About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
|
Symposium
|
Bulk Metallic Glasses XX
|
Presentation Title |
Uncovering the Structural Evolution of Metallic Liquids during Vitrification |
Author(s) |
Konstantinos Georgarakis |
On-Site Speaker (Planned) |
Konstantinos Georgarakis |
Abstract Scope |
A metallic glass is formed when a metallic melt is cooled rapidly enough so that crystallization is avoided upon solidification. The transition of a liquid to a glass occurs with a remarkable slowdown of the dynamics in the undercooled liquid, a phenomenon which remains poorly understood. Even though viscosity increases by several orders of magnitude between the melting and the glass transition temperature, the accompanying changes in the atomic structure are rather subtle. Recent advances in levitation techniques and gave new possibilities to study liquids and undercooled metallic melts using synchrotron and neutron scattering techniques. Here we discuss the structural evolution during vitrification monitored in-situ using high-energy X-ray diffraction for a variety of glass forming liquids from above the liquidus to well below the glass transition temperature. Analysis of the changes observed in the short and medium range order contribute to the understanding of glass formation in metals. |
Proceedings Inclusion? |
Planned: |
Keywords |
Solidification, Characterization, Other |