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Meeting MS&T21: Materials Science & Technology
Symposium Additive Manufacturing of High and Ultra-High Temperature Ceramics and Composites: Processing, Characterization and Testing
Presentation Title Additive Manufacturing of Aqueous Based Silicon Nitride Suspensions via Direct Writing
Author(s) William James Costakis, Connor Wyckoff, Lisa Rueschhoff
On-Site Speaker (Planned) William James Costakis
Abstract Scope Direct ink writing is an additive manufacturing technique that has the ability to yield novel architected cellular structures that demonstrate high specific mechanical properties and increased toughness over their bulk counterparts. The cost-effective nature of this process and control of material deposition allows for the production of tunable ceramic systems that can exhibit a wide range of properties making them ideal for lightweight structural and thermal management components. Here, we present the work of DIW of silicon nitride using aqueous-based slurry inks. The inks were developed and tailored based on previous suspensions developed for room temperature injection molding. Characterization of the ink rheological properties and the final sintered mechanical properties of printed samples will be presented.
Proceedings Inclusion? Planned: Other (journal publication, etc.; describe below)

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

Additive Manufacturing of Aqueous Based Silicon Nitride Suspensions via Direct Writing
Additive Manufacturing of Corrosion Resistant UHTC Materials for Chloride Salt-to-sCO2 Brayton Cycle Heat Exchangers
Additive Manufacturing of High-performance Advanced Ceramics by the Ceramic On-demand Extrusion (CODE) Process
Additive Manufacturing of Silicon Nitride Using a Slurry Approach
Additive Manufacturing of ZrB2–ZrSi2 Composites Using an Electron Beam Melting (EBM) Process
Additive Manufacturing Of ZrB2-SiC Heat Exchanger Geometries by Ceramic on Demand Extrusion
Additive Slurry Drying as a Novel Method for Realizing Large Ceramic Components Using AM
Advanced Polymer-derived (Ultra)-high-temperature Resistant Ceramics and Ceramic Nanocomposites for Additive Manufacturing
AM of UHTCs at LLNL
Binder Jet Additive Manufacturing of Novel Design, High Temperature, Ceramic Heat Exchangers
Ceramic On-demand Extrusion (CODE) of Functionally Graded ZrB2-Mo
Deposition of UHTC Coatings on Refractory Substrates by Directed Energy Methods
High Temperature Properties of Polymer-derived Ceramic Matrix Composites Fabricated via Additive Manufacturing
Innovative Route for the 3D Printing of Hybrid Silicon Carbide/Carbon Fiber Nanocomposites
Investigation of Oxidation Behavior of ZrB2-SiC Composites under Different Partial Pressures of Oxygen
Molten Chloride Salt Corrosion Testing of Ultra High Temperature Ceramics for High Temperature Heat Exchangers Fabricated by Additive Manufacturing Methods
Pathways to Additively Manufacture Ultra-high Temperature Ceramic Composites
Process Development and Optimization for The Laser Powder Bed Fusion of WC-Ni Cermet Composites
Strategies for Printing Continuous Fibers and Post-processing for Ceramic Matrix Composites (CMCs)

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