The viscosity of As2Se3 glass within the hot zone region of the fiber drawing process was estimated using the actual temperature distribution and standard continuum mechanics equations for a linear viscous material. The obtained values for the shear viscosity
lie between 103 and 106 Pa·s and are in good agreement with those extrapolated from bending and penetration tests at a lower temperature. In our condition, neck‐down region is to be found almost independent on the drawing rate or on the fiber tension.
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Document Type: Research Article
Equipe Verres et Céramiques, UMR CNRS 6226 Sciences Chimiques de Rennes, Université de Rennes 1, 35042 Rennes cedex, France
LARMAUR, ERL-CNRS 6274, Université de Rennes 1, 35042 Rennes cedex, France
Publication date: August 1, 2011