About this Abstract |
| Meeting |
2027 TMS Annual Meeting & Exhibition
|
| Symposium
|
Field-Assisted Material Processing and Solidification
|
| Presentation Title |
Field-Assisted Material Processing and Solidification: Examples from ESA’s Materials Science in Space Program |
| Author(s) |
Wilhelmus H. Sillekens, Ulrike Hecht, Douglas Matson, Sonja Steinbach, Thomas Volkmann |
| On-Site Speaker (Planned) |
Wilhelmus H. Sillekens |
| Abstract Scope |
Gravity has a distinct influence on solidification processes in a sense that it induces buoyancy/sedimentation and convection, which hampers the study of solidification physics. Hence there is scientific motivation to conduct such experiments in space ‒ e.g., onboard the International Space Station ‒ where microgravity effectively renders clinical (purely diffusive) conditions. Yet, the implementation of external fields in such a situation offers additional research prospects as well. This presentation introduces examples of this research, deriving from the materials science in space program of the European Space Agency (ESA). These examples include the use of electromagnetic fields to investigate the effects of controlled fluid flow on directionally solidified microstructures, and on delay time and growth velocity of (meta)-stable phases in undercooled solidifying melts during containerless processing. An example of gravitational field enhancement relates to centrifuge experiments to investigate solidification microstructures in dependence on gravity level (ranging from microgravity to hypergravity). |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Solidification, Other, Other |