About this Abstract |
Meeting |
MS&T21: Materials Science & Technology
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Symposium
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Preceramic Polymers; Synthesis, Processing, Modeling, and Derived Ceramics
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Presentation Title |
UV Curable Preceramic Polymers and their Application in Additive Manufacturing |
Author(s) |
Tobias Schaedler, Kayleigh Porter, Mark O'Masta, Ekaterina Stonkevitch, Zak Eckel, Phuong Bui |
On-Site Speaker (Planned) |
Tobias Schaedler |
Abstract Scope |
This talk explores the development of UV curable preceramic polymers for use with liquid-vat type 3D printing, such as stereolithography or digital light processing. We demonstrate that additions of UV functional groups to siloxanes and carbosilanes allow for additive manufacturing on commercial printers, after optimizing resin and printing parameters. We additionally show integration of fibers or particles within the resin will carry through pyrolysis into the final ceramic state. This creates a ceramic matrix composites from the resulting two-phase microstructure, offering several advantages over conventional ceramic printing feedstock based on organic acrylates with a high volume fraction of ceramic particles. The talk will further discuss how many of the same benefits and challenges present in traditional thermally-cured preceramic polymers are still present when additively manufactured and how the new manufacturing paradigm enables new ways to address the challenges and enables access to new applications from the increased design freedom. |