About this Abstract |
| Meeting |
MS&T25: Materials Science & Technology
|
| Symposium
|
Progressive Solutions to Improve the Corrosion Resistance of Nuclear Waste Storage Materials
|
| Presentation Title |
Elucidating the structure-property relation of iron phosphate glasses as a nuclear waste form |
| Author(s) |
Jincheng Du, Jayani Kalahe |
| On-Site Speaker (Planned) |
Jincheng Du |
| Abstract Scope |
Aluminum and iron phosphate glasses find applications in nuclear waste disposal due to their high chemical durability, solubility to various cations and anions, as well as their lower melting temperature than common silicate or borosilicate glasses. As a competing waste form, it becomes especially relevant in the next generation nuclear reactors where waste form development is critical for their success. In this talk, I will present our recent studies to understand the structures and structure-property relations of iron phosphate glasses by using molecular dynamics simulations and quantitative structure-property relationship (QSPR) analysis. The effect of iron redox ratio and composition on the structures and properties will be discussed and compared with experimental data. The application of reactive molecular dynamics simulations to understand the aqueous reactions and corrosion of these glasses will also be discussed. |