Figure 3: Compressive deformation of Au [110] nanowires by dislocation slip processes. | Nature Communications

Figure 3: Compressive deformation of Au [110] nanowires by dislocation slip processes.

From: Reversible cyclic deformation mechanism of gold nanowires by twinning–detwinning transition evidenced from in situ TEM

Figure 3

(a) TEM DF image showing the emission of half-loop shaped dislocations (yellow arrows) as the contract area broadened. In addition, ordinary dislocation slip occurred through nucleation-glide-escape processes of perfect dislocations, leaving the slip steps along the inclined (c) and (d) planes (orange arrows). Scale bar, 100 nm. (b) MD simulation showing the emission of half-loops (yellow arrow) and ordinary dislocation slip (orange arrows) along the inclined (c) and (d) planes during the initial compression (the flat punch indenter is not shown). The top view image at a perspective angle clearly shows that the moving arms of half-loop shaped dislocations terminate at side surfaces. Scale bar, 20 nm.

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