About this Abstract |
Meeting |
2022 TMS Annual Meeting & Exhibition
|
Symposium
|
Self-organizing Nano-architectured Materials
|
Presentation Title |
Architected Nanocomposites with Exceptional Energy Dissipation |
Author(s) |
Lorenzo Valdevit, Jens Bauer, Marti Sala Casanovas |
On-Site Speaker (Planned) |
Lorenzo Valdevit |
Abstract Scope |
The concept of combining a metallic and a ceramic phase in a composite material has been employed for decades as a strategy to achieve excellent combinations of high temperature resistance, wear resistance, strength, ductility and energy absorption. Conventional manufacturing approaches rely on dispersing a discontinuous ceramic reinforcement (particles or fibers) in a continuous metallic matrix. While this strategy may be effective under specific service conditions, numerous studies have shown that interpenetrating phase composites (IPCs) with optimized phase topologies can provide far superior combinations of properties. Yet fabricating metal-ceramic IPCs with micro-nanoscale architectures remains a substantial challenge. Here we present a nano-architected IPC consisting of a glassy carbon architected shell interdispersed with an electrodeposited Nickel matrix. The nanoscale ceramic shell approaches its theoretical strength, while the metallic phase provides ductility. The result is a material that can sustain stress plateaus of 2GPa over strains in excess of 60%. |
Proceedings Inclusion? |
Undecided |
Keywords |
Composites, Additive Manufacturing, Nanotechnology |