About this Abstract |
Meeting |
2022 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2022)
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Symposium
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2022 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2022)
|
Presentation Title |
Laser Powder Bed Fusion Additive Manufacturing of Zirconium Carbide |
Author(s) |
Alexander E. Wilson-Heid, R. Joey Griffiths, Aiden A. Martin, Kiel S. Holliday, Jason R. Jeffries |
On-Site Speaker (Planned) |
Alexander E. Wilson-Heid |
Abstract Scope |
Laser powder bed fusion (LPBF) additive manufacturing (AM) can realize the extreme temperatures required for melting and solidification of ultra-high temperature ceramics, including zirconium carbide (ZrC). ZrC has a melting temperature above 3000 °C and a high hardness, making ZrC suitable for a broad range of high temperature environments. In this study, build process parameter combinations of laser power, scan speed, and beam size were selected based on single track melt pool characteristics, including dimensional uniformity. A custom LPBF machine was then used to determine hatch spacing and layer height parameters that resulted in fabricated cylinder samples with density >70% based on optical measurements. Generating complex structures using AM for high temperature applications while still maintaining chemical stability expands the application of ZrC particularly in next generation nuclear reactor designs. This work performed under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344. |
Proceedings Inclusion? |
Definite: Post-meeting proceedings |