About this Abstract |
| Meeting |
MS&T26: Materials Science & Technology
|
| Symposium
|
Additive Manufacturing: Development of Powders
|
| Presentation Title |
Atomic Layer Deposition for Aluminum and Titanium Feedstock Modification for AM Applications |
| Author(s) |
Chris Gump, Alex Koegel, Jaime DuMont, Guillermo Rojas, Caitlin Czernek |
| On-Site Speaker (Planned) |
Chris Gump |
| Abstract Scope |
Atomic layer deposition is a thin film coating technique capable of depositing precise, nanometer-scale films onto powders using self-limiting surface reactions. Forge Nano has previously shown that Al2O3 films on Ti64 improved substrate flowability, oxidation resistance, as well as improving the physical properties of parts printed by laser powder bed fusion. In this work, we have broadened the material set of ALD-coated materials to include aluminum feedstock powders coated with TiO2, and performed further testing on Al2O3-coated Ti64. Powders were coated at the 100 g and 10 kg scale. Images taken using FIB/STEM cross-sectioning demonstrated the density and uniformity of the films. The goal is to print the powders using both laser powder bed fusion and cold spray processes. Potential scale-up routes for 100-400 kg batches will also be discussed. |