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Raman scattering features of lead pyroantimonate compounds: implication for the non-invasive identification of yellow pigments on ancient ceramics. Part II. In situ characterisation of Renaissance plates by portable micro-Raman and XRF studies
- 1.0370205 - ÚACH 2012 RIV GB eng J - Journal Article
Rosi, F. - Manuali, V. - Grygar, Tomáš - Bezdička, Petr - Brunetti, B.G. - Sgamellotti, A. - Burgio, L. - Seccaroni, C. - Miliani, C.
Raman scattering features of lead pyroantimonate compounds: implication for the non-invasive identification of yellow pigments on ancient ceramics. Part II. In situ characterisation of Renaissance plates by portable micro-Raman and XRF studies.
Journal of Raman Spectroscopy. Roč. 42, č. 3 (2011), s. 407-414. ISSN 0377-0486. E-ISSN 1097-4555
Institutional research plan: CEZ:AV0Z40320502
Keywords : Naples yellow * lead antimonate * cubic pyrochlore * non-invasive * in situ
Subject RIV: DD - Geochemistry
Impact factor: 3.087, year: 2011
The effectiveness of Raman spectroscopy (using a bench-top system on standard pigments) for the characterisation of modified lead antimonate yellows was demonstrated in the already published Part I. The knowledge gained is employed here for the study of yellow glazes on genuine Renaissance plates with the aim of identifying non-invasively lead pyroantimonate compounds by portable micro-Raman equipment. The investigation was carried out directly on site, at the Victoria and Albert Museum (London, UK) and at the Museo Statale d'Arte Medievale di Arezzo (Arezzo, Italy), combining Raman and X-ray fluorescence analyses. In addition to the spectral features of both unmodified Naples yellow and Sn- and Zn-modified lead antimonate compounds, the Raman patterns related to partially modified pyrochlore structures were observed. For this reason, the possible Sn-induced modification of Naples yellow by cassiterite (SnO(2)), present within the glaze as opacifier was explored on lead antimonate yellow glaze mock-ups fired at different temperatures.
Permanent Link: http://hdl.handle.net/11104/0204074
Number of the records: 1