| About this Abstract |
| Meeting |
MS&T22: Materials Science & Technology
|
| Symposium
|
Engineering Ceramics: Microstructure-Property-Performance Relations and Applications
|
| Presentation Title |
Tunable Self-Assembly of 2D Carbide MXenes with Bulk Ultra High Temperature Ceramics |
| Author(s) |
Nithin Balachandran, Yooran IM, Srinivasa Kartik Nemani, Ravi Kumar , Babak Anasori |
| On-Site Speaker (Planned) |
Nithin Balachandran |
| Abstract Scope |
2D transition metal carbide MXenes are recently being explored for their high-temperature stability up to 2000 ºC under inert atmospheres. High-temperature studies on Ti3C2Tx MXene have shown phase transformation to the cubic TiCy. In this study, we explore the tailorable preparation of green bodies of nanometer-thick Ti3C2Tx MXene with bulk ultra-high-temperature ceramic (UHTC) materials such as zirconium carbide (ZrC) and zirconium diboride (ZrB2) via electrostatic self-assembly. Because of the 2D sheet morphology of MXenes and their negative zeta potential (~ -34 mV for Ti3C2Tx in pH = 4), homogeneous self-assembly occurs upon mixing UHTC particles with MXenes. As a result of this self-assembly, the UHTC particles are wrapped by MXene sheets. This method allows us to explore a surfactant-free, water-based, one-pot green body preparation of UHTC composites. The fundamental study of the self-assembly mechanism of Ti3C2Tx MXene with bulk ceramics can pave new routes for processing UHTC composite green bodies. |