) - Supplemental Material
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[img] Video (AVI) (Movie 13: MD simulation of complete shape recovery of the buckled Sample C (strain, ε = 0.032)) - Supplemental Material
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Abstract

To harness “smaller is more ductile” behavior emergent at nanoscale and to proliferate it onto materials with macroscale dimensions, we produced hollow-tube Cu_(60)Zr_(40) metallic glass nanolattices with the layer thicknesses of 120, 60, and 20 nm. They exhibit unique transitions in deformation mode with tube-wall thickness and temperature. Molecular dynamics simulations and analytical models were used to interpret these unique transitions in terms of size effects on the plasticity of metallic glasses and elastic instability.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1021/acs.nanolett.5b01034DOIArticle
http://pubs.acs.org/doi/abs/10.1021/acs.nanolett.5b01034PublisherArticle
http://pubs.acs.org/doi/suppl/10.1021/acs.nanolett.5b01034PublisherSupporting Information
ORCID:
AuthorORCID
Greer, Julia R.0000-0002-9675-1508
Alternate Title:Size Effect Suppresses Brittle Failure in Hollow Cu60Zr40Metallic Glass Nanolattices Deformed at Cryogenic Temperatures
Additional Information:© 2015 American Chemical Society. Received: March 16, 2015; Revised: August 11, 2015; Publication Date (Web): August 11, 2015. The authors gratefully acknowledge the financial support of the NASA’s Space Technology Research Grants Program through J.R.G.’s Early Career grant. The authors also acknowledge support and infrastructure provided by the Kavli Nanoscience Institute (KNI) at Caltech. 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. M.J.-Z. and Y.-W.Z. gratefully acknowledge the financial support from the Agency for Science, Technology and Research (A*STAR), Singapore and the use of computing resources at the A*STAR Computational Resource Centre, Singapore. Author Contributions: S.-W.L. fabricated the Cu_(60)Zr_(40) metallic glass nanolattices and carried out the in situ tensile experiments, EDX, SEM, and TEM analysis. D.Z.C. performed EDX analysis and trained S.-W.L. on nanolattices fabrication techniques including two-photon lithography and sputter deposition. M.J.-Z. and Y.-W.Z. developed and performed the MD simulations. S.-W.L., D.Z.C., and J.R.G. interpreted the results, and S.-W.L. wrote the manuscript with input from D.Z.C., J.R.G., M.J.-Z., and Y.-W.Z. S.-W.L. designed the experiments, and J.R.G. supervised the project. M.J.-Z. and Y.-W.Z. designed the simulations. Funding was provided by NASA Early Career Grant National Science Foundation Graduate Research Fellowship under Grant No. DGE-1144469. The authors declare no competing financial interest.
Group:Kavli Nanoscience Institute
Funders:
Funding AgencyGrant Number
NASAUNSPECIFIED
Kavli Nanoscience InstituteUNSPECIFIED
NSF Graduate Research FellowshipDGE-1144469
Agency for Science, Technology and Research (A*STAR)UNSPECIFIED
Record Number:CaltechAUTHORS:20150824-125516097
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20150824-125516097
Official Citation:Size Effect Suppresses Brittle Failure in Hollow Cu60Zr40 Metallic Glass Nanolattices Deformed at Cryogenic Temperatures Seok-Woo Lee, Mehdi Jafary-Zadeh, David Z. Chen, Yong-Wei Zhang, and Julia R. Greer Nano Letters 2015 15 (9), 5673-5681 DOI: 10.1021/acs.nanolett.5b01034
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:59851
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:24 Aug 2015 23:09
Last Modified:15 Oct 2015 23:21

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