A methodology for Raman structural quantification imaging and its application to iron indoor atmospheric corrosion products

Raman structural imaging has been advanced to quantitatively analyze corrosion products on ancient iron artifacts, offering new insights into the composition and structure of indoor atmospheric corrosion layers. This study introduces a novel methodology using home-developed software, LADIR-CAT, which extracts quantitative parameters from Raman hyperspectral maps. Applied to corroded iron samples from Amiens Cathedral, France, this approach enables detailed mapping of corrosion compounds, providing a deeper understanding of the degradation processes affecting historical metal structures. The findings contribute significantly to the preservation and study of cultural heritage materials, particularly those at risk from atmospheric corrosion.

Monnier, J., Bellot‐Gurlet, L., Baron, D., Neff, D., Guillot, I., & Dillmann, P. (2010). A methodology for Raman structural quantification imaging and its application to iron indoor atmospheric corrosion products. Journal of Raman Spectroscopy, 42(4), 773–781. Portico. https://doi.org/10.1002/jrs.2765