About this Abstract |
Meeting |
2024 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2024)
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Symposium
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2024 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2024)
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Presentation Title |
Optimization of SiC Ink for Robocasting via Dual-Polyelectrolyte Ratio Method |
Author(s) |
Michael Adedamola Odunosho, James Smay |
On-Site Speaker (Planned) |
Michael Adedamola Odunosho |
Abstract Scope |
Robocasting is extensively being researched for fabrication of SiC components for a variety of applications. However, many of the previous works have only been able to print low-to-moderate volume solid loadings (𝜙=0.33-0.44) and with larger nozzle sizes, causing high shrinkage and poor surface finish of printed parts. While high-solid loadings would prevent excessive shrinkage, smaller nozzles would enable printing of intricate lattice structures and thin walls such as fins and microchannels. Therefore, optimizing SiC ink would be beneficial towards printing this type of structure. In this study, two approaches are explored for optimization of SiC ink. First, the dual-polyelectrolyte method which involves dispersant-to-flocculant ratio is used to optimize the ink. Second, the design of experiment is used to study the main effects of each of these factors on yield stress and shear modulus, and to identify the optimal combination of factors that maximizes the printability of SiC gel. |
Proceedings Inclusion? |
Definite: Post-meeting proceedings |