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Explanation of the effects of gravity on crystallization of ZrF2–BaF2–LaF3–AlF3–NaF glass

Published online by Cambridge University Press:  31 January 2011

Dennis S. Tucker  and
Edwin C. Ethridge
Dennis S. Tucker
Affiliation:
NASA/Marshall Space Flight Center, Huntsville, Alabama 35812
Edwin C. Ethridge
Affiliation:
NASA/Marshall Space Flight Center, Huntsville, Alabama 35812
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Abstract

The effects of gravity on crystallization of ZrF2–BaF2–LaF3–AlF3–NaF glasses have been studied by utilizing NASA's KC135 aircraft and a sounding rocket. Fibers were heated to the crystallization temperature in unit and reduced gravity. The fibers processed in unit gravity exhibited crystallization, while fibers processed in reduced gravity showed no signs of crystallization. An explanation based on shear thinning of liquids is presented to explain these results.

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Type
Rapid Communications
Information
Journal of Materials Research , Volume 16 , Issue 11 , November 2001 , pp. 3027 - 3029
Copyright
Copyright © Materials Research Society 2001

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References

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