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Project data
Authors Joshua M. Pearce
Completed 2021
Instance of 3D Printing
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Great advances have been made in various 3D printing methods for ceramics. Fabrication of Si-based ceramics using polymer-derived ceramics (PDCs) is gaining popularity. Using this route, preceramic polymers can be shaped in the polymer state and then pyrolyzed to produce different types of ceramics. Cellular ceramics can be manufactured using this technique. Herein, the novel fabrication of cellular ceramics with a two-step process using PDCs is reported. First cellular structures are 3D printed with fused filament fabrication (FFF) using thermoplastic polyurethane and impregnated with preceramic polymer polysilazane. Second, pyrolysis of the impregnated structure produces a self-similar ceramic cellular structure. The impact of 1) catalysts, 2) curing environment, and 3) pyrolysis sequence optimization to form cellular ceramics with fully dense SiOC(N) struts are systemically evaluated. The resultant custom ceramic components can tolerate operating temperatures of 1500 °C and can be manufactured for less than 5% of the cost of competing methods. The ceramic material is shown to be biocompatible and promotes fast cell adhesion. Finally, early-stage cell activation on the SiOC(N) structure is shown to be tunable by adjusting the porosity with this 3D printing to mimic the bone tissue geometry for bone regeneration.

Source

  • Apoorv Kulkarni, Joshua M. Pearce, Yuejiao Yang, Antonella Motta and Gian Domenico Sorarù. Fully dense SiOC(N) cellular structures by integrating FFF 3-D printing with polymer derived ceramics. Advanced Engineering Materials 2021, 2100535. https://doi.org/10.1002/adem.202100535 OA, academia

Keywords[edit | edit source]

 polymer derived ceramics; fused filament fabrication; material extrusion; 3D printing; open-source platform,Additive manufacturing, Fused filament fabrication, Open source 3D printing, 3D printing, open hardware, open source, RepRap, Polymer-derived ceramics, Polysilazanes, preceramic polymers, Thermoplastic polyurethanes

See also[edit | edit source]

In the News[edit | edit source]

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Page data
Type Project
Keywords additive manufacturing, fused filament fabrication, open source 3d printing, 3d printing, open hardware, open source, reprap, polymer-derived ceramics, polysilazanes, preceramic polymers, thermoplastic polyurethanes
SDG Sustainable Development Goals SDG09 Industry innovation and infrastructure, SDG10 Reduced inequalities, SDG12 Responsible consumption and production
Authors Joshua M. Pearce
Published 2021
License CC-BY-SA-4.0
Affiliations Free Appropriate Sustainable Technology, Western
Language English (en)
Impact Number of views to this page and its redirects. Updated once a month. Views by admins and bots are not counted. Multiple views during the same session are counted as one. 144
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