TU Darmstadt / ULB / TUbiblio

The Mechanical Response of Nanoporous Gold and Silver Foams with Varying Composition and Surface Segregation

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 Send an inquiry

Options (only for editors)
Show editorial Details Show editorial Details