Structure and Properties of Mo-Fe-Phosphate Glasses
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.
J. Bai et al., "Structure and Properties of Mo-Fe-Phosphate Glasses," Physics and Chemistry of Glasses: European Journal of Glass Science and Technology Part B, vol. 60, no. 2, pp. 62-69, Society of Glass Technology, Apr 2019.
The definitive version is available at https://doi.org/10.13036/17533562.60.2.039
Materials Science and Engineering
Mining and Nuclear Engineering
Keywords and Phrases
Glass Transition; Hematite; High Pressure Liquid Chromatography; Molar Ratio; Molybdenum Oxide; Negative Ions, Cross-Link Densities; Glass Dissolution; Glass Structure; Iron Phosphate Glass; Phosphate Anions; Phosphate Glass; Structure and Properties, Glass
International Standard Serial Number (ISSN)
Article - Journal
© 2019 Society of Glass Technology, All rights reserved.
01 Apr 2019