Anodic Fabrication of Ti-Nb-Zr-O Nanotube Arrays

Figure 4

SEM images of Ti-Nb-Zr-O nanotubes grown on different Ti-Nb-Zr alloy substrates at 40 V with a constant frequency of 2000 Hz and duty cycle of 20% for 90 minutes, (a) Ti35Nb5Zr, (b) Ti35Nb10Zr, and (c) Ti35Nb15Zr.

(a)

(b)

(c)