About this Abstract |
Meeting |
2021 TMS Annual Meeting & Exhibition
|
Symposium
|
Accelerated Discovery and Qualification of Nuclear Materials for Energy Applications
|
Presentation Title |
In-situ TEM Heating Chip Experiments to Study Thermal Behavior of U-Zr Metallic Fuel |
Author(s) |
Tiankai Yao, Fei Teng, Daniel J. Murray, JIan Gan, Michael T Benson, Lingfeng He |
On-Site Speaker (Planned) |
Tiankai Yao |
Abstract Scope |
U-Zr based metallic fuel is being investigated as a candidate for the sodium-cooled fast reactor. Transmission electron microscopy (TEM) based characterization is being increasingly used to reveal microstructural features at the nanometer scale and to provide novel insights to correlate these microstructural features with bulk properties for the U-Zr system. The value of the TEM method is being increased by using an in-situ TEM heating chip to observe the microstructural evolution in U-Zr alloys during the heat treatment. This is in contrast to analyzing a static sample after a furnace anneal that shows the results of the anneal, but not the process. A series of U-Zr alloys have been investigated using the in-situ heating chip, including U-10Zr, U-20Zr, U-50Zr, and U-80Zr. Unprecedented phenomena have been observed in these alloys and will be discussed along with implications for the U-Zr based metallic fuel system. |
Proceedings Inclusion? |
Planned: |
Keywords |
Nuclear Materials, Characterization, |