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Meeting 2022 TMS Annual Meeting & Exhibition
Symposium Additive Manufacturing of Refractory Metallic Materials
Presentation Title LPBF Printing of Nb for the Production of 3D Resonance Cavities
Author(s) Antonio J. Ramirez, Ricardo S Namur, Graham Clark, David Doll, Michael Sumption
On-Site Speaker (Planned) Antonio J. Ramirez
Abstract Scope We undertook to use LPBF 3-D printing of pure Niobium to produce 3-D resonators. The use of 3D printing enabled quick prototyping, design flexibility, and scalability, both in terms of size and in terms of multiple unit arrays. An LPBF Mlab system by Concept Laser was used to print a cavity design for 6 GHz with a high q-factor. Printing parameters, build plate, supports, and part orientation were optimized, with 100 W at 1200 mm/s, providing the best part density. The cavities were successfully produced along with witness samples for metallurgical analysis. Electrolytic polishing of the printed parts was explored and all results on printing, characterization, and polishing will be presented.
Proceedings Inclusion? Planned:
Keywords Additive Manufacturing, Characterization, High-Temperature Materials


Additive Manufacture of Refractory Metals for Aerospace Applications
Additive Manufacturing of Refractory High Entropy Alloys
Case Studies on Additive Manufacturing of Refractory Materials
Design and Development of 3D Printable Nb-based Alloys for High Temperature Applications
Effect of Minor Titanium and Aluminum Addition on Ductility of Refractory High Entropy Alloy
Electron Beam Melting Additive Manufacturing of Pure Molybdenum
Enhancement of the Thermal Conductivity of Inconel 718 with the Addition of Tungsten
Fabrication of Pure Tungsten Using Electron Beam Powder Bed Fusion
Laser Assisted Cold Spray Deposition for Niobium and Tantalum Materials
Laser Beam Directed Energy Deposition Process Optimization for Refractory High Entropy Alloys
Laser Powder-bed-fusion of Pure Tungsten for Fusion Energy Applications
LPBF Printing of Nb for the Production of 3D Resonance Cavities
Mechanical Properties and Microstructural Characteristics of Additively Manufactured C103 Niobium Alloy
Refractory Development Framework Using Computational Modeling
Refractory Metals – Some Historical Observations
Study of Melt-pool Geometry and Microstructure in Pure W by Powder-feed Directed Energy Deposition
Thermal-chemical-fluid Flow of Dissimilar Species Mixing between Titanium and Refractory Metals
Union of Mo and Cr Alloys into a Single Multi-materials Part Using Laser-powder Directed Energy Deposition

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