Original title: Optical evaluation of corrosion products using colorimetric spectroscopy
Authors: Majtás, Dušan ; Fialová, P.
Document type: Papers
Conference/Event: METAL 2019. International conference on metallurgy and materials /28./, Brno (CZ), 20190522
Year: 2019
Language: eng
Abstract: Aim of this work is to test possibility to utilize colorimetric spectroscopy for monitoring the corrosion of lead and tin-lead alloys. And furthermore method suitability for preliminary corrosion evaluation of cultural heritage objects. According to literature colorimetry is used to monitor patinas of bronze objects, thus the method might be also suitable for lead based alloys. Samples used were made from commercially produced lead plate. These were exposed in the climatic chamber to different relative humidity (60, 80, 90 %). After the exposure the corrosion products with different color formed on sample surface. These corrosion products were evaluated by different methods: optical microscopy, colorimetric spectroscopy, and X-ray chemical analysis. Collected colorimetric data display difference between treatments suitable for patina evolution monitoring. The paper presents obtained results and comparison of applied methods.
Keywords: colorimetry; corrosion; cultural heritage; laboratory simulation; lead; optical method; spectroscopy
Project no.: DG18P02OVV050 (CEP)
Funding provider: GA MK
Host item entry: METAL 2019 - 28th International Conference on Metallurgy and Materials, Conference Proceedings, ISBN 978-80-87294-92-5

Institution: Institute of Theoretical and Applied Mechanics AS ČR (web)
Document availability information: Fulltext is available at the institute of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0307464

Permalink: http://www.nusl.cz/ntk/nusl-432154


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Research > Institutes ASCR > Institute of Theoretical and Applied Mechanics
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