Article ID Journal Published Year Pages File Type
1485212 Journal of Non-Crystalline Solids 2007 4 Pages PDF
Abstract
Viscosity of (GeSe2)x(Sb2Se3)1−x undercooled melts (x = 0.4-0.8) was measured using parallel-plate method and penetration method. By using these two techniques viscosity of the whole measurable region of undercooled melt and of the part of glass region can be measured. In this relatively broad viscosity interval (seven orders of magnitude) all measured samples show Newtonian behavior and the dependence of their viscosity on temperature can be described by a simple Arrhenius equation. The kinetic fragilities calculated from these dependencies show similar compositional dependence as heat capacity changes at glass transition measured by DSC.
Related Topics
Physical Sciences and Engineering Materials Science Ceramics and Composites
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