Abstract
The micro-chemical and micro-structural nature of inorganic thick encrustations, deposited during long-term archaeological burial on Roman, Greek and medieval ceramic artefacts and obscuring significant decoration details, were investigated by means of scanning electron microscopy combined with energy-dispersive spectrometry, optical microscopy, X-ray photoelectron spectroscopy, X-ray diffraction and differential thermal analysis and thermogravimetry. Analytical results showed the presence of carbonates mixed with low amounts of silicate, chlorides, sulphates and phosphates containing Ca, Fe, Na, K, Al and Ti. Extensive preliminary comparative trials and different chemical cleaning methods and materials were used to remove the thick carbonatic encrustations without altering the underlying coloured decoration layers. The micro-chemical and micro-morphological characterisation of the cleaned ceramic surfaces showed that a styrene-divinylbenzene copolymer cationic resin with fine particle size represents a reliable and effective cleaning material when applied under controlled conditions (temperature = 30 °C, relative humidity = 100%, application time = 24 h) by using a simple, low-cost and safe procedure.
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References
B. Fabbri, C. Ravanelli Guidotti, Il restauro della ceramica (Nardini, Fiesole (FI), Italy, 1993), p. 137
J. Olive, C. Pearson, in Conservation in Archaeology and the Applied Arts (IIC, London, 1975), p. 63
C. Pearson, in Conservation of Marine Archaeological Objects (Butterworth, London, 1987), p. 99
P. Gaspar, C. Hubbard, D. McPhail, A. Cummings, J. Cult. Herit. 4, 294s (2003)
J. Costa Pessoa, J.L. Farinha Antunes, M.O. Figueiredo, M.A. Fortes, Stud. Conserv. 41, 153 (1996)
J. Unruh, Stud. Conserv. 46, 81 (2001)
M. Cooper, Laser Cleaning in Conservation: An Introduction (Butterworth Heinemann, Oxford, UK, 1998), p. 112
R. Salimbeni, R. Pini, S. Siano, Spectrochim. Acta B 56, 877 (2001)
P. Pouli, V. Zafiropoulos, C. Balas, Y. Doganis, A. Galanos, J. Cult. Herit. 4, 338 (2003)
P. Maravelaki-Kalaitzaki, V. Zafiropoulos, C. Fotakis, Appl. Surf. Sci. 148, 92 (1999)
R. Wolbers, in Cleaning Painted Surfaces: Aqueous Methods (Archetype, London, UK, 2000), p. 73
P. Cremonesi, L’uso di tensioattivi e chelanti nella pulitura di opere policrome (I Talenti 10) (Il Prato, Saonara (Padova), 2001)
E. Ciliberto, S. La Delfa, S. Panarello, in Tecniche di analisi di materiali nei beni culturali (Carbone, Palermo, Italy, 2007), p. 142 [ISBN 88-88803-29-7]
G. Lanterna, M. Matteini, J. Cult. Herit. 1, S29 (2000)
V. Verges-Belmin, Comparison of three cleaning methods – microsandblasting, chemical pads and Q-switched YAG laser – on a portal of the cathedral Notre Dame in Paris, France, in LACONA I – Lasers in the Conservation of Artworks (Mayer, Vienna, 1997)
S. Gänsicke, P. Hatchfield, A. Hykin, M. Svoboda, C. Mei-An Tsu, J. Am. Inst. Conserv. 42, 167 (2003)
G.M. Ingo, G. Bultrini, T. de Caro, C. Del Vais, Surf. Interface Anal. 30, 101 (2000)
G.M. Ingo, G. Bultrini, T. de Caro, E. Angelini, L. Pandolfi, A. Mezzi, Surf. Interface Anal. 34, 328 (2002)
M.P. Casaletto, G. Chiozzini, G.M. Ingo, T. de Caro, Surf. Interface Anal. 38, 364 (2006)
L. Borgioli, P. Cremonesi, Le resine sintetiche usate nel trattamento di opere policrome (I Talenti 17) (Il Prato, Saonara (Padova), 2005)
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PACS
81.05.Je; 81.70.Jb; 68.55.Jk; 68.37.Hk
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Casaletto, M., Ingo, G., Riccucci, C. et al. Chemical cleaning of encrustations on archaeological ceramic artefacts found in different Italian sites. Appl. Phys. A 92, 35–42 (2008). https://doi.org/10.1007/s00339-008-4519-x
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DOI: https://doi.org/10.1007/s00339-008-4519-x