Review Article
Surface Activation and Pretreatments for Biocompatible Metals and Alloys Used in Biomedical Applications
Figure 3
SEM images of chemically treated Ti in (a) NaOH, (b) H3PO4 + H2O2 solution, and (c) electrochemically treated in NH4F + glycerol + water electrolyte (20V for 2 h) [38].