About this Abstract |
Meeting |
MS&T22: Materials Science & Technology
|
Symposium
|
2022 Undergraduate Student Poster Contest
|
Presentation Title |
Effect of Transition Metals in Borosilicate Glass Corrosion with Stirred Reactor Coupon Method |
Author(s) |
Raine W. Antonio, Sam Karcher, John Bussey, Brooke Downing, John McCloy |
On-Site Speaker (Planned) |
Raine W. Antonio |
Abstract Scope |
The most common method of testing corrosion rates of dilute solutions is the single-pass flow-through (SPFT) method where a small sample is corroded with a dilute flowing solution. The stirred reactor coupon analysis (SRCA) is a new technique that uses a single large stirred batch (8.8L) of solution with up to eight samples. Corrosion with SPFT is measured by change in powder mass while the SRCA method measures step height change of monolithic samples. This study computes corrosion rates with the in development SRCA method on a wide range of potential glasses for nuclear waste immobilization. Further, different additives in the borosilicate glasses are analyzed for effect on corrosion rate. In particular, the effect of transition metals on the formation of unexpected alteration layers was investigated. These studies provide further advancement in the development of the SRCA method and potentially inform compositional models for nuclear waste glass processing. |