Figure 6
From: FIB-FESEM and EMPA results on Antoninianus silver coins for manufacturing and corrosion processes
Optical microscopy (OM) photograph of Sev1 highlight golden areas on the surface (a). Secondary electron image of a trench performed with FIB-FESEM in the same area is shown in figure (b) and then the trench shows the porous morphology of Hg-Ag amalgam on the coin surface in (c). Optical (d) and secondary electron images of the trench performed with FIB-FESEM in the same area of figure (e) of Cla312. The trench shows the Pb square structure in the ψ analyzed area. Trench image width 18.5 μm.
