About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Nanostructured Materials in Extreme Environments IV
|
| Presentation Title |
Fabrication and Thermal Stability of Nanoporous Tungsten |
| Author(s) |
Luis Granadillo, Julian Rocher, John Misiaszek, Ian McCue |
| On-Site Speaker (Planned) |
Luis Granadillo |
| Abstract Scope |
Nanoporous materials show promise for use in nuclear reactors due to their ability to mitigate the accumulation of radiation damage. Their high surface-to-volume ratio promotes annihilation of defects generated during irradiation. Prior research has largely focused on nanoporous Au or Ag, which are unsuitable for structural applications in nuclear environments due to their poor strength, low melting temperatures, and low intrinsic radiation resistance. We introduce a novel deposition-based processing method to create nanoporous W via dealloying, utilizing radiation-compatible Ti and Cu as the dealloyed element and the dealloying media, respectively. To improve our understanding of the performance of these materials in fusion conditions, we investigated their morphological evolution and coarsening kinetics at elevated temperatures. Experimental results were used to validate atomistic kinetic Monte Carlo simulations, enabling insight into behavior at longer time scales. This work advances the use of free surfaces to enhance radiation tolerance in advanced nuclear materials. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Nanotechnology, Nuclear Materials, Surface Modification and Coatings |