About this Abstract |
| Meeting |
MS&T25: Materials Science & Technology
|
| Symposium
|
Controlled Synthesis, Processing, and Applications of Structural and Functional Nanomaterials
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| Presentation Title |
Design of nanolayered carbides through assembly & fusion of 2D building blocks |
| Author(s) |
Brian Wyatt, Kat Nykiel, Paweł P Michałowski, Alejandro Strachan, Babak Anasori |
| On-Site Speaker (Planned) |
Brian Wyatt |
| Abstract Scope |
The design and stable synthesis of nanolayered ceramics with atomic-scale precision is a major challenge in materials science. For example, a class of nanolayered zeta phases (V4C3-y, Nb4C3-y, and Ta4C3-y) has unique thermomechanical properties that make them particularly suited for extreme conditions, but the need for intensive processing provides a need for research to move beyond traditional solid-state chemistry methods. In this work, we show that 2D transition metal carbides, known as MXenes, can serve as ~1-nanometer-thin building blocks that can be fused to yield nanolayered ceramics. Further, using computational methods to survey the large compositional space of assembled MXenes, we identify 67 new layered carbide and nitride materials with comparable or better thermal stability than known layered ceramics. Our findings suggest that MXenes can be used as a homologous series of nano building blocks to precisely build nanolayered ceramics for a wide range future applications in energy or extremes. |