About this Abstract |
Meeting |
2024 TMS Annual Meeting & Exhibition
|
Symposium
|
Mechanical Behavior at the Nanoscale VII
|
Presentation Title |
Intrinsic Toughening of a Two-Dimensional Material via In-Plane Nanocomposite |
Author(s) |
Bongki Shin, Bo Ni, Lucas Sassi, Douglas Steinbach, Zhenze Yang, Chee Tat Toh, Barbaros Oezyilmaz, Markus J. Buehler, Yimo Han, Jun Lou |
On-Site Speaker (Planned) |
Bongki Shin |
Abstract Scope |
Two-dimensional materials possess remarkable properties but suffer from inherent brittleness due to their thin nature. This limits their mechanical reliability and application potential. The fabrication of monolayer amorphous carbon (MAC) provides an interesting platform for studying how regions of amorphous and crystalline carbon affect mechanical properties compared to graphene. This study systematically observes the fracture behavior of MAC and proposes in-plane nanocomposites as a novel approach for intrinsic toughening. Our in-situ SEM tensile tests demonstrate that the proposed nanocomposite exhibits exceptional elongation, surpassing other two-dimensional materials, with approximately a seven-fold increase in the energy release rate compared to graphene. Molecular dynamics simulations support these findings, illustrating crack propagation through the amorphous matrix. This research introduces an innovative approach to enhance the mechanical integrity of two-dimensional materials. The proposed in-plane nanocomposite offers significant potential for improving toughness, thus opening doors for the utilization of nanomaterials in a wider range of applications. |
Proceedings Inclusion? |
Planned: |
Keywords |
Mechanical Properties, Nanotechnology, Modeling and Simulation |