| About this Abstract |
| Meeting |
MS&T24: Materials Science & Technology
|
| Symposium
|
The American Ceramic Society Journal Awards Symposium
|
| Presentation Title |
3D-Printed Alumina-Based Ceramics with Spatially Resolved Porosity |
| Author(s) |
Serkan Nohut, Josef Schlacher, Irina Kraleva, Martin Schwentenwein, Raul Bermejo, Shawn M. Allan, Ryan Fordham |
| On-Site Speaker (Planned) |
Ryan Fordham |
| Abstract Scope |
The interest on porous ceramics has increased in the last years with the developments in additive manufacturing methods, enabling design of components with complex geometries for membranes, filters, catalytic converters, or biostructures. In this study, porous alumina samples were produced by using different concentrations of poly(methyl methacrylate) (PMMA) as pore-forming agent in a photocurable slurry via vat photopolymerization (VPP). The effect of layer thickness, PMMA concentration, PMMA particle size, and sintering temperature on the mechanical properties, homogeneity, and microstructural features of the samples was investigated.
It is shown that the mechanical properties of 3D-printed porous alumina are comparable with those fabricated by conventional processes. The feasibility of VPP for fabricating novel parts with more complex porosity regions is explored by printing multi-material samples and porosity-graded architectures. |