Probing the Degree of Heterogeneity within a Shear Band of a Model Glass
| Autor: | Fathollah Varnik, A.E. Lagogianni, Muhammad Hassani |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Length scale
Condensed Matter - Materials Science Materials science Amorphous metal Coordination number Materials Science (cond-mat.mtrl-sci) FOS: Physical sciences General Physics and Astronomy Binary number Condensed Matter - Soft Condensed Matter 01 natural sciences Molecular physics Condensed Matter::Soft Condensed Matter Molecular dynamics Shear (geology) Heat generation 0103 physical sciences Soft Condensed Matter (cond-mat.soft) 010306 general physics Shear band |
| Zdroj: | Physical Review Letters. 123 |
| ISSN: | 1079-7114 0031-9007 |
| DOI: | 10.1103/physrevlett.123.195502 |
| Popis: | Recent experiments provide evidence for density variations along shear bands (SB) in metallic glasses with a length scale of a few hundreds nanometers. Via molecular dynamics simulations of a generic binary glass model, here we show that this is strongly correlated with variations of composition, coordination number, viscosity and heat generation. Individual shear events along the SB-path show a mean distance of a few nanometers, comparable to recent experimental findings on medium range order. The aforementioned variations result from these localized perturbations, mediated by elasticity. This version includes the supplementary material as well |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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