fig7

Figure 7. Distribution of vacancies, GBs, and dislocations at the beginning and final sintering stages for 15 nm NPs with twisted misorientation angles of (A) 36.87^o, (B) 53.15^o for Ag NPs, and (C) 36.87^o, (B) 53.15^o for Cu NPs. Two sintering temperatures of 50%T_m and 70%T_m are included. Green arrows point to GBs. Black arrows highlight GBs with wider spacings between screw dislocations. Light blue arrows point to vacancies. See Supplementary Materials for animations of selected key events. GBs: Grain boundaries; NPs: nanoparticles; T_m: bulk melting points.