Développement d’une méthode de nettoyage électrolytique localisé pour la restauration de chefs d’oeuvres d’orfèvrerie du trésor de l’Abbaye de Saint-Maurice (VS)
USEFUL LINKS
The PLECO has been designed as an open source tool that should benefit from any improvement provided by end-users link to the projet PLECO.
Links to the Saint-Maurice’s final report and to the appendix of the report
PROGRAM
The tarnish removal was carried out at constant potential and the reduction current was monitored versus time (chronoamperometric plots).
The PLECO was moved by hand (dynamic mode) from one plate to another in order to clean first silver chloride tarnish and eventually silver sulphide tarnish.
By doing so, we could prevent any risk of overcleaning (hydrogen embrittlement) on these medieval silver plates that are often heavily cracked.
RESULTS
The PLECO has successfully been used on some masterpieces of the Treasury of Saint-Maurice Abbey. In static mode, voltammetric curves were systematically plotted on all plates of the same artefact to map precisely the nature and the level of tarnishing.
FUNDING
- HES-SO, Réseau de Compétences Design et arts Visuels hes-so.ch
PARTNERS
- Saint-Maurice Abbey of Agaune, (VS) abbaye-stmaurice.ch
- Institute EDANA
- HE-Arc Ingénierie he-arc.ch
- FabLab, Neuchâtel fablab-neuchatel.ch
- Institute of Art History, University of Neuchâtel unine.ch
- C2RMF, Paris c2rmf.fr
- Arc’Antique, Nantes laboratoire-arc-antique.fr
