Many works of art are complex systems consisting of a core finished by the overlapping of several painted layers. In this work, we apply an innovative method based on grazing incidence X-ray diffraction (GIXRD) with synchrotron radiation (SR) to investigate polychrome stratigraphies with a completely non-destructive approach. The SR-GIXRD measurements provided direct and unambiguous compositional and stratigraphic information of the crystalline species lying in different layers. The investigations performed on a small fragment sampled from a painted terracotta statue allowed identifying pigments, fillers, aggregates of the matrix and newly formed decay salts in micrometric-thin paint layers. Furthermore, the great potentiality of this study is the feasibility of depth profile investigations on multi-layered painted samples from Cultural Heritage objects without resorting to cross sectional analyses. Currently, the method is non-destructive but it can be potentially non-invasive in situations where small moveable artworks can be placed into the measurement chamber of the SR-XRD beamlines. The overall study paves the way to a new scenario of artwork investigations, shading light on new unexplored approaches for non-destructive studies of Cultural Heritage objects, their conservation history and their interaction with the environment.
What’s underneath? : A non-destructive depth profile of painted stratigraphies by synchrotron grazing incidence X-ray diffraction / E. Possenti, C. Colombo, C. Conti, L. Gigli, M. Merlini, J.R. Plaisier, M. Realini, G.D. Gatta. - In: ANALYST. - ISSN 0003-2654. - 142:18(2018 Sep), pp. 4290-4297.
What’s underneath? : A non-destructive depth profile of painted stratigraphies by synchrotron grazing incidence X-ray diffraction
E. Possenti
Primo
;M. Merlini;G.D. GattaUltimo
2018
Abstract
Many works of art are complex systems consisting of a core finished by the overlapping of several painted layers. In this work, we apply an innovative method based on grazing incidence X-ray diffraction (GIXRD) with synchrotron radiation (SR) to investigate polychrome stratigraphies with a completely non-destructive approach. The SR-GIXRD measurements provided direct and unambiguous compositional and stratigraphic information of the crystalline species lying in different layers. The investigations performed on a small fragment sampled from a painted terracotta statue allowed identifying pigments, fillers, aggregates of the matrix and newly formed decay salts in micrometric-thin paint layers. Furthermore, the great potentiality of this study is the feasibility of depth profile investigations on multi-layered painted samples from Cultural Heritage objects without resorting to cross sectional analyses. Currently, the method is non-destructive but it can be potentially non-invasive in situations where small moveable artworks can be placed into the measurement chamber of the SR-XRD beamlines. The overall study paves the way to a new scenario of artwork investigations, shading light on new unexplored approaches for non-destructive studies of Cultural Heritage objects, their conservation history and their interaction with the environment.File | Dimensione | Formato | |
---|---|---|---|
2018 Whats underneath.pdf
accesso riservato
Tipologia:
Publisher's version/PDF
Dimensione
1.54 MB
Formato
Adobe PDF
|
1.54 MB | Adobe PDF | Visualizza/Apri Richiedi una copia |
2018 Whats underneath.pdf
accesso aperto
Descrizione: Versione accettata dall'editore per la stampa
Tipologia:
Post-print, accepted manuscript ecc. (versione accettata dall'editore)
Dimensione
531.75 kB
Formato
Adobe PDF
|
531.75 kB | Adobe PDF | Visualizza/Apri |
Pubblicazioni consigliate
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.