| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advances and Discoveries in Non-equilibrium Driven Nanomaterials and Thin Films
|
| Presentation Title |
Enthalpy-Driven Self-Healing in Thin Metallic Films on Flexible Substrates |
| Author(s) |
Claus O.W. Trost, Alice Lassnig, Patrice Kreiml, Christian Mitterer, Megan J. Cordill |
| On-Site Speaker (Planned) |
Claus O.W. Trost |
| Abstract Scope |
Self-healing microelectronics are needed for costly applications with limited or no repair access, such as space exploration. While advanced self-healing mechanisms for polymers are numerous, practical ways for self-healing in metal films have yet to be found. A concept for an intrinsic autonomous self-healing metallic film system was developed, allowing the healing of cracks in metallic films on flexible substrates. The concept relies on stabilising metastable thin films with high mixing enthalpy. The phase-separating tendency of the binary alloy is exploited to heal cracks. This allows the films to possess self-healing capabilities triggered by cracking at temperatures not detrimental to flexible microelectronics. The effect will be shown on metastable binary alloy thin films, stabilised via a segregation barrier. The system exhibits spontaneous particle formation. This property was controlled and directed to heal cracks and partly restore the electro-mechanical properties. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Thin Films and Interfaces, Sustainability, Nanotechnology |