| About this Abstract |
| Meeting |
2022 TMS Annual Meeting & Exhibition
|
| Symposium
|
Materials Systems for the Future of Fusion Energy
|
| Presentation Title |
N-29: Thermal and Mechanical Characterization of W-Cu Composites for Next Generation Fusion Devices |
| Author(s) |
Elena Tejado Garrido, Alexander von Müller, Jeong-Ha You, J.Y. Pastor |
| On-Site Speaker (Planned) |
Elena Tejado Garrido |
| Abstract Scope |
W–Cu metal matrix composites (MMC) offer a unique combination of thermophysical and mechanical properties which are of great interest for the development of the heat-exhaust system (divertor) of the European demonstrational fusion reactor (DEMO). The high tensile strength and low thermal expansion coefficient of W are combined with a coherent Cu-based matrix that ensures high thermal conductivity and ductility of the system. The excellent wetting and bonding characteristics between them is another beneficial feature that is also valid for the joining between the W armour and the heat sink.
In this contribution, the thermomechanical properties of novel W-Cu MMCs are presented. Focus is put on the microstructure and tensile strength up to 800 °C under a high vacuum atmosphere. Although strong degradation is observed at the highest temperature tested, the mechanical properties at operational temperatures, i.e., below 350 °C, remain rather high and even better than composites materials reported previously. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Mechanical Properties, Composites, Other |