About this Abstract |
| Meeting |
MS&T25: Materials Science & Technology
|
| Symposium
|
High-Entropy Materials: Solid Solutions, Intermetallics, Ceramics, Functional Materials and Beyond VI
|
| Presentation Title |
Advanced Synthesis of Compositionally Complex Carbides Using Polymer-Derived Ceramics for Extreme Environmental Applications |
| Author(s) |
Dustin Gilmer, Erik Akbar, Jacob Fischer, Roo Walker |
| On-Site Speaker (Planned) |
Dustin Gilmer |
| Abstract Scope |
Compositionally complex ceramics (CCCs) are an emerging class of materials that consist of multiple ceramic species with a high degree of disorder at the nano/atomic level. Due to the highly distorted lattice, CCCs often exhibit superior physical and mechanical properties compared to their less-complex counterparts. CCC consisting of carbides, and/or borides/nitrides are the most desirable considering the high-temperature stability, hardness, oxidation resistance, and thermochemical stability of its monolithic “constituents.” However, it is extremely difficult to synthesize these refractory CCC. Polymer-derived ceramics (PDCs), which are obtained through the pyrolysis of polymer precursors, provide a promising route to synthesize CCCs with tailored nano/atomic order, given the intimate mixing of polymer precursors. This research aims to harness PDC techniques to synthesize CCCs Ultra-High Temperature Ceramics (UHTC) in the family of carbides, nitrides, and borides with tailored properties for extreme conditions. |