Quantitative characterization of archaeological bronzes based on thermal and compositional analysis |
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Authors: | Fulvio Mercuri Ugo Zammit Noemi Orazi Giovanni Caruso Stefano Paoloni |
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Institution: | 1. Dipartimento di Ingegneria Industriale, Università di Roma Tor Vergata, Rome, Italy;2. CNR-ISPC, Montelibretti, Rome, Italy |
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Abstract: | Pulsed thermography has been applied to the quantitative characterization of the insertions of two ancient bronzes, the Boxer at Rest and the Hellenistic Prince. The analysis of the thermographic signal time dependence performed by a specifically developed model enabled the evaluation of the insertions’ thickness and of elements which could provide indications about the procedure followed for their insertion. This could be achieved by exploiting a semi-empirical relation establishing the thermal diffusivity dependence on the total effective weighted concentration of Sn and Pb atoms obtained from the analysis of the values determined on samples containing different concentrations of Sn and Pb. |
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Keywords: | archaeological bronzes bronze thickness cold-workings copper alloy insertions pulsed thermography thermal diffusivity |
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