Figure 4

Snapshots showing microstructural features of (from L-R) the full system, particle and substrate respectively for velocities v_i = 1000 m/s at t = 8 ns (a–c), v_i = 1300 m/s at t = 6 ns (d–f) and v_i = 1600 m/s at t = 6 ns (g–i). The atom colors are the same as in Fig. 3.