The Formation of Pitted Features on the International Simple Glass during Dynamic Experiments at Alkaline pH

Adam J. Fisher, Neil C. Hyatt, Russell J. Hand, Claire L. Corkhill

Research output: Contribution to journalArticle (Academic Journal)peer-review

6 Citations (Scopus)

Abstract

The forward rate of dissolution of the International Simple Glass (ISG) was determined under alkaline conditions at 40 ° C using the Single Pass Flow Through (SPFT) method. Forward rates were consistent with those obtained in the literature for this glass composition. The formation of altered gel layers and surface pits was observed on the surface of glass particles, especially at the very highest pH values, despite the application of high flow rates to prevent the build-up of solubility limiting phases. These features could be attributed to preferential localized dissolution at sites with a higher alkali concentration or from a separate, less durable, vitreous phase. These results may indicate that surface pit and altered gel formation occurs under the forward rate of dissolution as imposed by the SPFT method, particularly for simplified borosilicate glass materials.

Original languageEnglish
Pages (from-to)993-999
Number of pages7
JournalMRS Advances
Volume4
Issue number17-18
DOIs
Publication statusPublished - 2019

Bibliographical note

Publisher Copyright:
Copyright © 2019 Materials Research Society.

Keywords

  • corrosion
  • glass
  • nuclear materials

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