Aqueous corrosion of natural and nuclear waste glasses I. Comparative rates of hydration in liquid and vapor environments at elevated temperatures

Teofilo Abrajano*, J. K. Bates, C. D. Byers

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    19 Scopus citations

    Abstract

    This paper presents the results of aqueous corrosion experiments performed on natural and nuclear waste glasses in liquid and vapor environments. It is shown for all glass compositions considered that the rate of hydration in hydrothermal experiments is higher than the rate of vapor hydration at the same temperature. It is also demonstrated, in the case of the nuclear waste glass SRL 131, that the rate of hydration is a strong function of pH2O and that a critical pH2O exists below which hydration rates are negligible. Both phenomena may be explained by the higher surface pH and mobile cation concentrations that develop during glass/vapor interaction relative to glass liquid interaction. High surface pH inhibits ion exchange but enhances network hydrolysis.

    Original languageEnglish (US)
    Pages (from-to)251-257
    Number of pages7
    JournalJournal of Non-Crystalline Solids
    Volume84
    Issue number1-3
    DOIs
    StatePublished - Jul 2 1986

    ASJC Scopus subject areas

    • Electronic, Optical and Magnetic Materials
    • Ceramics and Composites
    • Condensed Matter Physics
    • Materials Chemistry

    Fingerprint Dive into the research topics of 'Aqueous corrosion of natural and nuclear waste glasses I. Comparative rates of hydration in liquid and vapor environments at elevated temperatures'. Together they form a unique fingerprint.

    Cite this