In the prosperous periods, Romans produced Ag-Cu alloys with relatively high silver content for the manufacture of both the external layers and inner nucleus of coins. The use of alloys was common in the flourishing years of the Roman Empire. The results revealed that, contrary to the extended belief, a complex Ag-Cu-Pb-Sn alloy was used. We use, for the first time, a combination of nano-invasive (focused ion beam-field emission scanning electron microscopy-X-ray microanalysis (FIB-FESEM-EDX), voltammetry of microparticles (VIMP)) and destructive techniques (scanning electron microscopy (SEM-EDX) and electron microprobe analysis (EMPA)) along with non-invasive, i. and minted in Rome, Galliae, Orient and Ticinum, have been characterized. A set of ancient Antoninianus silver coins, dating back between 249 and 274 A.D.
0 Comments
Leave a Reply. |