Interactions of Silicate Glasses with Aqueous Environments Under Conditions of Prolonged Contact and Flow

Autor: John A. O'Keefe, Al. Barkatt, E. E. Saad, William Sousanpour, Sidney Alterescu, Aaron Barkatt, X. Feng, R. Adiga
Rok vydání: 1988
Předmět:
Zdroj: MRS Proceedings. 125
ISSN: 1946-4274
0272-9172
DOI: 10.1557/proc-125-129
Popis: Studies of the corrosion process of silicate and boro-silicate glasses under a broad range of contact times, surface-to-volume ratios and leachant compositions indicate that dissolution of such glasses in aqueous media can be interpreted in terms of activity of dissolving amorphous silica. This activity is modified by the presence of elements such as Al, Mg and Fe. The effects of these elements, when initially present in the glass or in the leachant, and, in general, the effects of glass composition on the course of the corrosion process can be viewed in terms of the formation of a surface layer on the leached glass. The type, composition and structure of this layer, which are determined by glass composition, control the dissolution behavior of the glass.
Databáze: OpenAIRE
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