Archaeology of colour: A comparative & interdisciplinary material culture study on Portuguese Medieval & Modern polychrome sculpture aims to unravel the origins, evolvement and significance of polychromy, plus their cultural webs within & beyond Europe.

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Assessing the decorative techniques of two Art Nouveau glass windows by optical coherence tomography (OCT)

Publication . Palomar, Teresa; Iwanicka, Magdalena; Pombo Cardoso, Isabel; Vilarigues, Márcia; Targowski, Piotr; VICARTE - Vidro e Cerâmica para as Artes; LAQV@REQUIMTE; DCR - Departamento de Conservação e Restauro; SpringerOpen

This work presents an assessment of the different decoration techniques applied in the two glass windows from the Casa-Museu Dr. Anastácio Gonçalves (Lisbon, Portugal) by Optical coherence tomography (OCT). The Dining Room glass window was found to be decorated with grisailles and acid etching, and the Atelier window with grisaille, enamel, and cold painting. The alteration state of the surface decorations was also assessed. The thicker surface decorations (grisailles and enamels) presented cracks and detachments, in contrast to the thinner lines which are normally well preserved. OCT is a suitable technique for characterizing glass decoration in situ without dismounting the stained-glass window; and able to reveal the condition and methods of manufacture that cannot be detected simply by visual inspection.

2023-12Artigo científico

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Fundação para a Ciência e a Tecnologia

Programa de financiamento

CEEC IND4ed

Número da atribuição

2021.01436.CEECIND/CP1657/CT0037