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Interaction of Ferromagnetic and Superconducting Permanent Magnets: Superconducting Levitation

Event Details

Event Dates: 

Wednesday, October 21, 2015 - 5:30pm

Seminar Location: 

  • JILA Auditorium

Speaker Name(s): 

Ludwig Schultz

Speaker Affiliation(s): 

Leibniz Institute of Solid State and Materials Research (IFW)
Seminar Type/Subject

Event Details & Abstract: 

Urban transportation and logistics with superconducting magnetic bearings that employ bulk, hightemperature superconductors will soon be a reality. Superconducting magnetic levitation is passively stable without any electronic control, supporting a vehicle at high speeds. These are perfect conditions for a rail-bound, individual transport with cabins for 4 to 5 passengers. They will levitate noise-free over a rare-earth permanent magnet track, saving energy and travel time. The world’s largest research and test facility for transport systems using bulk high-temperature superconducting material in the levitation and guidance system, in combination with a permanent magnet track, was put into operation in Dresden. A vehicle for 2 passengers, equipped with linear drive propulsion, a noncontact energy supply, a second braking system, and various test and measurement systems is running on an 80 m oval track. I will describe the principle of superconducting levitation by flux pinning in high-temperature superconductors. I will give an overview of the SupraTrans II facility, and future directions of superconductivity-based magnetic levitation for automation, transportation, and medical treatment under enhanced gravity. Also the Lexus superconducting “Hoverboard”, with over 10.4M views on YouTube, will be discussed.