| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Nanostructured Materials in Extreme Environments II
|
| Presentation Title |
Molecular Dynamics Simulations of the Interaction of Energetic Atomic Oxygen with Carbon Nanotube Based Composites |
| Author(s) |
Fuyue Li, Chaitanya S. Deo |
| On-Site Speaker (Planned) |
Chaitanya S. Deo |
| Abstract Scope |
Carbon nanotube (CNT) - polymer composites are of interest in space applications because of their low weight and good electrical and thermomechanical properties. In long term low earth orbit environments, highly reactive atomic oxygen may initiate undesirable chemical and physical changes in polymeric materials. Detailed understanding of unit mechanisms involved in atomic oxygen (AO) interactions with CNT-polymer composites is sparse. A systematic approach is employed to study AO degradation effects on the structure and thermo-mechanical behavior of these composites using molecular dynamics simulations. After computing thermo-mechanical properties in pristine CNT-polymer composites as a function of CNT loading, AO impact is simulated and compared with the pristine structure. Preliminary results show that mass loss occurs and small volatile molecules escape form the surface. Overall this study proved valuable insight into the mechanism by which AO may affect the structure and properties of CNT-polymer composites. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Modeling and Simulation, Composites, |