| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
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Mechanical Response of Materials Investigated through Novel In-situ Experiments and Modeling
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| Presentation Title |
L-51: Development and Applications of a Fiber-based Instrument for In-situ Thermal Property Measurements |
| Author(s) |
Zilong Hua, Robert Schley, Colby Jensen, Austin Fleming, Jorgen Rufner, Michael Short, David Carpenter, David Hurley |
| On-Site Speaker (Planned) |
Zilong Hua |
| Abstract Scope |
The thermal conductivity of nuclear fuels is a critical physical property that is directly related to reactor efficiency and safety. During the reactor operation, all sorts of microstructure defects will be generated by neutron irradiation and significantly reduce the thermal conductivity of fuels. Currently, experimental efforts to capture such thermal conductivity degradation is primarily through post-irradiation-examination (PIE). It has been speculated that point defects may anneal or cluster into larger scale defects prior to PIE, making the ex-situ measured properties different from the ones measured in-situ. Here we present the latest progress of the development and deployment of a fiber-based photothermal radiometry instrument to in situ measure thermal conductivity of benchmark samples. A similar instrument to be deployed in additive/advanced manufacturing apparatus is also under developing with the purpose to measure thermal properties in the real-time manner, which can be used as an index of the microstructure evolution. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Mechanical Properties, Nuclear Materials, Characterization |