| About this Abstract |
| Meeting |
2021 TMS Annual Meeting & Exhibition
|
| Symposium
|
Composite Materials for Nuclear Applications
|
| Presentation Title |
W2C-reinforced Tungsten: A Promising Candidate for DEMO Divertor Material |
| Author(s) |
Petra Jenus, Aljaz Iveković, Matej Kocen, Anze Abram, Andreja Sestan, Andrei Galatanu, Magdalena Galatanu, Sandra Tarancón, Elena Tejado, Jose Ygnacio Pastor, Marius Wirtz, Gerald Pintsuk, Sasa Novak |
| On-Site Speaker (Planned) |
Aljaz Iveković |
| Abstract Scope |
Tungsten is considered as the material of choice for the divertor application of fusion power plants due to its intrinsic thermo-physical properties. However, one main drawback is the recrystallization induced reduction of its mechanical properties at elevated temperatures. Therefore, the aim of the conducted research was to improve the material properties to be able to sustain plasma-facing conditions, especially to be able to resist high thermal loads imposed on the divertor during operation. The reinforcement of tungsten by incorporation of carbide nanoparticles, resulted in a material with a stable microstructure and promising high-temperature behaviour.
WC nanoparticles were used as a source for the in-situ formation of W2C inclusions in the W matrix during the thermal treatment of powder mixtures with a field assisted sintering technique (FAST). In addition to thorough microstructural and phase analysis, thermo-mechanical properties at room and elevated temperature, as well as high-heat-flux tests, will be presented. |
| Proceedings Inclusion? |
Planned: |