New insight into atmospheric alteration of alkali-lime silicate glasses

Fanny Alloteau; Patrice Lehuédé; Odile Majérus; Isabelle Biron; Anaïs Dervanian; Thibault Charpentier; Daniel Caurant

doi:10.1016/j.corsci.2017.03.025

Journal articles

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.

Document type :

Journal articles

Domain :

Chemical Sciences / Material chemistry

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https://hal-cea.archives-ouvertes.fr/cea-01510271
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Submitted on : Wednesday, April 19, 2017 - 12:19:54 PM
Last modification on : Tuesday, September 22, 2020 - 3:38:31 AM

New insight into atmospheric alteration of alkali-lime silicate glasses

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New insight into atmospheric alteration of alkali-lime silicate glasses

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