Fabricating Zirconia Parts with Organic Support Material by the Ceramic On-Demand Extrusion Process

dc.creatorLi, Wenbin
dc.creatorGhazanfari, Amir
dc.creatorMcMillen, Devin
dc.creatorScherff, Andrew
dc.creatorLeu, Ming C.
dc.creatorHilmas, Gregory E.
dc.date.accessioned2021-11-02T19:08:42Z
dc.date.available2021-11-02T19:08:42Z
dc.date.issued2017
dc.description.abstractCeramic On-Demand Extrusion (CODE) is an extrusion-based additive manufacturing process recently developed for fabricating dense, functional ceramic components. This paper presents a further development of this process and focuses on fabricating 3 mol% yttria-stabilized zirconia (3YSZ) components that cannot be fabricated without using support structures. The 3YSZ paste is deposited through the main nozzle, and a polycaprolactone (PCL) pellet feedstock is melted and deposited through an auxiliary nozzle to build support structures. After a green part is printed and dried, the support structures are removed by heating the part to ~70 °C to melt the PCL. The part is then sintered at 1550 o C to achieve near theoretical density. The maximum angle of overhanging feature that can be fabricated without support was determined to be 60°. Sample parts were fabricated and evaluated to demonstrate the effectiveness of the PCL support material and CODE’s capability to fabricate geometrically complex parts.en_US
dc.description.departmentMechanical Engineeringen_US
dc.identifier.urihttps://hdl.handle.net/2152/89867
dc.language.isoengen_US
dc.publisherUniversity of Texas at Austinen_US
dc.relation.ispartof2017 International Solid Freeform Fabrication Symposiumen_US
dc.rights.restrictionOpenen_US
dc.subjectceramic on-demand extrusionen_US
dc.subjectzirconiaen_US
dc.subjectsupport structureen_US
dc.subjectCODEen_US
dc.titleFabricating Zirconia Parts with Organic Support Material by the Ceramic On-Demand Extrusion Processen_US
dc.typeConference paperen_US

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