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Inductive Measurement of Thermophysical Properties of Metallic Melts

Lohöfer, Georg (2009) Inductive Measurement of Thermophysical Properties of Metallic Melts. In: Proceedings 6th International Conference on Electromagnetic Processing of Materials, EPM 2009, pp. 407-410. Electromagnetic Processing od Materials, EPM 2009, 19. - 23 Okt. 2009, Dresden, Deutschland.

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Abstract

For investigations on highly reacting metallic melts, metallic melts at high temperatures, or undercooled metallic melts, containerless handling methods of the liquid as well as contactless measurement methods are beneficial or even mandatory. For the containerless processing of metallic melts we use the well established electromagnetic levitation technique, which utilizes high frequency alternating magnetic fields for the contactless, inductive positioning and heating of electrically conducting samples. For the contactless measurement of the thermophysical properties of the samples optical methods are generally used. But the existence of high frequency magnetic fields suggests to use also inductive methods for noncontact measurements of liquid metal properties. In the following a measurement device is presented which utilizes the high frequency magnetic field of a microgravity electromagnetic levitation facility simultaneously also for an inductive determination of thermophysical properties of levitated metallic melts, like surface tension, viscosity and electrical resistivity.

Document Type:Conference or Workshop Item (Speech, Paper)
Title:Inductive Measurement of Thermophysical Properties of Metallic Melts
Authors:
AuthorsInstitution or Email of Authors
Lohöfer, GeorgMP
Date:October 2009
Journal or Publication Title:Proceedings 6th International Conference on Electromagnetic Processing of Materials, EPM 2009
Page Range:pp. 407-410
Status:Published
Keywords:metallic melt, thermophysical properties, electromagnetic levitation, inductive measurement device
Event Title:Electromagnetic Processing od Materials, EPM 2009
Event Location:Dresden, Deutschland
Event Type:international Conference
Event Dates:19. - 23 Okt. 2009
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W FR - Forschung unter Weltraumbedingungen (old)
DLR - Research area:Space
DLR - Program:W FR - Forschung unter Weltraumbedingungen
DLR - Research theme (Project):W - Vorhaben Materialwissenschaftliche Forschung (old)
Location: Köln-Porz
Institutes and Institutions:Institute of Materials Physics in Space
Deposited By: Georg Lohöfer
Deposited On:03 Dec 2009 08:40
Last Modified:03 Dec 2009 08:40

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