Jul 21 – 25, 2019
Connecticut Convention Center, Level 6
US/Eastern timezone

M3Or3B-05: DC Performance Testing of MgB2 Samples using Cryocooler-Based Cooling

Jul 24, 2019, 3:00 PM
Level 6, Room 12-13

Level 6, Room 12-13

Contributed Oral Presentation M3Or3B - MgB2 and Fe-based Wires


Dr Jason Hartwig (NASA Glenn)


To enable turboelectric aircraft that utilize fully superconducting motors and generators, testing of high-current, low-AC-loss superconducting wires and coils must be performed. A preliminary investigation was conducted on the critical current capability of a magnesium diboride sample and on the complications that arise from testing the sample with a cryocooler. While a cryocooler provides the benefit of a wide and continuous operating temperature range, cooling a sample by conduction through solid media without a heat-exchange gas is difficult. This paper outlines the hardware and software used to conduct DC performance tests on magnesium diboride superconducting samples, along with several check-out tests and mitigation steps needed to produce quality superconducting data using a cryocooler rather than a cryogen.

Primary authors

Dr Jason Hartwig (NASA Glenn) Mr Christian Llanes (Embry Riddle University) Dr Gerald Brown (NASA Glenn Research Center) Dr Ben Choi (NASA Glenn Research Center) Mr Fred Vankeuls (Vantage Partners)

Presentation materials

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