About this Abstract |
| Meeting |
MS&T24: Materials Science & Technology
|
| Symposium
|
Additive Manufacturing of Ceramic-based Materials: Process Development, Materials, Process Optimization and Applications
|
| Presentation Title |
Laser-Directed Energy Deposition Additive Manufacturing of Lunar Highlands Simulant (LHS-1) Lunar Regolith Simulant for In Situ Resource Utilization |
| Author(s) |
Sizhe Xu, Marwan Haddad, Aslan Bafahm Alamdari, Sarah Bafahm Wolff |
| On-Site Speaker (Planned) |
Sizhe Xu |
| Abstract Scope |
This research investigates the potential of laser directed energy deposition (L-DED) additive manufacturing for processing lunar regolith simulant, crucial for extraterrestrial manufacturing. By exploring various parameters like ambient conditions, laser powers, and scanning speeds, the study aims to optimize printing settings. X-ray diffraction and microscopy analyze microstructural characteristics and phase evolution. The choice of substrate significantly affects printed clad adhesion, with alumina-silicate ceramic being optimal. Morphological analysis reveals porous, tube-like structures under different conditions, indicating a correlation with laser power and scanning speed. Scanning electron microscopy and energy dispersive spectroscopy identify crystalline phases formed under varying laser powers. Surface-resolved digital microscopy highlights structural details. The study concludes with optimal L-DED parameters (64 W laser power, 6 mm/s scanning speed) for producing desirable mullite microstructures, offering high temperature stability and mechanical strength, thus enhancing the potential for sustainable in-situ construction in lunar missions. |