Monuments, where stone and metals or metallic alloys are used together, are very frequently met in all historical periods and in all countries. In the case of bronze and other copper alloys, their corrosion products can be dissolved by the action of acid rain and thus reach the porous building materials in contact with (or near to) the metallic structures. Once absorbed by the stone, they precipitate on the external stone surface and inside its porous space. As the majority of these products are coloured, their precipitates may produce stains, which are perceived as unpleasant alterations of the original ‘values’ of the stone monuments. The removal of stains is therefore required on the occasion of conservation treatments. The paper reports on the characterisation of copper corrosion products found on two, very different, monuments in Rome: ‘Fontana delle Tartarughe’ (by T. Landini, last quarter of the 16th century) and ‘Statua dello Studente’ (by A. Cataldi, 1920). To identify the speciation of copper compounds in their carbonate matrices, different techniques [X‐ray diffraction, X‐ray fluorescence, SEM/energy‐dispersive X‐ray spectroscopy (EDS), micro‐Raman and XPS] had to be employed. To further confirm the identification of the chemical species, SEM/EDS data were also processed by principal component analysis. Copyright © 2013 John Wiley & Sons, Ltd.

Analytical characterization of corrosion products of copper and its alloys on stained stone surfaces / Macchia, Andrea; Laurenzi Tabasso, Marisa; Salvi, A. M.; Sammartino, Maria Pia; Mangialardo, Sara; Dore, Paolo; Postorino, Paolo. - In: SURFACE AND INTERFACE ANALYSIS. - ISSN 0142-2421. - STAMPA. - 45:7(2013), pp. 1073-1080. [10.1002/sia.5220]

Analytical characterization of corrosion products of copper and its alloys on stained stone surfaces

Macchia, Andrea
;
Laurenzi Tabasso, Marisa;Sammartino, Maria Pia;Mangialardo, Sara;Dore, Paolo;Postorino, Paolo
2013

Abstract

Monuments, where stone and metals or metallic alloys are used together, are very frequently met in all historical periods and in all countries. In the case of bronze and other copper alloys, their corrosion products can be dissolved by the action of acid rain and thus reach the porous building materials in contact with (or near to) the metallic structures. Once absorbed by the stone, they precipitate on the external stone surface and inside its porous space. As the majority of these products are coloured, their precipitates may produce stains, which are perceived as unpleasant alterations of the original ‘values’ of the stone monuments. The removal of stains is therefore required on the occasion of conservation treatments. The paper reports on the characterisation of copper corrosion products found on two, very different, monuments in Rome: ‘Fontana delle Tartarughe’ (by T. Landini, last quarter of the 16th century) and ‘Statua dello Studente’ (by A. Cataldi, 1920). To identify the speciation of copper compounds in their carbonate matrices, different techniques [X‐ray diffraction, X‐ray fluorescence, SEM/energy‐dispersive X‐ray spectroscopy (EDS), micro‐Raman and XPS] had to be employed. To further confirm the identification of the chemical species, SEM/EDS data were also processed by principal component analysis. Copyright © 2013 John Wiley & Sons, Ltd.
2013
stone surface staining; surface characterization; copper corrosion products; limestone conservation; cleaning procedures
01 Pubblicazione su rivista::01a Articolo in rivista
Analytical characterization of corrosion products of copper and its alloys on stained stone surfaces / Macchia, Andrea; Laurenzi Tabasso, Marisa; Salvi, A. M.; Sammartino, Maria Pia; Mangialardo, Sara; Dore, Paolo; Postorino, Paolo. - In: SURFACE AND INTERFACE ANALYSIS. - ISSN 0142-2421. - STAMPA. - 45:7(2013), pp. 1073-1080. [10.1002/sia.5220]
File allegati a questo prodotto
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/983759
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 8
  • ???jsp.display-item.citation.isi??? 6
social impact