Beets, Nathan and Farkas, Diana and Albe, Karsten (2020):
The Mechanical Response of Nanoporous Gold and Silver Foams with Varying Composition and Surface Segregation.
In: Acta Materialia, ISSN 13596454,
DOI: 10.1016/j.actamat.2020.10.064,
[Article]
Abstract
The mechanical response of an Au-Ag nanoporous foam is studied via molecular dynamics simulations, while segregation effects are captured by a Monte-Carlo simulation scheme. The addition of silver to nanoporous Au structures increases the strength of the foams.
Dislocation evolution in alloyed and pure elemental structures is analyzed. We find that the yielding behavior is dependent on surface compositions and the corresponding capillary forces, while elastic behavior is dependent on bulk composition. Trends in the yield response of this material as a function of size and surface composition are effectively predicted with a model that accounts for surface effects.
| Item Type: | Article |
|---|---|
| Erschienen: | 2020 |
| Creators: | Beets, Nathan and Farkas, Diana and Albe, Karsten |
| Title: | The Mechanical Response of Nanoporous Gold and Silver Foams with Varying Composition and Surface Segregation |
| Language: | English |
| Abstract: | The mechanical response of an Au-Ag nanoporous foam is studied via molecular dynamics simulations, while segregation effects are captured by a Monte-Carlo simulation scheme. The addition of silver to nanoporous Au structures increases the strength of the foams. Dislocation evolution in alloyed and pure elemental structures is analyzed. We find that the yielding behavior is dependent on surface compositions and the corresponding capillary forces, while elastic behavior is dependent on bulk composition. Trends in the yield response of this material as a function of size and surface composition are effectively predicted with a model that accounts for surface effects. |
| Journal or Publication Title: | Acta Materialia |
| Uncontrolled Keywords: | PO |
| Divisions: | 11 Department of Materials and Earth Sciences 11 Department of Materials and Earth Sciences > Material Science 11 Department of Materials and Earth Sciences > Material Science > Materials Modelling Zentrale Einrichtungen Zentrale Einrichtungen > University IT-Service and Computing Centre (HRZ) Zentrale Einrichtungen > University IT-Service and Computing Centre (HRZ) > Hochleistungsrechner |
| Date Deposited: | 05 Nov 2020 06:24 |
| DOI: | 10.1016/j.actamat.2020.10.064 |
| Official URL: | https://doi.org/10.1016/j.actamat.2020.10.064 |
| Export: | |
| Suche nach Titel in: | TUfind oder in Google |
 |
Send an inquiry |
Options (only for editors)
 |
Show editorial Details |
Drucken
Impressum