Effect of Temperature of Oxalic Acid on the Fabrication of Porous Anodic Alumina from Al-Mn Alloys

Figure 2

Top view SEM images of PAA anodised in 0.5 M oxalic acid of (a) 5°C, (b) 10°C, (c) 15°C, (d) 20°C, and (e) 25°C.

(a)

(b)

(c)

(d)

(e)