About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
|
Symposium
|
Materials Research in Reduced Gravity
|
Presentation Title |
AC Calorimetry of Liquid Metals in Electromagnetic Levitation: Comparison of Procedures in Microgravity and Terrestrial Conditions |
Author(s) |
Romain Pons, Annie Gagnoud, Didier Chaussende, Olga Budenkova |
On-Site Speaker (Planned) |
Olga Budenkova |
Abstract Scope |
Coupling of the electromagnetic levitation with microgravity conditions is favourable because of the possibility of using nearly symmetric electromagnetic fields. Furthermore, decoupling of the inductive heating from the sample positioning, as realised in the levitation system at the ISS, allows one to retrieve the thermal properties of the material using the two-zone model. Under terrestrial conditions, the necessity to overcome the gravity implies the application of a stronger and non-symmetrical EM field that inevitably leads to the forced liquid flow in the sample as well as the strong heating of the latter. Nevertheless, measurement of some properties is still possible with the help of numerical simulations. In the work the numerical modelling of the AC calorimetry is performed for a system in microgravity and for a setup used by the authors in the Terrestrial conditions.
Acknowledgement: The research is supported by CNES via the materials’ science in microgravity programme. |
Proceedings Inclusion? |
Planned: |