| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Mechanical Behavior at the Nanoscale V
|
| Presentation Title |
Failure Mechanisms of Core-shell Nanostructures |
| Author(s) |
Raghuram R. Santhapuram, Arun Nair |
| On-Site Speaker (Planned) |
Raghuram R. Santhapuram |
| Abstract Scope |
Engineering a nanostructure to enhance the mechanical and physical properties can be achieved by either changing the material composition or by varying the geometry of the nanostructure. Core shell nanostructures (CSN) is an example where the geometry and material composition play an important role in improving the mechanical properties. In this study, we use molecular dynamics method to understand the mechanical response of the CSN’s with different metallic core materials and an amorphous shell under nanoindentation. The use of different core materials with different stacking fault energies and an amorphous shell will help in selecting appropriate materials for the CSNs for specific applications. Preliminary results with an aluminum core and an amorphous silicon shell have shown full recovery from plastic deformation under nanoindenation. We plan to discuss the ratio between core radii to shell thickness that will generate a deformation resistant CSN. |
| Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |