| About this Abstract |
| Meeting |
MS&T22: Materials Science & Technology
|
| Symposium
|
Controlled Synthesis, Processing, and Applications of Structural and Functional Nanomaterials
|
| Presentation Title |
Synthesis of Nanolamellar Ultra-high Temperature Carbides by High-temperature Phase Transformation of 2D MXenes |
| Author(s) |
Babak Anasori |
| On-Site Speaker (Planned) |
Babak Anasori |
| Abstract Scope |
Two-dimensional transition metal carbides, nitrides, and carbonitrides, known as MXenes, have a wide array of impressive material properties due to their inherent transition metal carbide and nitride core with abundant surface functionalities. Few studies take advantage of the inherent stability of MXenes’ interior transition metal carbide core. While MXenes can be oxidized in air, they can be transformed to ultra-high temperature carbides with controlled morphology and crystal orientation under a controlled environment. In this talk, we present the high-temperature behavior of Ti3C2Tx from room temperature to 2000 °C in an inert atmosphere. We discuss how the starting morphology of MXene controls the resulting ultra-high temperature carbide ceramics. For example, nanolamellar Ti2C and highly textured TiCy carbides are formed by annealing Ti3C2Tx MXene single-flake films. These findings identify a unique capability of MXenes for future studies to form highly stable MXene-derived carbides and nitrides with controlled morphology for extreme environment applications. |