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Effects of Gravity on ZBLAN Glass CrystallizationThe effects of gravity on the crystallization of ZrF4-BaF2-LaF3-AlF3- NaF glasses have been studied utilizing NASA's KC135 and a sounding rocket, Fibers and cylinders of ZBLAN glass were heated to the crystallization temperature in unit and reduced gravity. When processed in unit gravity the glass crystallized, but when processed in reduced gravity, crystallization was suppressed. A possible explanation involving shear thinning is presented to explain these results.
Document ID
20030106483
Acquisition Source
Marshall Space Flight Center
Document Type
Preprint (Draft being sent to journal)
Authors
Tucker, Dennis S. (NASA Marshall Space Flight Center Huntsville, AL, United States)
Ethridge, Edwin C. (NASA Marshall Space Flight Center Huntsville, AL, United States)
Smith, G. A. (Alabama Univ. Huntsville, AL, United States)
Workman, G. (Alabama Univ. Huntsville, AL, United States)
Date Acquired
August 21, 2013
Publication Date
January 1, 2003
Subject Category
Solid-State Physics
Report/Patent Number
ECU:MTP-03-08
Meeting Information
Meeting: Proceedings of the Microgravity Transport Processes in Fluid, Thermal, Biological and Materials Sciences III
Location: Davos
Country: Switzerland
Start Date: September 14, 2003
End Date: September 19, 2003
Distribution Limits
Public
Copyright
Public Use Permitted.
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