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Thermophysical Properties Measurements of Zr62Cu20Al10Ni8Thermophysical property studies performed at high temperature can prove challenging because of reactivity problems brought on by the elevated temperatures. Contaminants from measuring devices and container walls can cause changes in properties. To prevent this, containerless processing techniques can be employed to isolate a sample during study. A common method used for this is levitation. Typical levitation methods used for containerless processing are, aerodynamically, electromagnetically and electrostatically based. All levitation methods reduce heterogeneous nucleation sites, 'which in turn provide access to metastable undercooled phases. In particular, electrostatic levitation is appealing because sample motion and stirring are minimized; and by combining it with optically based non-contact measuring techniques, many thermophysical properties can be measured. Applying some of these techniques, surface tension, viscosity and density have been measured for the glass forming alloy Zr62Cu20Al10Ni8 and will be presented with a brief overview of the non-contact measuring method used.
Document ID
20060013646
Document Type
Conference Paper
Authors
Bradshaw, Richard C. (Massachusetts Univ. MA, United States)
Waren, Mary (Massachusetts Univ. MA, United States)
Rogers, Jan R. (NASA Marshall Space Flight Center Huntsville, AL, United States)
Rathz, Thomas J. (Alabama Univ. AL, United States)
Gangopadhyay, Anup K. (Washington Univ. United States)
Kelton, Ken F. (Washington Univ. United States)
Hyers, Robert W. (Massachusetts Univ. MA, United States)
Date Acquired
August 23, 2013
Publication Date
January 1, 2006
Subject Category
Fluid Mechanics and Thermodynamics
Meeting Information
The Minerals, Metals and Materials Society(San Antonio, TX)
Funding Number(s)
CONTRACT_GRANT: NNM0401G
Distribution Limits
Public
Copyright
Other