About this Abstract |
Meeting |
2022 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2022)
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Symposium
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2022 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2022)
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Presentation Title |
Additive Manufacturing of Zirconium Carbide by Ceramic On-Demand Extrusion |
Author(s) |
Clare Sabata, Austin J. Martin, Gregory E. Hilmas, Jeremy L. Watts, Ming C. Leu, Tieshu Huang |
On-Site Speaker (Planned) |
Clare Sabata |
Abstract Scope |
Zirconium carbide (ZrC) is an ultra-high temperature ceramic that is of interest for applications in extreme environments due to its high melting point (>3000°C), high hardness (~25 GPa) and low density (6.73 g/cm3). Ceramic On-Demand Extrusion (CODE) is a direct-ink writing additive manufacturing process that can create large and complex geometries. In this work, the feasibility of the additive manufacturing (AM) of ZrC via CODE was investigated.
A highly loaded paste formulation was created using commercial ZrC powder. Paste rheology was optimized by altering the concentrations of ZrC, dispersant, and binder. ZrC specimens of various geometries were processed using CODE and then pressurelessly sintered to near full density. The CODE printing parameters, final print results, and sintering studies will be discussed. Archimedes’ density, scanning electron microscopy, thermal property testing, and mechanical property testing were performed to characterize the material data for the printed ZrC parts and will also be discussed. |
Proceedings Inclusion? |
Definite: Post-meeting proceedings |