About this Abstract |
| Meeting |
MS&T26: Materials Science & Technology
|
| Symposium
|
Ceramics and Glasses for Nuclear Energy Applications
|
| Presentation Title |
Impact of Vanadium on Structure and Properties of Sodium Aluminoborosilicate Glasses |
| Author(s) |
Preeti Malviya, Randall Youngman, Dominique Ligny, Anuraag Gaddam, Aleksey Yaremchenko, Ashutosh Goel |
| On-Site Speaker (Planned) |
Preeti Malviya |
| Abstract Scope |
Vanadium, as a transition element, exhibits varying oxidation states, intricately influenced by the bulk chemistry of glass; significantly alters the physical and chemical properties. For instance, vanadium is known to increase sulfur solubility in borosilicate glasses. Although numerous hypotheses exist within the literature, there remains a notable gap in understanding the precise processes involved. This ambiguity prompts further investigation, as elucidating the underlying mechanisms could reveal opportunities to tailor practical applications across various areas of interest.
The present study aims at elucidating the structure of 0 to 5 mol.% vanadium-containing sodium aluminoborosilicate glasses (peralkaline, metaluminous, and peraluminous). Redox behavior of V as a function of Na/Al ratio and V2O5 concentration has been unearthed using Raman and EPR spectroscopy while the consequential impact on the glass structure has been followed using electrical conductivity, combined with 11B, 23Na, 27Al, and 51V MAS NMR spectroscopy. Results will be discussed in the presentation. |