Abstract
The leaching and dissolution behavior of two sodium-aluminosilicate glasses, with structures containing one versus five non-bridging oxygen sites per 10 tetrahedra, is discussed for both acid (pH 2) and base (pH 9) reactions. The soda concentration was held constant at 25 mol%. X-ray photoelectron spectroscopy, secondary ion mass spectroscopy and Fourier transform infrared reflection spectroscopy have been used to determine the composition and structure of the reacted glass surfaces. The glass with five NBO sites per 10 tetrahedra exhibits extensive surface layer formation in both acid and base. Conversely, the glass with one NBO site per 10 tetrahedra exhibits total dissolution in acid; in base, this glass is essentially unreactive.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 167-174 |
| Number of pages | 8 |
| Journal | Journal of Non-Crystalline Solids |
| Volume | 222 |
| DOIs | |
| State | Published - Dec 2 1997 |
| Event | Proceedings of the 1997 14th University Conference on Glass Science - Bethlehem, PA, USA Duration: Jun 17 1997 → Jun 20 1997 |
All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Ceramics and Composites
- Condensed Matter Physics
- Materials Chemistry