| About this Abstract |
| Meeting |
MS&T22: Materials Science & Technology
|
| Symposium
|
Additive Manufacturing of Ceramic-based Materials: Process Development, Materials, Process Optimization and Applications
|
| Presentation Title |
A Study of Lithography-Based Additive Manufacturing of Ceria Ceramics |
| Author(s) |
Ryan Fordham, Nicholas Voellm, Shawn Allan, Nicole Ross, S.K. Sundaram |
| On-Site Speaker (Planned) |
Ryan Fordham |
| Abstract Scope |
Cerium oxide (ceria) is well-known for applications in various fields, including nuclear applications, abrasives, electro ceramics, catalysts, and medicine, and understanding the working mechanisms of lithography-based manufacturing of ceria will help advance these fields. This investigation focused on the effects of modulating process parameters for additive manufacturing of ceria with a CeraFab 8500, 3D printer. A parametric study was designed to map the effects of process parameter alterations of 3D printed ceria parts. Characteristics such as grain size, porosity, stoichiometry, and density were used to compare printed samples with traditionally processed ceria. Ceria powder with a particle size of 0.5 μm and slurry solid loading of 47.9 vol% produced high-density ceramics with complex structures and geometries when sintered to 1350°C. A maximum sintered density of 98.3% of theoretical was achieved with no apparent porosity and x-ray photoelectron spectroscopy was used to find oxidation state variation between the printed samples. |