This paper presents the potential of Raman spectroscopy, a non-destructive technique which can be applied in-situ, for the analyses of glass and their alteration. Recent analytical developments are summarised for different glass composition and practical examples are given. The paper describes how to extract compositional information from the glass, first based on the spectra profile to distinguish rapidly alkali silicate from alkaline-earth alkali silicate and lead alkali silicate glass, then using the spectral decomposition and correlations to extract quantitative data. For alkali silicate glasses, that are most prone to alteration, the spectral characteristics are described to interpret the alteration process (selective leaching or dissolution of the glass) from the Raman spectra of the altered glass. These developments have greatly widened the potential of the technique and supplement well its ability to measure the thickness of the altered layer and identify the crystalline deposits.
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- Resource type
National Museums Scotland
- Book title
ICOM 15th triennial conference, New Delhi 22-26 September 2008
- Journal title
ICOM Committee for Conservation, 15th triennial meeting preprints
- Place of publication
- Official URL
- Related URL
- Rights holder
- Library of Congress Classification
- Additional information
This publication comprises of two volumes with a CD-ROM.