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MM: Fachverband Metall- und Materialphysik

MM 19: Poster Session

MM 19.31: Poster

Dienstag, 10. März 2026, 18:00–20:00, P5

Effects of physical properties on the solidification kinetics of undercooled Zr-Cu-Ni alloy under reduced gravity — •Chu Yu, Yindong Fang, and Stephanie Lippmann — IAP, FSU Jena, Albert-Einstein-Straße 15, 07745, Jena, Germany

In our previous work, we investigated the solidification kinetics of glass forming alloy Zr50Cu35Ni15 using electromagnetic levitation facilities (EML) under different gravity conditions to compare with the electrostatic levitation facility (ESL). Using both methods, crystal growth velocities increased with increasing undercooling below 260 K. Within the undercooling range 260-320K, velocities plateaued. Compared to ESL, EML on the ground generated stronger convective flow in the undercooled melt. Slight differences in velocities were observed within the undercooling range 50-175K. However, the primary phase is not changed by the magnetic convection. To investigate the differences in the low undercooling region and the physical properties of the melt, we measured the conductivity and viscosity of the melt under reduced gravity during parabolic flight campaign 2023 and 2025. The relationship between viscosity and crystal growth velocities at the low undercooling region is discussed.

Keywords: solidification kinetics; glass forming alloy; levitation