| About this Abstract |
| Meeting |
2021 TMS Annual Meeting & Exhibition
|
| Symposium
|
Bulk Metallic Glasses XVIII
|
| Presentation Title |
Correlated Disorder Order in a Model Binary Glass |
| Author(s) |
Peter Derlet |
| On-Site Speaker (Planned) |
Peter Derlet |
| Abstract Scope |
A quantitative understanding of the microscopic constraints that underlie a well relaxed glassy structure is the key to developing mathematically robust theories of structural evolution and plasticity for the amorphous solid. Here we demonstrate the applicability of one such theory of local bonding constraints developed by D. R. Nelson [Phys. Rev. B 28, 5515 (1983)] for a model binary Lennard-Jones glass structure. We find that a large proportion of atomic environments follow the corresponding connectivity rules, and that a low energy glass structure corresponds to a minimally defected bond-defect network. The results are discussed in terms of how such a defect network can provide a rigorous framework in which to quantify thermally activated structural excitations, revealing that those high-energy regions not following the connectivity constraints are more likely to undergo structural rearrangement resulting in a final structure better able to be described by the defect bond formalism. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Modeling and Simulation, Computational Materials Science & Engineering, |