About this Abstract |
| Meeting |
MS&T26: Materials Science & Technology
|
| Symposium
|
Molecular Approaches to Ceramics; Synthesis, Processing, Modeling, and Derived Ceramics
|
| Presentation Title |
Additive Manufacturing of Variable-Composition and Difficult-to-Print Ceramics Based on Preceramic Polymers |
| Author(s) |
Apoorv Kulkarni, Thomas Lacelle, Hamidreza Yazdani Sarvestani, Chakavak Nojavan, Yadienka Martinez-Rubi, Amelie Robitaille, Behnam Ashrafi, Michael Jakubinek |
| On-Site Speaker (Planned) |
Michael Jakubinek |
| Abstract Scope |
Preceramic polymers enable both the use of polymer processing and shaping methods, and molecular-level control over the composition of the resulting polymer-derived ceramics (PDCs). While slurry-based 3D printing methods – using high-resolution printing approaches based on photopolymerization with ceramic particle suspensions in a sacrificial resin binder – are highly effective for ceramics such as alumina, a PDC approach can be advantageous for compositional flexibility, lower processing temperature, and for dark ceramics, which are challenging to produce by such methods. Here we show high-resolution 3D printing of preceramic polymers using digital light processing to achieve ceramic structures with complex gyroid geometries. A range of compositions will be discussed, including silicon-based, non-oxide (low oxygen content) ceramics. The structures exhibit fine features, low porosity, high temperature stability and good performance under compression, demonstrating the potential of the approach to target a broad range of difficult-to-print ceramic compositions. |