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Nucleation and Crystallization as Induced by Bending Stress in Lithium Silicate Glass FibersGlass Fibers of Li2O.2SiO2 (LS2) and Li2O.1.6SiO2 (LS1.6) compositions were heated near, but below, the glass transition temperature for different times while subjected to a constant bending stress of about 1.2 GPa. The nucleation density and the crystallization tendency estimated by differential thermal analysis (DTA) of a glass sample in the vicinity of the maximum of the bending stress increased relative to that of stress-free glass fibers. LS2 glass fibers were found more resistant to nucleation and crystallization than the Ls1.6 glass fibers. These results are discussed in regards to shear thinning effects on glass stability.
Document ID
20040075678
Acquisition Source
Marshall Space Flight Center
Document Type
Conference Paper
Authors
Reis, Signo T.
(Missouri Univ. Rolla, MO, United States)
Kim, Cheol W.
(NASA Marshall Space Flight Center Huntsville, AL, United States)
Brow, Richard K.
(NASA Marshall Space Flight Center Huntsville, AL, United States)
Ray, Chandra S.
(NASA Marshall Space Flight Center Huntsville, AL, United States)
Date Acquired
August 21, 2013
Publication Date
September 21, 2003
Subject Category
Solid-State Physics
Meeting Information
Meeting: Proceedings of the International Congress on Glass Conference
Location: Sao Paolo
Country: Brazil
Start Date: September 21, 2003
End Date: September 25, 2003
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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