Skip to main content

Size effects on elasticity, yielding, and fracture of silver nanowires: In situ experiments

Publication ,  Journal Article
Zhu, Y; Qin, Q; Xu, F; Fan, F; Ding, Y; Zhang, T; Wiley, BJ; Wang, ZL
Published in: Physical Review B - Condensed Matter and Materials Physics
January 30, 2012

This paper reports the quantitative measurement of a full spectrum of mechanical properties of fivefold twinned silver (Ag) nanowires (NWs), including Young's modulus, yield strength, and ultimate tensile strength. In-situ tensile testing of Ag NWs with diameters between 34 and 130 nm was carried out inside a scanning electron microscope (SEM). Young's modulus, yield strength, and ultimate tensile strength all increased as the NW diameter decreased. The maximum yield strength in our tests was found to be 2.64 GPa, which is about 50 times the bulk value and close to the theoretical value of Ag in the 110 orientation. The size effect in the yield strength is mainly due to the stiffening size effect in the Young's modulus. Yield strain scales reasonably well with the NW surface area, which reveals that yielding of Ag NWs is due to dislocation nucleation from surface sources. Pronounced strain hardening was observed for most NWs in our study. The strain hardening, which has not previously been reported for NWs, is mainly attributed to the presence of internal twin boundaries. © 2012 American Physical Society.

Duke Scholars

Altmetric Attention Stats
Dimensions Citation Stats

Published In

Physical Review B - Condensed Matter and Materials Physics

DOI

EISSN

1550-235X

ISSN

1098-0121

Publication Date

January 30, 2012

Volume

85

Issue

4

Related Subject Headings

  • Fluids & Plasmas
  • 09 Engineering
  • 03 Chemical Sciences
  • 02 Physical Sciences
 

Citation

APA
Chicago
ICMJE
MLA
NLM
Zhu, Y., Qin, Q., Xu, F., Fan, F., Ding, Y., Zhang, T., … Wang, Z. L. (2012). Size effects on elasticity, yielding, and fracture of silver nanowires: In situ experiments. Physical Review B - Condensed Matter and Materials Physics, 85(4). https://doi.org/10.1103/PhysRevB.85.045443
Zhu, Y., Q. Qin, F. Xu, F. Fan, Y. Ding, T. Zhang, B. J. Wiley, and Z. L. Wang. “Size effects on elasticity, yielding, and fracture of silver nanowires: In situ experiments.” Physical Review B - Condensed Matter and Materials Physics 85, no. 4 (January 30, 2012). https://doi.org/10.1103/PhysRevB.85.045443.
Zhu Y, Qin Q, Xu F, Fan F, Ding Y, Zhang T, et al. Size effects on elasticity, yielding, and fracture of silver nanowires: In situ experiments. Physical Review B - Condensed Matter and Materials Physics. 2012 Jan 30;85(4).
Zhu, Y., et al. “Size effects on elasticity, yielding, and fracture of silver nanowires: In situ experiments.” Physical Review B - Condensed Matter and Materials Physics, vol. 85, no. 4, Jan. 2012. Scopus, doi:10.1103/PhysRevB.85.045443.
Zhu Y, Qin Q, Xu F, Fan F, Ding Y, Zhang T, Wiley BJ, Wang ZL. Size effects on elasticity, yielding, and fracture of silver nanowires: In situ experiments. Physical Review B - Condensed Matter and Materials Physics. 2012 Jan 30;85(4).

Published In

Physical Review B - Condensed Matter and Materials Physics

DOI

EISSN

1550-235X

ISSN

1098-0121

Publication Date

January 30, 2012

Volume

85

Issue

4

Related Subject Headings

  • Fluids & Plasmas
  • 09 Engineering
  • 03 Chemical Sciences
  • 02 Physical Sciences