Structure of cesium–borosilicate glasses according to NMR spectroscopy
| Autor: | P. M. Tolstoi, A. A. Osipov, V. E. Eremyashev, L. M. Osipova, Anton S. Mazur |
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| Rok vydání: | 2017 |
| Předmět: |
010302 applied physics
Mas nmr spectroscopy Materials science Borosilicate glass Analytical chemistry chemistry.chemical_element 02 engineering and technology Nuclear magnetic resonance spectroscopy 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Local structure Silicate chemistry.chemical_compound chemistry Caesium 0103 physical sciences Materials Chemistry Ceramics and Composites 0210 nano-technology |
| Zdroj: | Glass Physics and Chemistry. 43:287-293 |
| ISSN: | 1608-313X 1087-6596 |
| Popis: | The local structure of cesium-borosilicate glasses with various Cs2O and B2O3 proportions and constant SiO2 content (50 mol %) is studied with 11B, 29Si, and 133Cs MAS NMR spectroscopy. The portions of three- and four-fold Si atoms are determined, as well as the concentrations of various silicate Q n units. Our experimental data are compared with the predictions of Dell’s model and thermodynamic modeling for sodium–borosilicate analogs of the glasses studied. |
| Databáze: | OpenAIRE |
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