AbstractThe thermophysical properties of undercooled melts are largely unknown. This is due to the fact that this metastable state is extremely difficult to access by conventional experimental techniques.Data on such properties would, however, not only increase our understanding of the liquid-solid phase transition in general, but, in addition, experiments related to nucleation and materials processing involving metastable phases would also benefit.This paper summarizes a proposal for a microgravity experiment to measure viscosity and surface tension of undercooled metallic melts. The sample will be levitated and molten by electromagnetic fields and surface oscillations of the molten and undercooled sample will be excited. By determining the frequency and damping of the oscillations surface tension and viscosity can be obtained.
The measurement of thermophysical properties in microgravity using electromagnetic levitation
Advances in Space Research ; 11 , 7 ; 263-266
1991-01-01
4 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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