| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1446926 | Acta Materialia | 2012 | 8 Pages |
Abstract
The molten viscous behavior of Vitreloy 106, 106a, 105 and 101 bulk metallic glass-forming alloys was investigated at temperatures above Tliq. Couette concentric cylinder viscometry was used to determine the isothermal and continuous cooling melt viscosities. Isothermal three point beam bending measurements of the viscosity in the vicinity of Tg revealed a kinetically stronger liquid at low temperatures than at high temperatures, near Tliq. This behavior is revealed to be the result of a fragile to strong transition in the undercooled liquid, possibly due to polyamorphism.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Zach Evenson, Tobias Schmitt, Mathias Nicola, Isabella Gallino, Ralf Busch,