About this Abstract |
| Meeting |
MS&T24: Materials Science & Technology
|
| Symposium
|
Advanced Manufacturing of High Temperature Ceramics and Composites: Processing, Characterization and Testing
|
| Presentation Title |
Optimizing Solids Loading for Aqueous Robocasting of Monolithic Silicon Carbide |
| Author(s) |
Jacob Paul Feldbauer, Corson L Cramer, Dustin Gilmer |
| On-Site Speaker (Planned) |
Jacob Paul Feldbauer |
| Abstract Scope |
Silicon carbide (SiC) is known for its exceptional mechanical and thermal stability. However, machining of SiC is difficult and net shaping is of high interest, so additive manufacturing (AM) is being developed to process SiC. Robocasting AM is a method where pastes, slurries, and colloidal inks are extruded from a small nozzle in specific locations layer by layer to form geometrically complex, sinterable components. The optimization of solids loading in the slurries is achieved by determining the stable pH of the slurry using Zeta potential testing. Rheological analysis is employed to evaluate the shear-thinning behavior and viscosity of the inks. Additionally, the impact of various lubricants and binders on the properties of SiC components is systematically analyzed. Samples are sintered to high density and mechanical properties are measured. This study comprehensively examines the influence of process parameters on the density, microstructure, and mechanical properties of the AM sintered SiC bodies. |