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Transient Torque Technique for Viscosity and Electrical Conductivity Determination of Semiconducting LiquidsA novel apparatus based on transient torque technique is constructed in MSFC/NASA. The apparatus uses a 125um diameter quartz fiber as torsion wire. A high sensitive angular detector is implemented to measure the deflection angle of the crucible containing the liquid. A rotating magnetic field (RMF) is used to induce a rotating flow of a conducting or semiconducting melts. By measuring the magnitude and transient behavior of the induced deflection angle, the electrical conductivity and viscosity of the melt can be measured simultaneously. High purity elements namely Hg, Ga, Zn and Te are tested at room temperature and high temperature up to 900 C.
Document ID
20020066643
Acquisition Source
Marshall Space Flight Center
Document Type
Conference Paper
Authors
Li, C.
(Alabama Univ. Birmingham, AL United States)
Scripa, R. N.
(Alabama Univ. Birmingham, AL United States)
Ban, H.
(Alabama Univ. Birmingham, AL United States)
Lin, B.
(Alabama Univ. Birmingham, AL United States)
Su, C.-H.
(NASA Marshall Space Flight Center Huntsville, AL United States)
Lehoczky, S. L.
(NASA Marshall Space Flight Center Huntsville, AL United States)
Feth, S.
(NASA Marshall Space Flight Center Huntsville, AL United States)
Zhu, S.
(NASA Marshall Space Flight Center Huntsville, AL United States)
Curreri, Peter A.
Date Acquired
August 20, 2013
Publication Date
January 1, 2002
Subject Category
Solid-State Physics
Meeting Information
Meeting: 10th International Ceramics Congress on Modern Materials and Technologies
Location: Florence
Country: Italy
Start Date: July 14, 2002
End Date: July 18, 2002
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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