| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Special Topics in Nuclear Materials: Lessons Learned; Non-Energy Systems; and Coupled Extremes
|
| Presentation Title |
GIRAFFE – In Situ Material TestsUnder Fusion-Relevant Conditions |
| Author(s) |
Johann Riesch, Alexander Feichtmayer, Marcel Appel, Max Boleininger, Sebastian Estermann, Till Höschen, Thomas Schwarz-Selinger, Sergei L. Dudarev, Rudolf Neu |
| On-Site Speaker (Planned) |
Johann Riesch |
| Abstract Scope |
In a future fusion reactor, the synergistic effects of irradiation damage, hydrogen, impurities such as helium, and mechanical stresses will significantly affect the properties of the materials used. To study this, the General-Purpose Irradiated Fiber and Foil Experiment (Giraffe) was developed. Giraffe enables in situ mechanical testing with simultaneous irradiation by MeV energy ions (e.g. protons, tungsten) from a 3 MV tandem accelerator or keV ions from a plasma source (e.g. hydrogen, helium). The use of samples with a thickness of a few µm makes it possible to irradiate large volume fractions despite the very shallow penetration depth typical of ion irradiation. A sample environment control system allowing heating up to 1600°C and cooling down to -150°C is presently commissioned. In this contribution, an overview of the features of the device and the capabilities of the new methodology will be given as well as a summary of performed experiments. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Nuclear Materials, Characterization, Mechanical Properties |