Raman Studies of Corrosion Layers Formed on Archaeological Irons in Various Media
|Periodical||Journal of Nano Research (Volume 8)|
|Main Theme||Journal of Nano Research Vol. 8|
|Citation||Ludovic Bellot-Gurlet et al., 2009, Journal of Nano Research, 8, 147|
|Online since||September, 2009|
|Authors||Ludovic Bellot-Gurlet, Delphine Neff, Solenn Réguer, Judith Monnier, Mandana Saheb, Philippe Dillmann|
|Keywords||Ancient Artefact, Imaging, Iron Corrosion, Raman Spectroscopy|
The description and identification of corrosion products formed on archaeological iron artefacts need various approaches at different observation scales. Among analytical techniques available to document phase structure at the microscopic range, Raman spectroscopy offers sensitivity and discrimination between iron corrosion products with an easy implementation. Results obtained for iron artefacts corrosion in soils and atmosphere are presented. Corrosion forms observed for anoxic and aerated soils on one hand and indoor atmosphere on the other are documented. Beyond the identification and organisation of corrosion products through hyperspectral imaging, Raman micro-spectroscopy could also provide quantitative phase proportions which will be needed in the proposition of reactivity diagnosis indicators.