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New insight into atmospheric alteration of alkali-lime silicate glasses

Fanny Alloteau 1 Patrice Lehuédé 1 Odile Majérus 1 Isabelle Biron 1 Anaïs Dervanian 1 Thibault Charpentier 2 Daniel Caurant 1
1 IRCP - Institut de Recherche de Chimie Paris
2 LSDRM - Laboratoire Structure et Dynamique par Résonance Magnétique (LCF)
NIMBE UMR 3685 - Nanosciences et Innovation pour les Matériaux, la Biomédecine et l'Energie (ex SIS2M)
Abstract : A mixed alkali lime silicate glass altered in atmospheric conditions (80 °C/85%RH, Relative Humidity) for various lengths of time was characterized at all scales. The altered glass forms a hydrated solid phase bearing about 10 wt% of H 2 O in the form of Si-OH groups and molecular water. No alkali depletion was observed after ageing tests. Structural results from 1 H, 23 Na and 29 Si MAS NMR point out the close proximity of Si-OH, H 2 O and Na + species. This study gives new insight into the mechanisms of the atmospheric alteration, essential to conservation strategies in industry and cultural heritage.
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https://hal-cea.archives-ouvertes.fr/cea-01510271
Contributor : Serge Palacin <>
Submitted on : Wednesday, April 19, 2017 - 12:19:54 PM
Last modification on : Tuesday, September 22, 2020 - 3:38:31 AM

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Fanny Alloteau, Patrice Lehuédé, Odile Majérus, Isabelle Biron, Anaïs Dervanian, et al.. New insight into atmospheric alteration of alkali-lime silicate glasses. Corrosion Science, Elsevier, 2017, 122, pp.12-25. ⟨10.1016/j.corsci.2017.03.025⟩. ⟨cea-01510271⟩

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