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Size Effects on the Mechanical Behavior of Nanoporous Au
Abstract
Recent nanomechanical tests on submicron metal columns and wires have revealed a dramatic increase in yield strength with decreasing sample size. Here, we demonstrate that nanoporous metal foams can be envisioned as a three-dimensional network of ultrahigh-strength nanowires, thus bringing together two seemingly conflicting properties: high strength and high porosity. Specifically, we characterized the size-dependent mechanical properties of nanoporous gold using a combination of nanoindentation, column microcompression, and molecular dynamics simulations. We find that nanoporous gold can be as strong as bulk Au, despite being a highly porous material, and that the ligaments in nanoporous gold approach the theoretical yield strength of Au.
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Cites
14 C Dates from Tel Rehov: Iron-Age Chronology, Pharaohs, and Hebrew Kings
Bruins, H. J., van der Plicht, J., & Mazar, A. (2003) · Science · doi:10.1126/science.1082776 · Cited by 114
Cited by
Generalized Fabrication of Nanoporous Metals (Au, Pd, Pt, Ag, and Cu) through Chemical Dealloying
Zhang, Z., Wang, Y., Qi, Z., Zhang, W., Qin, J., & Frenzel, J. (2009) · The Journal of Physical Chemistry C · doi:10.1021/jp811445a · Cited by 455
Surface stress effect in mechanics of nanostructured materials
Wang, J., Huang, Z., Duan, H., Yu, S., Feng, X., Wang, G., Zhang, W., & Wang, T. (2011) · Acta Mechanica Solida Sinica · doi:10.1016/s0894-9166(11)60009-8 · Cited by 349
Nanoporous gold: a new material for catalytic and sensor applications
Wittstock, A., Biener, J., & Bäumer, M. (2010) · Physical Chemistry Chemical Physics · doi:10.1039/c0cp00757a · Cited by 337
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Metadata
- Authors
- Biener, J., Hodge, A. M., Hayes, J. R., Volkert, C. A., Zepeda-Ruiz, L. A., Hamza, A. V., & Abraham, F. F.
- Venue
- Nano Letters
- Publisher
- American Chemical Society (ACS)
- Published
- 2006-09-26
- Volume
- 6
- Issue
- 10
- Pages
- 2379-2382
- ISSN
- 1530-6984 (ISSN-L)
- 1530-6992
- OpenAlex
- W2097803127
- Cited by
- 472
- References
- 1
- FWCI
- 10.20
- Type
- journal article
- Language
- en
- Open access
- closed
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- Biener, J., Hodge, A. M., Hayes, J. R., Volkert, C. A., Zepeda-Ruiz, L. A., Hamza, A. V., & Abraham, F. F. (2006). Size Effects on the Mechanical Behavior of Nanoporous Au. Nano Letters. https://doi.org/10.1021/nl061978i
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