| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Composite Materials for Nuclear Applications II
|
| Presentation Title |
Recent Progress in the Development of Tungsten Fibre-reinforced Tungsten Composite |
| Author(s) |
Johann Riesch, Jan W. Coenen, Alexander Feichtmayer, Maximilian Fuhr, Lauren Garrison, Henri Greuner, Till Höschen, Alexander Lau, Robert Lürbke, Yiran Mao, Wolfgang Pantleon, Daniel Schwalenberg, Thomas Schwarz-Selinger, Rudolf Neu |
| On-Site Speaker (Planned) |
Johann Riesch |
| Abstract Scope |
Tungsten fibre-reinforced tungsten composites utilize extrinsic mechanisms to improve the fracture toughness and thus mitigate this drawback. In this contribution, we will present the main characteristics and properties of the composite material with a focus on the recent progress. Drawn potassium-doped W wire is used as a ductile, high strength fibrous reinforcement. We will present current work on understanding its deformation behaviour and the change of it by irradiation damage. The matrix of the composite is formed around woven long fibres or randomly orientated short fibres by chemical vapour deposition (CVD) or powder metallurgy (PM), respectively. Recently, the use of W fibre yarns was established in the CVD process and long fibre-reinforcement was achieved in the PM route. The results of high heat flux tests for both production routes will be shown. Based on these tests and due to success in upscaling, the design of new components has been possible. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Characterization, |