| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
2025 Technical Division Student Poster Contest
|
| Presentation Title |
SPG-92: Validation and Implementation of Thermal Conductivity Measurements in Non-Contact Modulation Calorimetry |
| Author(s) |
Regan Krizan, Lydia Tonani-Penha, Gwendolyn Bracker, Robert Hyers |
| On-Site Speaker (Planned) |
Regan Krizan |
| Abstract Scope |
In experiments on the Electromagnetic Levitation Laboratory on the International Space Station (ISS-EML), metal samples are levitated and heated using electromagnetic fields to take precise measurements of thermophysical properties. Modulation calorimetry is used to determine the specific heat capacity and thermal conductivity by oscillating the heating power input. In typical modulation calorimetry experiments, the frequency to determine thermal conductivity is twice the frequency for specific heat capacity. The paper by Tonani-Penha, et al., suggests a higher frequency range for the thermal conductivity of a sample to obtain a deeper thermal gradient and more accurate results. A deeper look into the effects this parameter has on the accuracy and precision of the thermal conductivity measurements is needed. A numerical model of the heating of the sample is applied to determine the range of frequencies for which this method is feasible, and the resulting impact on precision and accuracy of the measurements. |
| Proceedings Inclusion? |
Undecided |
| Keywords |
Mechanical Properties, Modeling and Simulation, |