Characterization of the alteration processes of historical glasses on the seabed

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Abstract

Glass objects are common in shipwrecks since they are associated with ordinary glassware or commercial products. The alteration pathologies of historical glasses from two wrecks from the Mediterranean Sea were analyzed to characterize their alteration mechanisms. The results of this research proved that the alteration layers presented a moderate content of Na2O, similar to the average salinity of the ocean, and a high content of Al2O3 due to an extremely basic environment during the corrosion process. The biofouling layer protected the glass surfaces. Dark deposits with a high content of MnO were observed in the most instable glass.

Original languageEnglish
Pages (from-to)391-401
Number of pages11
JournalMaterials Chemistry And Physics
Volume214
DOIs
Publication statusPublished - 1 Aug 2018

Keywords

  • Biofouling
  • Degradation
  • Historical glass
  • Seabed
  • Shipwreck

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