Relative abundance of subsurface hydroxyl and molecular water species in silicate and aluminosilicate glasses
| Autor: | John C. Mauro, Seong H. Kim, Shin-ichi Amma, Dien Ngo, Lei Chen, Jiawei Luo, Carlo G. Pantano |
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| Rok vydání: | 2019 |
| Předmět: |
010302 applied physics
Materials science Infrared spectroscopy 02 engineering and technology 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Silicate Electronic Optical and Magnetic Materials Secondary ion mass spectrometry chemistry.chemical_compound Silanol chemistry Chemical engineering Aluminosilicate Attenuated total reflection 0103 physical sciences Materials Chemistry Ceramics and Composites 0210 nano-technology Spectroscopy Sodium aluminosilicate |
| Zdroj: | Journal of Non-Crystalline Solids. 510:179-185 |
| ISSN: | 0022-3093 |
| Popis: | The interaction of water with glass has a profound impact on its mechanical, chemical, and kinetic properties. Water can enter the glass network either as molecular form (H2O) or hydroxyl species (OH). The resulting impact of water on glass properties depends on the relative concentrations of hydroxyl to molecular species. While attenuated total reflection infrared (ATR-IR) spectroscopy can be used to determine the presence of these species in the subsurface region of glass, there is currently no approach to characterize their relative abundance in the glass surface. In this paper, we propose a calculating method for quantifying the ratio of hydroxyl to molecular water in silicate glasses based on a combination of ATR-IR spectroscopy and secondary ion mass spectrometry (SIMS). The technique is applied to leached soda lime silicate and sodium aluminosilicate glasses under a variety of process conditions. The method presented in this paper offers a new avenue for understanding the multiple roles of water in silicate glass network structure and topology. |
| Databáze: | OpenAIRE |
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