About this Abstract |
| Meeting |
MS&T25: Materials Science & Technology
|
| Symposium
|
Controlled Synthesis, Processing, and Applications of Structural and Functional Nanomaterials
|
| Presentation Title |
Mechanical Characterization of Polymer Derived Ti3C2 MXene-SiC Ceramic |
| Author(s) |
Mohammad Hassan Shirani Bidabadi, Kathy Lu, Wei Li |
| On-Site Speaker (Planned) |
Mohammad Hassan Shirani Bidabadi |
| Abstract Scope |
Two-dimensional (2D) nanomaterials MXenes have attracted considerable research interest as fillers in polymer-derived ceramics (PDC) due to their functional groups, which make them easy to disperse in polymer systems. In this study, Ti3C2Tx MXene (2, 5, and 10 wt.%) was introduced into a polycarbosilane (SMP-10) and pyrolysis at 1000 °C in an Ar atmosphere. Then, the ceramic powder was used to prepare SiC-X TiC (X=2, 5, and 10 wt.%) bulk material using the spark plasma sintering (SPS) technique at 2000 °C. The fabricated composite was characterized using Raman spectroscopy, X-ray diffraction (XRD), scanning electron microscope (SEM), X-ray photoelectron spectroscopy (XPS), and Transmission electron microscopy (TEM). The effect of Ti3C2Tx MXene on mechanical properties was investigated using the nanoindentation continuous stiffness measurement technique. The results showed improved mechanical properties with increasing MXene content with highest increase to an average 10 GPa hardness and 180 GPa Young’s modulus for 10 wt.% TiC-SiC. |