Characterization of Cryogenic Material Properties of 3-D-Printed Superconducting Niobium Using a 3-D Lumped Element Microwave Cavity

  title={Characterization of Cryogenic Material Properties of 3-D-Printed Superconducting Niobium Using a 3-D Lumped Element Microwave Cavity},
  author={Ben T. Mcallister and Jeremy Bourhill and Wing Him J. Ma and Timothy Barry Sercombe and Maxim Goryachev and Michael E. Tobar},
  journal={IEEE Transactions on Instrumentation and Measurement},
We present an experimental characterization of the electrical properties of 3-D-printed niobium. The study was performed by inserting a 3-D-printed Nb post inside an aluminum cylindrical cavity, forming a 3-D lumped element reentrant microwave cavity resonator. The resonator was cooled to temperatures below the critical temperature of niobium (9.25 K) and then aluminum (1.2 K) while measuring the quality factors of the electromagnetic resonances. This was then compared with finite element… 
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