| About this Abstract |
| Meeting |
2021 TMS Annual Meeting & Exhibition
|
| Symposium
|
Composite Materials for Nuclear Applications
|
| Presentation Title |
Tungsten Fibre-reinforced Copper – A High-Conductivity, High-Strength Composite Material for Plasma-facing Component Applications |
| Author(s) |
Alexander Von Mueller, Bernd Böswirth, Henri Greuner, Rudolf Neu, Udo Siefken, Eliseo Visca, Jeong-Ha You |
| On-Site Speaker (Planned) |
Alexander Von Mueller |
| Abstract Scope |
In future deuterium-tritium magnetic confinement fusion reactors plasma-facing components (PFCs) have to sustain intense particle, heat and neutron fluxes. This is especially true for PFCs in the divertor region where materials with high thermal conductivity have to be applied in order that steady-state heat fluxes in the range of 10-20 MW/m2 can be exhausted reliably. Currently favoured heat sink materials with regard to highly loaded PFCs are copper alloys mainly due to their high conductivity. However, the deterioration of the mechanical properties of such materials under fusion neutron irradiation - embrittlement at lower and softening at elevated operating temperatures - represents a significant issue. Against this background, development work regarding tungsten fibre-reinforced copper (Wf-Cu) composite materials was pursued during recent years. In this context, the contribution will summarise topical results with respect to the performed research activities, including high heat flux tests of Wf-Cu within tungsten monoblock type PFC mock-ups. |
| Proceedings Inclusion? |
Planned: |