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cessful parts. Higher vacuum and care in the reuse of powder is
a critical concern because high oxygen or dense oxide content
produces columnar oxide architectures, which may significantly
affect both thermal and electrical conductivity.
For more information: Timothy J. Horn is a research scholar, Center
for Additive Manufacturing and Logistics, North Carolina State Uni-
versity, 111 Lampe Dr., 126 Daniels Hall, Raleigh, NC 27607,
919.961.6296, , .
Acknowledgments
This work was supported by DOE SBIR Grants DE-SC0000867
and DE-SC0000869. The authors would also like to thank Pietro
Musumeci, Renkai Li, Hos To, and James Rosenzweig for hosting and
conducting the RF tests of the photo-cathode at the Particle Beam
Physics Laboratory at UCLA.
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