Yellow pigments in painting: characterisation and UV laser-induced modifications
Anno: 2009
Autori: Acquaviva S., Baraldi P., D’Anna E., De Giorgi M.L., Della Patria A., Giotta L., Omarini S., Piccolo R.
Affiliazione autori: INOA, CNR, Cultural Heritage Grp, Lecce, Italy; Univ Salento, Dept Phys, Lecce, Italy; Univ Modena & Reggio Emilia, Dept Chem, Modena, Italy; Univ Salento, Dept Mat Sci, Lecce, Italy.
Abstract: Artistic yellow pigments, commonly employed from antiquity, were investigated by morphological, spectrophotometric and compositional analyses. Namely, scanning electron microscopy-energy dispersive X-ray (SEM/EDX) characterisations and reflectance, attenuated total reflection-Fourier transform infrared spectroscopy (ATR-FTIR) and Raman spectroscopy were carried out on egg yolk tempera models to discriminate the pigments. The models were irradiated with excimer KrF (248 nm) laser at different working conditions, and the effects induced on colour were related to chemical and physical modifications through the same analyses, as a function of laser parameters. It came out that the effects on the pictorial layers are always related to the modifications of the binding medium and, in addition, the laser radiation induces dehydration and transformation of iron oxides in natural earths. Copyright (C) 2009 John Wiley & Sons, Ltd.
Giornale/Rivista: JOURNAL OF RAMAN SPECTROSCOPY
Volume: 40 (11) Da Pagina: 1664 A: 1667
Parole chiavi: colour measurement; excimer laser-induced effects; micro-Raman spectroscopy; spectrophotometry; yellow pigmentsDOI: 10.1002/jrs.2316Citazioni: 5dati da “WEB OF SCIENCE” (of Thomson Reuters) aggiornati al: 2025-05-18Riferimenti tratti da Isi Web of Knowledge: (solo abbonati) Link per visualizzare la scheda su IsiWeb: Clicca quiLink per visualizzare la citazioni su IsiWeb: Clicca qui
