About this Abstract |
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. |