3. Results
3.1. Coating appearance and morphology
Fig. 1 shows the visual appearance and the surface morphology
of the uncoated, 0 Ag, 0.3 Ag and 3.0 Ag specimens. It can be seen
that Ag-bearing coatings exhibit a brown color as compared with
the white–grey Ag-free coatings. The brown color is attributed to
the Ag content and increases in intensity with increasing the