Figure 2. Facture behavior and intrinsic mechanical properties of a five-fold Ag NW.

(a) SEM snapshots during the tensile deformation of a <110> Ag NW captured from Supplementary Movie S1, showing the entire tensile process of the Ag NW until final fracture. (b) TEM images showing fracture behavior of the 5-fold single Ag NW: (b1) Before deformation, (b2) a necking phenomenon at a local region, (b3) a fractographic image of Ag NW and (d3-2) a selected area diffraction (SAD) pattern of a magnified image (b3-1), showing various fragmented spots. (c) Yield stress and fracture strain versus the diameter of Ag NWs that have been reported so far, which are comparable to our experimental values with the reported values. In the inset, a strain-stress curve implies that the smaller Ag NW exhibits the higher ductility in Region 1 (Supplementary Table S2).