About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Developments in Advanced Nuclear Structural Materials
|
| Presentation Title |
Thermal Conductivity of High Entropy Ceramics Before and After Irradiation |
| Author(s) |
Zilong Hua, Kaustubh K. Bawane, Linu Malakkal, Lanh Trinh, Xin Chen, Luke Wadle, Bai Cui, Yongfeng Lu, Lingfeng He |
| On-Site Speaker (Planned) |
Zilong Hua |
| Abstract Scope |
This talk presents an experimental investigation into the thermal conductivity of high entropy carbides (HEC) and borides (HEB) across a range of compositions. Thermal conductivity — a material's ability to transport thermal energy — is a critical physical property, particularly in the energy industry. The disordered cation sublattice inherent to high entropy ceramics is expected to suppress thermal conductivity relative to simpler compositional counterparts, yet experimental data on this phenomenon remain scarce. Using laser-based spatial- and frequency-domain thermoreflectance techniques, we measured the thermal conductivity of HECs and HEBs over a temperature range of 77 K to 773 K. The high spatial resolution of this approach also enables measurements on ion-irradiated HEC samples with damage layers as thin as 1 µm. Together, these results offer valuable insight into how composition and manufacturing process influence the performance of HECs and HEBs, including their behavior in extreme environments such as nuclear reactors. |
| Proceedings Inclusion? |
Planned: |