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Viscosity Measurement for Tellurium MeltThe viscosity of high temperature Te melt was measured using a new technique in which a rotating magnetic field was applied to the melt sealed in a suspended ampoule, and the torque exerted by rotating melt flow on the ampoule wall was measured. Governing equations for the coupled melt flow and ampoule torsional oscillation were solved, and the viscosity was extracted from the experimental data by numerical fitting. The computational result showed good agreement with experimental data. The melt velocity transient initiated by the rotating magnetic field reached a stable condition quickly, allowing the viscosity and electrical conductivity of the melt to be determined in a short period.
Document ID
20060024602
Acquisition Source
Marshall Space Flight Center
Document Type
Reprint (Version printed in journal)
Authors
Lin, Bochuan
(Alabama Univ. Birmingham, AL, United States)
Li, Chao
(Alabama Univ. Birmingham, AL, United States)
Ban, Heng
(Alabama Univ. Birmingham, AL, United States)
Scripa, Rosalia N.
(Alabama Univ. Birmingham, AL, United States)
Su, Ching-Hua
(NASA Marshall Space Flight Center Huntsville, AL, United States)
Lehoczky, Sandor L.
(NASA Marshall Space Flight Center Huntsville, AL, United States)
Date Acquired
August 23, 2013
Publication Date
January 1, 2006
Subject Category
Fluid Mechanics And Thermodynamics
Distribution Limits
Public
Copyright
Other

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