Abstract
Five series of Na 2 O-FeO-Fe 2 O 3 -P 2 O 5 glasses with compositional ranges of 3.0 < O/P < 3.5 and 0 < Fe/P < 0.67 were prepared. Glass structure was studied using Raman spectroscopy and Mössbauer spectroscopy. For glasses with similar O/P ratios, an increase in the Fe/P ratio produced broader distributions of phosphate anions, as indicated in the Raman spectra, and the average coordination number (CN Fe ) of the Fe ions decreased, as indicated by the Mössbauer data. The interaction between phosphate anions and iron polyhedra causes systematic changes in the Raman frequencies as well as peak intensities.
| Original language | American English |
|---|---|
| Pages (from-to) | 64-73 |
| Number of pages | 10 |
| Journal | Journal of Non-Crystalline Solids |
| Volume | 402 |
| DOIs | |
| State | Published - Oct 1 2014 |
Keywords
- Iron oxides
- Raman spectroscopy
- Sodium
- Average coordination number
- Compositional range
- Disproportionation reactions
- Mossbauer
- Raman
- Ssbauer spectroscopies
- Structural studies
- Systematic changes
- Glass
- Disproportionation reaction
- Iron-phosphate glass
Disciplines
- Chemistry
- Materials Science and Engineering
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