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Contactless measurement of temperature-dependent viscosity and surface tension of liquid Al69.1Cu12.8Ag18.1 eutectic alloy under microgravity conditions using the oscillating-drop-method

Beckers, Mitja and Engelhardt, Marc and Schneider, Stephan (2021) Contactless measurement of temperature-dependent viscosity and surface tension of liquid Al69.1Cu12.8Ag18.1 eutectic alloy under microgravity conditions using the oscillating-drop-method. High Temperatures-High Pressures, 50 (3), pp. 167-184. Old City Publishing. doi: 10.32908/hthp.v50.1031. ISSN 0018-1544.

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Official URL: https://www.oldcitypublishing.com/pdf/9972

Abstract

Thermophysical properties of the Al69.1Cu12.8Ag18.1 eutectic liquid alloy are of particular interest for support of self-and inter-diffusion studies. In the presented work, Al69.1Cu12.8Ag18.1 -samples were processed contactlessly by electromagnetic levitation under microgravity conditions using the TEMPUS facility. The measurements were performed onboard the Airbus A310 Zero-G in parabolic flight campaigns. The oscillating drop method (ODM) was used for measurements of the viscosity via oscillations damping and surface tension via oscillations frequency. These were determined for temperatures in the range of 900-1500 K by analysis of the oscillation spectrum obtained from the electrical impedance. The latter was measured using the Sample Coupling Electronics. An Arrhenius-law was used to fit the temperature-dependent viscosity data.

Item URL in elib:https://elib.dlr.de/142157/
Document Type:Article
Title:Contactless measurement of temperature-dependent viscosity and surface tension of liquid Al69.1Cu12.8Ag18.1 eutectic alloy under microgravity conditions using the oscillating-drop-method
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Beckers, MitjaMitja.Beckers (at) dlr.dehttps://orcid.org/0000-0002-8817-1896
Engelhardt, MarcMarc.Engelhardt (at) dlr.deUNSPECIFIED
Schneider, StephanStephan.Schneider (at) dlr.deUNSPECIFIED
Date:30 April 2021
Journal or Publication Title:High Temperatures-High Pressures
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:50
DOI:10.32908/hthp.v50.1031
Page Range:pp. 167-184
Publisher:Old City Publishing
Series Name:Thermophysical Properties: Fundamentals and Applications
ISSN:0018-1544
Status:Published
Keywords:ODM, viscosity, ternary alloy, eutectic, AlCuAg, EML, TEMPUS, surface tension, Arrhenius, parabolic flight
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 - Materials Research and Microgravity (MuM)
Location: Köln-Porz
Institutes and Institutions:Institute of Materials Physics in Space
Deposited By: Beckers, Mitja
Deposited On:10 May 2021 08:54
Last Modified:23 Jul 2022 13:45

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