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- Title
Structure and properties of Mo-Fe-phosphate glasses.
- Authors
Jincheng Bai; Jenhsien Hsu; Brow, Richard K.; Cheol-Woon Kim; Szabo, Joe; Zervos, Adam
- Abstract
The incorporation of MoO3 affects the structure and properties of iron phosphate glasses. Three series of Mo-Fe-phosphate glasses were prepared with MoO3 replacing Fe2O3 while retaining nominal O/P ratios of 3·1, 3·25 and 3·4. Raman spectroscopy and high pressure liquid chromatography provide information about the molybdate and phosphate anions that constitute glass structures. Decreases in molar volume and increases in glass transition temperature with increasing Mo/(Mo+Fe) ratio are attributed to an increased structural crosslink density through the formation of Mo-O-P bonds between MoO6 octahedra and phosphate anions. The Mo-O-P bonds appear to be more readily hydrolysed in water than Fe-O-P bonds, since the glass dissolution rate increases with increasing Mo/(Mo+Fe) ratio.
- Subjects
PHOSPHATE glass; HIGH performance liquid chromatography; MOLYBDATES; GLASS transition temperature; MOLECULAR volume; GLASS structure
- Publication
Physics & Chemistry of Glasses: European Journal of Glass Science & Technology Part B, 2019, Vol 60, Issue 2, p62
- ISSN
1753-3562
- Publication type
Article
- DOI
10.13036/17533562.60.2.039