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7. Weathering of stained glass
7.1 Weathering layer
In both old and model glass (exposed to rain or sheltered), a layer of hydrated, dealkalized glass is observed beneath the surface of the glass. This subsurface layer of alteration (CA) can be seen with the naked eye by the appearance of iridescence on model glasses as early as 15 days after exposure to precipitation . Raman and FTIR analyses also show the formation of highly hydrated weathering layers (figure
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Weathering of stained glass
Weathering mechanisms
Bibliography
- (1) - GRODECKI (L.), PERROT (F.), TARALON (J.) et al - Les vitraux de Paris, de la région parisienne, de la Picardie et du Nord Pas-de-Calais : recensement des vitraux anciens de la France, Comité français du Corpus Vitrearum Medii Aevi et avec le concours de la Direction de l'architecture du ministère de la culture. - CNRS Paris, vol. I, p. 5-7,...
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Corpus Vitrearum International : http://www.corpusvitrearum.org/
International Council of Museums : http://www.icom-cc.org/
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