Regensburg 2025 – wissenschaftliches Programm

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MM: Fachverband Metall- und Materialphysik

MM 26: Topical Session: Thermophysical Properties of Bulk Metallic Glasses and Bulk Metallic Glass-forming Liquids

MM 26.1: Vortrag

Donnerstag, 20. März 2025, 10:15–10:30, H10

Influence of sulfur on the amorphous structure, high temperature viscosity and solidification of Zr-based bulk metallic glass formers — •Bastian Adam, Oliver Kruse, Lucas Mathias Ruschel, Maximillian Frey, Nico Neuber, and Ralf Busch — Chair of Metallic materials (LMW), Saarbrücken, Germany

The usage of the element sulfur in Bulk Metallic Glass (BMG) synthesis was recently introduced by Kuball et al. and lead to increased research interest into these new family of BMG [1]. Here we report on the influence of sulfur on the A2B type intermetallic composition (Zr50Ti16.6Ni18.3Cu15) that was characterized by container-less electromagnetic melting under microgravity within the 43rd & 44th TEMPUS parabolic flight campaigns by the German aerospace center (DLR). The investigation is accompanied by structural investigations of the amorphous solid and liquid that were conducted with the help of an electrostatic levitation device to observe the structure and solidification in an in-situ wide-angle scattering diffraction experiment at the German electron synchrotron (DESY) in Hamburg.

[1]A. Kuball, O. Gross, B. Bochtler, and R. Busch, Sulfur-bearing metallic glasses: A new family of bulk glass-forming alloys, Scr. Mater., 2018.

Keywords: BMG; TEMPUS; synchrotron diffraction; sulfur