| About this Abstract |
| Meeting |
2021 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advanced Real Time Imaging
|
| Presentation Title |
Determination of Uranium Oxidation Kinetics Through White-Light Interferometry |
| Author(s) |
Yaakov Idell, Wigbert Siekhaus, Kerri Blobaum, William McLean |
| On-Site Speaker (Planned) |
Yaakov Idell |
| Abstract Scope |
Material degradation of uranium resulting from the uranium-oxygen reaction has long been of great interest to the nuclear industry in hopes of solving long-term storage and disposal related concerns. The mechanisms and kinetics of the early-stage oxide film growth (< 1 µm thick), are not well understood and high-resolution spatial data is essential to understanding changes in the oxide film. We have automated a white-light interferometer, a non-destructive and non-contact optical surface profiling instrument, to rapidly collect in-situ time-dependent three-dimensional measurements of the growing oxide film with nm-scale vertical and µm-scale lateral resolution. We will be presenting the in-situ white-light interferometry results that have been collected in dry air and pure O2 gas environments and at various temperatures, which will be complemented with spectroscopic ellipsometry and X-ray diffraction data. This work was performed under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344 |
| Proceedings Inclusion? |
Planned: |