Citation:

Rodrigues, A., Fearn S., & Vilarigues M. (2018).  Historic K-rich silicate glass surface alteration: Behaviour of high-silica content matrices. Corrosion Science. 145, 249 - 261. copy at https://sites.fct.unl.pt/glassalteration/publications/historic-k-rich-silicate-glass-surface-alteration-behaviour-high-silica

Abstract:

Several K-Ca-Si glass compositions typical of Central-European glassworks are susceptible to damage beyond recall, even in mild museum conservative conditions. In order to provide a comprehensive picture of the deterioration process, replica samples were produced and exposed to four different museum-like environments. The corrosion experiment was followed by the use of ToF-SIMS, μ-Raman and μ-FTIR, performing a systematic compositional and structural study for the early stages (one year) of surface alteration. This work demonstrates the dominant role of Pb2+ and Ca2+ content for the inferable existence of connected conduction pathways, with strong implications on the surface's hydration, alkali-diffusion and hydrolysis.

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