About this Abstract |
Meeting |
2020 TMS Annual Meeting & Exhibition
|
Symposium
|
Bulk Metallic Glasses XVII
|
Presentation Title |
Atomic Structural Features Hidden in Structure Factor of Metallic Alloy Liquids |
Author(s) |
Chae Woo Ryu, Wojciech Dmowski, Takeshi Egami |
On-Site Speaker (Planned) |
Chae Woo Ryu |
Abstract Scope |
Disordered atomic structures in metallic liquids and glasses are difficult to characterize for their structural features owing to the absence of long ranged translational periodicity. To unravel an enigmatic problem, neutron and X-ray diffraction experiments of metallic glasses have been carried out, it is therefore anticipated that the first diffraction peak of the structure factor, S(Q), carries significant information about order in metallic glasses. In the present study, we use high energy X-ray scattering and electro-static levitation in combination with molecular dynamics simulation and suggest that the shape of the first peak of S(Q) of metallic alloy liquids show specific features in the structure of a system. We found that the first peak shape of S(Q) reflects diversity in atomic sizes, structural coherence length, and the closeness to the ideal glass state, which allows us to understand the inherent nature of structural disorder in metallic system. |
Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |