About this Abstract |
| Meeting |
MS&T24: Materials Science & Technology
|
| Symposium
|
Preceramic Polymers; Synthesis, Processing, Modeling, and Derived Ceramics
|
| Presentation Title |
Improving Mechanical Properties of Polymer-Derived Dense SiC Ceramics with the Integration of 2D MXene |
| Author(s) |
Wei Li, Mubina Shaik, Kathy Lu |
| On-Site Speaker (Planned) |
Wei Li |
| Abstract Scope |
This study focuses on mixing MXene with a SiC precursor (SMP10) followed by pyrolysis to produce bulk TiC/SiC composites. The mass loss and dimensional shrinkage during pyrolysis are significantly reduced by the addition of 2D MXene into the SMP10 precursor. The presence of MXene impacts the densification behavior and substantially increases the densification rate at low temperatures. Interestingly, the degradation temperature of MXene is hindered due to the encapsulation of the SMP10 precursor on the MXene surface, which serves as a protective layer. Additionally, the obtained bulk TiC/SiC composite exhibits enhanced high-temperature stability and mechanical properties due to the interlocking effect of the MXene layered structure. This work provides a conceptual approach to preparing MXene-derived TiC/Si-based ceramics using a polymer-derived ceramic route. |