The effects of surface area to solution volume ratio and surface roughness on glass leaching

C. Q. Buckwalter, L. R. Pederson, G. L. McVay

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

The effects of surface roughness on the leaching characteristics of both a simple borosilicate and a soda-lime-silicate glass were evaluated by using five different surface preparations with a constant sample surface area to leachate volume ratio (SA/V). For the borosilicate glass, corrosion rates were accelerated as a result of surface roughness by much more than the percentage increase in surface area, but they were approximately equal to the surface area increases for the soda-lime-silicate glass. Opposite trends in the amount of selective leaching with changes in surface roughness occurred with the two glasses, in which surface layer accumulation of insoluble components played a key role. The effects of varying SA/V on leaching characteristics were evaluated for a simple borosilicate glass by using five different SA/V values for one surface preparation. Except for Si, increasing SA/V ratios resulted in both an increase in the leachate pH and a decrease in the total elemental removal. The net effect was a thinner depletion layer with larger SA/V ratios. These results are compared to those for simple silicate glasses found in the literature.

Original languageEnglish
Pages (from-to)397-412
Number of pages16
JournalJournal of Non-Crystalline Solids
Volume49
Issue number1-3
DOIs
Publication statusPublished - 1982
Externally publishedYes

Fingerprint

leaching
Leaching
surface roughness
roughness
Surface roughness
Silicates
Glass
glass
silicates
borosilicate glass
calcium oxides
Borosilicate glass
Lime
preparation
Corrosion rate
surface layers
corrosion
depletion
trends

ASJC Scopus subject areas

  • Ceramics and Composites
  • Electronic, Optical and Magnetic Materials

Cite this

The effects of surface area to solution volume ratio and surface roughness on glass leaching. / Buckwalter, C. Q.; Pederson, L. R.; McVay, G. L.

In: Journal of Non-Crystalline Solids, Vol. 49, No. 1-3, 1982, p. 397-412.

Research output: Contribution to journalArticle

Buckwalter, C. Q. ; Pederson, L. R. ; McVay, G. L. / The effects of surface area to solution volume ratio and surface roughness on glass leaching. In: Journal of Non-Crystalline Solids. 1982 ; Vol. 49, No. 1-3. pp. 397-412.
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