Biomaterials for Bone Regeneration

254 Biomaterials for Bone Regeneration

in the corrosion behaviour depending on the type of solution (Feyerabend

et al ., 2012; Kirkland et al ., 2012a, b; Tie et al ., 2010; Yang and Zhang, 2009;

Yang et al ., 2012). Some key in uencing factors are summarized in Fig. 8.12.

It has to be noted that there are cross-reactions between the factors (e.g.

the buffer capacity of a medium in uencing the change in pH), but for clar-

ity this is not included.

A very recent study attempted to assess the importance of the differ-

ent factors by simulating corrosion using arti cial neural networks (ANN)

(Willumeit et al ., 2013). In this study, CO