About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
|
Symposium
|
Deformation Mechanisms, Microstructure Evolution, and Mechanical Properties of Nanoscale Materials
|
Presentation Title |
Observing and Quantifying Deformation Mechanisms in Metal Nanoparticles |
Author(s) |
Ruikang Ding, Soodabeh Azadehranjbar, Ingrid M. Padilla-Espinosa, Andrew J. Baker, Muztoba Rabbani, Ashlie Martini, Tevis D. B. Jacobs |
On-Site Speaker (Planned) |
Ruikang Ding |
Abstract Scope |
Small metal nanoparticles have important industrial applications due to their unique size-dependent properties, such as high reactivity and unique photoelectromagnetic properties. However, their performance and reliability depend on their mechanical integrity. Here we investigated the fundamental mechanisms governing deformation of platinum particles with single-digit-nanometer diameters. Specifically, we performed in situ compression testing inside of a transmission electron microscope. The loading force is measured with nanonewton-scale resolution. The nanoparticle’s shape, structure, size, and deformation are analyzed using real-time high–resolution video. The results reveal the competitive and cooperative interactions between defect-mediated and diffusion-mediated deformation mechanisms. |
Proceedings Inclusion? |
Planned: |
Keywords |
Characterization, Mechanical Properties, Nanotechnology |