Discoloration of the smalt pigment: experimental studies andab initio calculations. (Articolo in rivista)

Type
Label
  • Discoloration of the smalt pigment: experimental studies andab initio calculations. (Articolo in rivista) (literal)
Anno
  • 2012-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1039/c2ja30132f (literal)
Alternative label
  • Ilaria Cianchetta, Ivan Colantoni, Fabio Talarico, D'ACAPITO F, Angela Trapananti, Chiara Maurizio, Simona Fantacci, Ivan Davoli (2012)
    Discoloration of the smalt pigment: experimental studies andab initio calculations.
    in Journal of analytical atomic spectrometry (Print)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Ilaria Cianchetta, Ivan Colantoni, Fabio Talarico, D'ACAPITO F, Angela Trapananti, Chiara Maurizio, Simona Fantacci, Ivan Davoli (literal)
Pagina inizio
  • 1941 (literal)
Pagina fine
  • 1948 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://pubs.rsc.org/en/Content/ArticleLanding/2012/JA/c2ja30132f#!divAbstract (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 27 (literal)
Rivista
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • CNR, Universita' roma Tor Vergata, Istituto Centrale per il Restauro (literal)
Titolo
  • Discoloration of the smalt pigment: experimental studies andab initio calculations. (literal)
Abstract
  • Smalt is a blue pigment used by many European artists in mural and easel paintings, mainly in the period from the XV to XVIII century. It is a potassium glass where cobalt is added to the glassy matrix to get the blue hue. The pigment deteriorates with age, changing its colour from an intense blue to a grey hue, causing severe problems in the conservation of the paintings. In this study a set of specimens of smalt dispersed in linseed oil was prepared and artificially aged to simulate the progressive deterioration of the pigment in a painting on canvas. The artificially aged smalt specimens were compared with some samples of naturally aged smalt taken from a banner painted (XV cent.) by Luca Signorelli, the \"Baptism of Jesus\". A multi-technique approach, including SEM-EDX, spectro-colorimetry, X-ray absorption spectroscopy and ab initio calculations, was used to understand the progressive discoloration and to reveal its correlation with changes occurring in the pigment structure. (literal)
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