| About this Abstract |
| Meeting |
2021 TMS Annual Meeting & Exhibition
|
| Symposium
|
Powder Materials for Energy Applications
|
| Presentation Title |
Structural Evolution and Electrical Conductivity of Ti3C2-SiOC Systems |
| Author(s) |
Kathy Lu, Sanjay Kumar |
| On-Site Speaker (Planned) |
Sanjay Kumar |
| Abstract Scope |
In this study, Ti3C2 MXene was exfoliated and surface functionalized before being introduced into polysiloxane (PSO) for cross-linking. The cross-linked samples were pyrolyzed in an Ar atmosphere. The phase characteristics and microstructures of exfoliated Ti3C2 MXene were examined using X-ray diffraction and electron microscopy while the surface functionalization was analysed using Raman spectroscopy. X-ray diffraction and thermogravimetric analysis were also used to understand the phase and microstructural evolution. Electrical conductivity of the Ti3C2-SiOC systems was measured up to 8000C in Ar atmosphere. The high electrical conductivity is attributed to the presence of graphitic carbon and exfoliated Ti3C2 in the SiOC matrix. The electrical conductivity values and compositions were used to model the electrical conductivity pathways. Simulated results revealed that the electrical conductivity followed the percolation model. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
High-Temperature Materials, Composites, Process Technology |