Please use this identifier to cite or link to this item: doi:10.22028/D291-39649
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Title: Impact of Sulfur on the melt dynamics of glass forming Ti75Ni25−xSx
Author(s): Wilden, J.
Yang, F.
Holland-Moritz, D.
Szabó, S.
Lohstroh, W.
Bochtler, B.
Busch, R.
Meyer, A.
Language: English
Title: Applied Physics Letters
Volume: 117
Issue: 1
Publisher/Platform: AIP Publishing
Year of Publication: 2020
Free key words: Glass dynamics
Liquid metals
Neutron scattering
DDC notations: 500 Science
Publikation type: Journal Article
Abstract: Substitution of Nickel by Sulfur leads to bulk metallic glass formation in eutectic Ti75Ni25. In order to understand the improved glass forming ability, a detailed analysis of the melt dynamics was performed. We measured the density, the viscosity, and the self-diffusion of Ti75Ni25−xSx (x = 0, 5, 8) melts as a function of temperature. Moreover, the viscosity was measured under reduced gravity conditions to benchmark ground-based data. The self-diffusion coefficients were probed by incoherent, quasi-elastic neutron scattering. All measurements were combined with electrostatic or electromagnetic levitation, in order to process these highly reactive Titanium-based melts. From the measured density, the packing fraction was calculated as a function of temperature. In contrast to other bulk metallic glasses, the decrease in melt dynamics comes along with the decrease in packing density.
DOI of the first publication: 10.1063/5.0012409
URL of the first publication:
Link to this record: urn:nbn:de:bsz:291--ds-396499
ISSN: 1077-3118
Date of registration: 3-May-2023
Faculty: NT - Naturwissenschaftlich- Technische Fakultät
Department: NT - Materialwissenschaft und Werkstofftechnik
Professorship: NT - Prof. Dr. Ralf Busch
Collections:SciDok - Der Wissenschaftsserver der Universität des Saarlandes

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