| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Composite Materials for Nuclear Applications III
|
| Presentation Title |
Development of Tungsten Composites as Plasma-Facing Materials by Doping Rare-Earth Boride Particulates |
| Author(s) |
Burçak Boztemur, Yue Xu, Laima Luo, M. Lütfi Öveçoğlu, Duygu Ağaoğulları |
| On-Site Speaker (Planned) |
Burçak Boztemur |
| Abstract Scope |
Tungsten and its alloys are considered to the most promising plasma-facing materials in divertor components due to their high melting point, high strength at elevated temperatures, and high resistance to neutron damage. The rare-earth borides are known as an advanced ceramic material can be reinforced to W to develop its properties. The high purity and nanoscale rare-earth boride (CeB6, NdB6, and ErB4) powders were produced with mechanochemical synthesis. 2 wt.% powders were added into the pre-alloyed 99 wt.% W and 1 wt.% Ni (W1Ni) that is milled. The composite powders were compacted with pressureless sintering and spark plasma sintering methods. The samples were analysed by X-ray diffraction methods, scanning electron microscopy, Archimedes’ density, Vickers microhardness, wear resistance and helium irradiation tests. The best results including higher hardness, lower wear volume and less deformation were obtained with CeB6 reinforcement. The mechanical and irradiation behavior of tungsten were investigated with this study. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Other, Other, Other |