Skip to main content Accessibility help

The Strength of Gold Nanowires and Nanoporous Gold

  • Rui Dou (a1) and Brian Derby (a2)


We have measured the yield strength of gold nanowires with diameters in the range from 30 to 70 nm fabricated by electro-deposition into porous alumina templates. All nanowire sizes showed yield strengths much greater than polycrystalline gold with the 30 nm specimens having a yield strength of 1.4 GPa. We found no significant work hardening at plastic strains up to 30%. The strength of the nanowires as a function of wire diameter follows the same trend as has been found for the compression strength of larger gold pillars reported in the literature. TEM observations of deformed wires are consistent with mechanisms of dislocation induced deformation. The strength of nanoporous gold nanowires measured by uniaxial compression test is also reported here. Although two different mechanisms are thought to operate in gold nanowires and nanoporous gold respectively, their strengths show very similar dependence on wire or ligament diameter. However the nanoporous material shows significant strain hardening.



Hide All
1. Greer, J.R., Oliver, W.C. and Nix, W.D., Acta Mater. 53 1821 (2005).
2. Greer, J.R. and Nix, W.D., Phys. Rev. B. 73 245410 (2006).
3. Volkert, C.A. and Lilleodden, E.T., Philos. Mag. 86 5567 (2006).
4. Nix, W.D., Greer, J.R., Feng, G. and Lilleodden, E.T., Thin Solid Films 515 3152 (2007).
5. Masuda, H. and Fukuda, K., Science 268 1466 (1995).
6. Masuda, H., Yamada, H., Asoh, M, H., Nakao, M. and Tamamura, T., Appl. Phys. Lett. 71 2770 (1997).
7. Dou, R, and Derby, B.. Scripta Mater. 59 151154 (2008).
8. Gibson, L.J., Ashby, M.F.. Proc. Royal Soc. Lon. A; 382A: 4359 (1982).
9. Park, H.S., Gall, K. and Zimmerman, J.A., J. Mech. Phys. Sol. 54 1862 (2006).
10. Kizuka, T., Phys. Rev. B. 57 11158 (1998).
11. Ashby, M.F.. Philos. Mag. 21:399424. (1970).


Related content

Powered by UNSILO

The Strength of Gold Nanowires and Nanoporous Gold

  • Rui Dou (a1) and Brian Derby (a2)


Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed.