| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Materials Science for Global Development -- Health, Energy, and Environment: An SMD Symposium in Honor of Wole Soboyejo
|
| Presentation Title |
Fracture at the Two-dimensional Limit |
| Author(s) |
Jun Lou |
| On-Site Speaker (Planned) |
Jun Lou |
| Abstract Scope |
Understanding mechanical properties of 2D materials is critically important for their reliable integration into future electronic, composite and energy storage applications. In this talk, we will report our efforts to study fracture behaviors of 2D materials. Our combined experiment and modeling efforts verify the applicability of the classic Griffith theory of brittle fracture to graphene. Strategies on how to improve the fracture resistance in graphene, and the implications of the effects of defects on mechanical properties of other 2D atomic layers will be discussed. More interestingly, stable crack propagation in monolayer 2D h-BN is observed and the corresponding crack resistance curve is obtained for the first time in 2D crystals. Next, we will also review some of our more recent efforts in evaluating the mechanical properties of 2D covalent organic frameworks (COFs). Finally, challenges and opportunities for fracture in 2D materials will be briefly discussed. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Mechanical Properties, Nanotechnology, Thin Films and Interfaces |