| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advances in Ceramic Materials and Processing
|
| Presentation Title |
MXene Derived Carbides as Templating Materials for ZrB2-based Ultra-high Temperature Ceramics (UHTCs) |
| Author(s) |
Kartik Nemani, Nicola Gilli, Ankit Kumar, Nikhilesh Chawla, Laura Silvestroni, Babak Anasori |
| On-Site Speaker (Planned) |
Babak Anasori |
| Abstract Scope |
Ti3C2Tx MXene is a two-dimensional (2D) refractory carbide which has high solution processability, high aspect ratios, and exhibits one of the highest stiffness (~330 GPa) among solution-processable 2D materials. We have investigated a one-pot, surfactant-free, aqueous mixing method to develop homogeneous ZrB2-Ti3C2 MXene green bodies. We present the phase transformation of Ti3C2 MXene to TiCy at the grain boundaries upon sintering, the interface interactions between the ZrB2-TiCy grains and their densification mechanism. A nominal relative density of ~96% is achieved when 0.5 wt.% Ti3C2 MXene is added to ZrB2 and spark plasma sintered at 1900 ºC with 50 MPa pressure in inert atmospheres. The microstructure evolution, stability, and their effect on micromechanical properties of the resulting UHTCs will be presented and discussed. This study lays the groundwork for 2D MXenes to be used as template precursors for 2D carbides and their implementation as compatible materials for high-temperature applications. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Ceramics, High-Temperature Materials, Nanotechnology |