About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
|
Symposium
|
Deformation Mechanisms, Microstructure Evolution, and Mechanical Properties of Nanoscale Materials
|
Presentation Title |
The Effect of Ion Irradiation on Strength of Ni Nanoparticles |
Author(s) |
Anuj Bisht, Yuanshen Qi, Eugen Rabkin |
On-Site Speaker (Planned) |
Eugen Rabkin |
Abstract Scope |
Recent studies indicate that the strength of faceted metal nanoparticles obtained by solid state dewetting is comparable to the theoretical strength of respective metals. The particles compressed with a flat punch exhibit purely elastic behavior up to very high values of strain approaching 10%, followed by a large displacement burst and a catastrophic plastic collapse. In this work we demonstrated that irradiating pristine Ni particles with Ga and Xe ions significantly reduces their strength, with Ga ions causing the most drastic strength drop. The displacement bursts in compressive load-displacement curves of Xe-irradiated Ni particles were much smaller than in the case of their pristine counterparts, while the Ga-irradiated particles demonstrated nearly continuous plastic deformation. We characterized the defects in the particles induced by irradiation and correlated their type with the mechanical properties of the particles. |
Proceedings Inclusion? |
Planned: |
Keywords |
Mechanical Properties, Copper / Nickel / Cobalt, Thin Films and Interfaces |