Articolo in rivista, 2023, ENG, 10.3390/heritage6120395
Petiti C.; Salvadori B.; Vettori S.; Welter J.M.; Guzmán García Lascurain P.; Toniolo L.; Goidanich S.
Politecnico di Milano, Department of Chemistry, Materials and Chemical Engineering "Giulio Natta", Milano, Italy; CNR-ISPC, Florence, Italy; CNR-ISPC, Florence, Italy; Independent Researcher, Luxembourg, Luxembourg; Politecnico di Milano, Department of Chemistry, Materials and Chemical Engineering "Giulio Natta", Milano, Italy; Politecnico di Milano, Department of Chemistry, Materials and Chemical Engineering "Giulio Natta", Milano, Italy; Politecnico di Milano, Department of Chemistry, Materials and Chemical Engineering "Giulio Natta", Milano, Italy
The Colossus of San Carlo Borromeo, named San Carlone for its large dimensions, represents a unique opportunity to study the long-term effects of atmospheric corrosion on patina formation on historic copper sheets. The sculpture's large dimensions, complex geometry, direct visitor interaction, and exposure conditions generate different microclimates. The purpose of this study is to understand how and to what extent these microclimates affect the formation of the copper patinas. The results show that microclimates play a key role in patina formation: in external surfaces exposed to rain, the main constituent is brochantite, whereas a wider variety of corrosion products have been found in sheltered and internal surfaces, such as antlerite, atacamite, copper oxalate, posnjakite, and anglesite.
Heritage (Basel) Online 6 , pp. 7531–7546
historic copper, patina of corrosion layers, atmospheric corrosion, cultural heritage, long term patina formation
Salvadori Barbara, Vettori Silvia
ID: 489607
Year: 2023
Type: Articolo in rivista
Creation: 2023-12-07 19:17:48.000
Last update: 2023-12-14 12:25:04.000
CNR authors
CNR institutes
External IDs
CNR OAI-PMH: oai:it.cnr:prodotti:489607
DOI: 10.3390/heritage6120395