About this Abstract |
| Meeting |
MS&T24: 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 |
Formulation of Preceramic Polymers for Photocuring and 3D Printing of Polymer-Derived Ceramic Lattices |
| Author(s) |
Michael Jakubinek, Thomas Lacelle, Hamidreza Yazdani Sarvestani, Ahmad Sohrabi, Apoorv Kulkarni, Hanie Kazari, Yadienka Martinez-Rubi, Hugo Lavoie, Amelie Robitaille, Behnam Ashrafi |
| On-Site Speaker (Planned) |
Michael Jakubinek |
| Abstract Scope |
Ceramics are known for high compressive strength and high thermal and chemical stability, which makes them uniquely useful. However, their low damage tolerance and brittle failure is a limiting factor. The brittleness of monolithic ceramic can be reduced, and toughness increased, through the use of architecture as inspired and observed in nature. Polymer-derived ceramics (PDCs) address the shaping constraints in traditional ceramics processing, enabling near-net-shape manufacturing of complex geometries using preceramic polymers (PCPs) and polymer processing methods. Here we describe the formulation of commercial PCPs to produce UV-curable preceramics, which are patterned by 3D printing and pyrolyzed at high temperature. Properties and compositions are tailored through resin formulation and filler particles. The combination of PCPs with polymer additive manufacturing, enables the definition of complex, custom ceramic shapes, as illustrated here in compression testing of triply periodic minimal surface lattices, offering a promising route to produce tough, strong, lightweight ceramic components. |