Figure 21

Scanning electron microscopy (SEM) images of the control socket at various magnifications: (a) × 1.5 k; (b) × 2.5 k; (c) 5 k.
Scanning electron microscopy (SEM) images of the control socket at various magnifications: (a) × 1.5 k; (b) × 2.5 k; (c) 5 k.