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Viscosity measurements of metallic melts using the oscillating drop technique

Heintzmann, Pascal and Yang, Fan and Schneider, Stephan and Lohöfer, Georg and Meyer, Andreas (2016) Viscosity measurements of metallic melts using the oscillating drop technique. Applied Physics Letters, 108 (24), p. 241908. American Institute of Physics (AIP). doi: 10.1063/1.4953871. ISSN 0003-6951.

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Official URL: http://scitation.aip.org/content/aip/journal/apl/108/24/10.1063/1.4953871


By means of benchmarking reduced gravity experiments, we have verified the measured viscosity of binary Zr-Ni glass forming liquids utilizing the oscillating drop technique combined with ground-based electrostatic levitation (ESL). Reliable viscosity data can be obtained as long as internal viscous damping of a single oscillation mode of a levitated drop dominates external perturbations. This can be verified by the absence of a sample mass dependence of the results. ESL is hence an excellent tool for studying the viscosity of metallic glass forming melts in the range of about 10-250 mPa s, with sample masses below 100 mg. To this end, we show that, for binary Zr-Ni melts, the viscosity is qualitatively controlled by the packing density.

Item URL in elib:https://elib.dlr.de/105049/
Document Type:Article
Title:Viscosity measurements of metallic melts using the oscillating drop technique
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Heintzmann, PascalPascal.Heintzmann (at) dlr.deUNSPECIFIED
Yang, FanFan.Yang (at) dlr.deUNSPECIFIED
Schneider, Stephanstephan.schneider (at) dlr.deUNSPECIFIED
Lohöfer, Georggeorg.lohoefer (at) dlr.deUNSPECIFIED
Meyer, AndreasAndreas.Meyer (at) dlr.deUNSPECIFIED
Date:14 June 2016
Journal or Publication Title:Applied Physics Letters
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:Yes
Page Range:p. 241908
Publisher:American Institute of Physics (AIP)
Keywords:viscosity, oscillating drop technique, electro static, electro magnetic, levitation
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Research under Space Conditions
DLR - Research area:Raumfahrt
DLR - Program:R FR - Research under Space Conditions
DLR - Research theme (Project):R - Vorhaben Materialforschung unter Mikro-g (old)
Location: Köln-Porz
Institutes and Institutions:Institute of Materials Physics in Space
Deposited By: Heintzmann, Pascal
Deposited On:07 Jul 2016 14:39
Last Modified:31 Jul 2019 20:02

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