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Thermal Characterization of the Universal Multizone CrystallizatorThe Universal Multizone Crystallizator (UMC) is a special apparatus for crystal growth under terrestrial and microgravity conditions. The use of twenty-five zones allows the, UMC to be used for several normal freezing growth techniques. The thermal profile is electronically translated along the stationary sample by systematically reducing the power to the control zones. Elimination of mechanical translation devices increases the systems reliability while simultaneously reducing the size and weight. This paper addresses the UMC furnace design, sample cartridge, typical thermal profiles and corresponding power requirements necessary for two normal freezing techniques: dynamic gradient freeze and zone melting crystal growth.
Document ID
19970007000
Acquisition Source
Marshall Space Flight Center
Document Type
Conference Paper
Authors
Watring, D. A. (NASA Marshall Space Flight Center Huntsville, AL United States)
Lehoczky, S. L. (NASA Marshall Space Flight Center Huntsville, AL United States)
Babcsan, N. (Miskolc Univ. Miskolc-Egyetemvarous, Hungary)
Barczy, P. (Miskolc Univ. Miskolc-Egyetemvarous, Hungary)
Date Acquired
September 6, 2013
Publication Date
January 1, 1995
Subject Category
Solid-State Physics
Report/Patent Number
NAS 1.15:111791
NASA-TM-111791
Meeting Information
Meeting: Solidification and Gravity
Location: Miskolc
Country: Hungary
Start Date: April 25, 1995
End Date: April 28, 1995
Accession Number
97N13864
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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