| About this Abstract |
| Meeting |
MS&T23: Materials Science & Technology
|
| Symposium
|
Controlled Synthesis, Processing, and Applications of Structural and Functional Nanomaterials
|
| Presentation Title |
Phase Formation and High Temperature Electrical Conductivity in Novel Polymer-Derived Silicon Oxycarbide – Ti3C2Tx MXene Nanocomposites |
| Author(s) |
Advaith V. Rau, Kathy Lu |
| On-Site Speaker (Planned) |
Advaith V. Rau |
| Abstract Scope |
Two-dimensional Ti3C2Tx (MXene) nanomaterials have gained popularity for their exceptional electrical conductivity as a potential material in electrodes and sensors. However, wider application in bulk composites is precluded by low exfoliated Ti3C2Tx yield and surface chemistry constraints. The ceramic nanosheets are attractive filler materials in polymer-derived ceramic (PDC) systems due to the inherent compatibility of the ceramic matrix and ceramic nanomaterial. Exfoliated Ti3C2Tx nanosheets were synthesized and incorporated into a preceramic polymer after surface functionalization with [3-(2-aminoethylamino)propyl]trimethoxysliane. Pyrolytic decomposition of the preceramic green bodies produced SiOC-Ti3C2Tx ceramic nanocomposite, and the effect of MXene content on phase formation and electrical conductivity was studied as a function of pyrolytic temperature. SiOC-¬Ti3C2Tx ceramic nanocomposites have potential in high temperature electrical and aerospace applications that leverage the structural and chemical stability of the ceramic constituents. The methodology for SiOC-Ti3C2Tx fabrication can serve as a template for development of novel 2D nanomaterial modified ceramic composites. |