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

Authors

  • Judith Monnier,

    1. Université Paris-Est, Institut de Chimie et des Matériaux Paris-Est (ICMPE) UMR 7182, CNRS and UPEC—Université Paris-Est Créteil, 94320 Thiais, France
    2. Laboratoire Archéomatériaux et Prévision de l'Altération (LAPA), SIS2M UMR 3299, CEA and CNRS, and IRAMAT UMR5060 CNRS, CEA Saclay, 91191 Gif sur Yvette cedex, France
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  • Ludovic Bellot-Gurlet,

    Corresponding author
    1. Laboratoire de Dynamique, Interactions et Réactivité (LADIR) UMR 7075, CNRS and UPMC—Université Pierre et Marie-Curie Paris 6, 94320 Thiais, France
    • Laboratoire de Dynamique, Interactions et Réactivité (LADIR) UMR 7075, CNRS and UPMC—Université Pierre et Marie-Curie Paris 6, 2 rue Henri Dunant, 94320 Thiais, France.
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  • Denis Baron,

    1. Laboratoire de Dynamique, Interactions et Réactivité (LADIR) UMR 7075, CNRS and UPMC—Université Pierre et Marie-Curie Paris 6, 94320 Thiais, France
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  • Delphine Neff,

    1. Laboratoire Archéomatériaux et Prévision de l'Altération (LAPA), SIS2M UMR 3299, CEA and CNRS, and IRAMAT UMR5060 CNRS, CEA Saclay, 91191 Gif sur Yvette cedex, France
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  • Ivan Guillot,

    1. Université Paris-Est, Institut de Chimie et des Matériaux Paris-Est (ICMPE) UMR 7182, CNRS and UPEC—Université Paris-Est Créteil, 94320 Thiais, France
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  • Philippe Dillmann

    1. Laboratoire Archéomatériaux et Prévision de l'Altération (LAPA), SIS2M UMR 3299, CEA and CNRS, and IRAMAT UMR5060 CNRS, CEA Saclay, 91191 Gif sur Yvette cedex, France
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Abstract

Raman structural imaging can extract original information in order to answer new questions raised in the recent studies on iron and low alloy steel corrosion. Up to now, this technique has allowed the extraction of the qualitative distribution of the compounds constituting the corrosion product layers. We propose here a methodology to extract quantitative parameters from Raman hyperspectral maps, executed by a home-developed software: LADIR-CAT. Specifically developed for iron corrosion quantitative component imaging, the approach and program operation are described. The LADIR-CAT is applied on ancient corroded iron samples originating from the Amiens cathedral (France) to establish the description and the composition of the corrosion system through quantitative compound imaging. Copyright © 2010 John Wiley & Sons, Ltd.

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