Fig. 9

The AFM images of the surface of Ti-6Al-4V: (a) before etching, (b) after etching, and the surface of coatings: (c) pure HA, (d) HA/T, (e) 5Co/HA/T, (f) 10Co/HA/T, and (g) 20Co/HA/T.

The AFM images of the surface of Ti-6Al-4V: (a) before etching, (b) after etching, and the surface of coatings: (c) pure HA, (d) HA/T, (e) 5Co/HA/T, (f) 10Co/HA/T, and (g) 20Co/HA/T.