Mohr, MarkusWunderlich, Rainer K.Zweiacker, KaiPrades-Rodel, SilkeSauget, RomualdBlatter, AndreasLoge, RolandDommann, AlexNeels, AntoniaJohnson, William L.Fecht, Hans-Joerg2019-06-182019-06-182019-06-182019-02-2510.1038/s41526-019-0065-4https://infoscience.epfl.ch/handle/20.500.14299/157770WOS:000461431700001Here we present measurements of surface tension and viscosity of the bulk glass-forming alloy Pd43Cu27Ni10P20 performed during containerless processing under reduced gravity. We applied the oscillating drop method in an electromagnetic levitation facility on board of parabolic flights. The measured viscosity exhibits a pronounced temperature dependence following an Arrhenius law over a temperature range from 1100 K to 1450 K. Together with literature values of viscosity at lower temperatures, the viscosity of Pd43Cu27Ni10P20 can be well described by a free volume model. X-ray diffraction analysis on the material retrieved after the parabolic flights confirm the glassy nature after vitrification of the bulk samples and thus the absence of crystallization during processing over a wide temperature range.Multidisciplinary SciencesScience & Technology - Other Topicsoscillating drop methodthermodynamic propertiesglass-transitionvolumepd40ni40p20heattext::journal::journal article::research article