About this Abstract |
| Meeting |
MS&T24: Materials Science & Technology
|
| Symposium
|
Additive Manufacturing: Interactions between Energy and Materials
|
| Presentation Title |
Three-Dimensionally (3D) Controlled Aerosol Deposition of SOFC Electrolytes and Electrodes with Quantitative Defect Characterization |
| Author(s) |
Davis Warmuth, Joshua Tenney, Evan Helgeson, Katarzyna Sabolsky, Edward M. Sabolsky, Harry Abernathy |
| On-Site Speaker (Planned) |
Davis Warmuth |
| Abstract Scope |
The aerosol deposition additive manufacturing method allows for the printing of solid oxide fuel cell (SOFC) components with resolutions of <20 μm. Half-and full fuel cells containing differing porosity architectures were manufactured and their electrical performances were analyzed via electrochemical impedance spectroscopy (EIS). Scandia stabilized zirconia (SCSZ) was deposited onto tape casted anode support substrate made of nickel oxide and yttria-stabilized zirconia (NiO/YSZ) utilizing different printing paths, layer spacing, suspension solids-loading and dispersion characteristics. Samples were characterized post-sintering via Scanning Electron Microscopy (SEM) to evaluate anode and electrolyte layer dimensions and deformation/defects and make correlations based on deposition parameters. 3D depth map reconstructions of samples were created utilizing a high-resolution optical microscope to create profiles to access camber data. The incorporation of a fine-resolution nozzle combined with reduced amounts of ceramic powder in suspension was also investigated to reduce deposition width and drying time. |