| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advances in Ceramic Materials and Processing
|
| Presentation Title |
MXenes as 2D Nanoceramic Additives in Silicon Carbide Matrices for High-Temperature Applications |
| Author(s) |
Nithin Chandran, S. Kartik Nemani, Brian C. Wyatt, Babak Anasori |
| On-Site Speaker (Planned) |
Babak Anasori |
| Abstract Scope |
Two-dimensional (2D) transition metal carbides, MXenes, are increasingly explored as additives in ceramic-based materials due to their high-temperature phase stability and high mechanical stiffness (483 GPa for titanium carbide MXene, Ti3C2Tx). The layered morphology and colloidal stability, characterized by a negative zeta potential (-35 to -50 mV), ensure uniform dispersion in ceramic matrices without the use of additional surfactants. MXenes form stable ultra-high-temperature nanolamellar carbides in inert environments at high temperatures, > 1000 ºC. In this study, we present the electrostatic self-assembly of nanometer-thin 2D flakes of Ti3C2Tx MXene with silicon carbide (SiC) and pressure-assisted pulsed current sintering at temperatures ranging from 800 to 1950 °C to investigate the phase transformation of MXene within the SiC matrix. We present the phase stability and high-temperature interactions of MXenes within a SiC matrix, highlighting their potential in additive manufacturing as 2D nanoceramics for SiC-based materials. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Ceramics, Additive Manufacturing, High-Temperature Materials |