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Title
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High-resolution desktop microcomputed tomography for the evaluation of reducing treatments on historical glass suffering from manganese browning
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Author
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Abstract
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| Historical glass, especially non-durable mediaeval glass, can undergo corrosion. This sometimes results in the formation of dark-coloured manganese-rich inclusions or stains that reduce the transparency of the glass. A conservation treatment with reducing or chelating agents may be considered with the aim of improving the transparency. In this paper, high-resolution desktop microcomputed tomography (µCT) is used in combination with element-specific twodimensional imaging methods for in situ monitoring of manganese removal by hydroxylamine hydrochloride from an archaeological stained-glass sample suffering from manganese browning and from artificially corroded model glass samples. µCT also proved itself useful for the study of the (re-)penetration of manganese into the gel layer during artificial corrosion of a model glass. |
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Language
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English
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Source (book)
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ICOM-CC Glass and Ceramics Working Group Interim Meeting and Forum of the International Scientific Committee for the Conservation of Stained Glass, ICOM Committee for Conservation (Corpus Vitrearum-ICOMOS) / Roemich, Hannelore [edit.]; et al.
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Source (series)
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Recent advances in glass, stained-glass, and ceramics conservation ; 2013
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Publication
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Zwolle
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Spa
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2013
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ISBN
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978-90-8932-113-8
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Volume/pages
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p. 201-209
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