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Journal article (2015)

Authors

J.M. Cerezo Palacios OLD Metals Processing, Microstructures and Properties
Cristian Mocuta DiffAbs Beamline Synchrotron SOLEIL, L'Orme des Merisiers Saint-Aubin
Research Group
(OLD) MSE-1
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Published Date

2015

Language

English

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Research Group

(OLD) MSE-1

Abstract

In previous papers, we showed that it is possible to modify the colour of gilding on the silver substrate by applying a surface chemical treatment after it has been burnished [Crabbé et al., Surf. Interface Anal. 2008, 40, 467; Crabbé et al. Applied Physics A, 2013, 111, 39]. These types of techniques are recounted in many medieval and older manuscripts [Crabbé et al., Arch. des Biblio. de Belgique. 2011, 94, 1581]. They have to be taken into account when applying conservation-restoration cleaning to silver gilded statuettes such as the ones from the Holy Lady Shrine from Huy (13th century, Belgium) [Didier et al., Bull. de L'IRPA 1970, 12, 5]. Scanning Electron Microscopy coupled with Energy Dispersive X-ray spectroscopy (SEM-EDX) and synchrotron X-ray Absorption Spectroscopy (XAS) were carried out both on model and historical samples with the aim of determining if medieval colour treatment has been applied in an efficient way to the silver gilded statuettes of the shrine. Those results are of first importance to the conservator-restorer responsible for the shrine restoration treatment. They will influence the treatment applied to the shrine but also the interpretation of the art-piece, its final aspect and the art-history of medieval times.