Study of surface of early medieval frescoes by micro-PIXE, SEM and Raman spectroscopy
A. Zucchiatti
AbstractThe author has studied the artist’s palette and painting techniques in frescoes of Longobard temple (late eighth to early ninth century) Cividale del Friuli (Italy) crypt San Salvatore Brescia dated from century. High sensitivity microprobes were used such as PIXE, SEM micro-Raman for characterisation materials submillimetre samples. Information multidisciplinary revealed an unexpected richness details gave a clue economic context which two monuments conceived built. In both cases authors found use common traditional well features that distinguish sites. Micro-PIXE analysis led identification earth colours demonstrated few surface preparation. Raman spectroscopy identified carbon based false blue degradation carbonate into gypsum.
Surface Engineering