Figure 2
From: Fabrication of Ni-Ti-O nanotube arrays by anodization of NiTi alloy and their potential applications
Surface and cross-sectional FE-SEM images of Ni-Ti-O NTAs formed in ethylene glycol with 0.2 wt% NH4F and 0.5 vol% H2O at 25 V at different anodization temperature.
(a) 10°C, (b) 20°C, (c) 30°C, (d) 40°C and (e) 50°C for 1 h. Variation in the diameter and length of the NTs as a function of anodization temperature (f).
