We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
Simulations of electromechanical shape transformations of Au nanoparticles (Phys. Status Solidi B 1/2015).
- Authors
Zadin, Vahur; Krasheninnikov, Arkady V.; Djurabekova, Flyura; Nordlund, Kai
- Abstract
Metallic nanocrystals often demonstrate intriguing properties due to the large surface areas characteristic of low‐dimensional objects. Studying these systems, however, proposes series of challenges in both, computational and experimental fields due to the extreme length and time scales of the problems. The work by Zadin et al. (pp. 144–148) presents a multi‐scale and multiphysics study of such problem. Incorporation of the nanoscale size effects and fully coupled multi‐physics phenomena leads to continuum simulations capable of capturing important aspects of the nanoscale process while extending the simulated time scale to comparable level with experiments. The cover image contains an artistic view of multi‐scale simulations – the background represents an atomistic interpretation of the gold being homogenized into continuum approach. The foreground images show macroscopic time scale simulations of the nanoscale contact problem between the gold and tungsten nanoparticles under electrical and mechanical loading leading to temperature increase and shape deformation of the system. The temperature increase in the particles, combined with the mechanical stress causes significant plastic deformation near the contact area and proposes possible mechanisms for explaining the observed shape transformations of the nanoparticles.
- Subjects
SOLID state physics; NANOPARTICLES
- Publication
Physica Status Solidi (B), 2015, Vol 252, Issue 1, pn/a
- ISSN
0370-1972
- Publication type
Other
- DOI
10.1002/pssb.201570302