Kolloquiumsvortrag: Prof. Ludwig Schultz - IFW Dresden/TU Dresden / 25.01.16
25.01.2016 von 17:15 bis 18:45
Institut Materialwissenschaft, Kaiserstr. 2, 24143 Kiel, Geb. D, Raum: "Aquarium
Titel:
Interaction of Ferromagnetic and Superconducting Permanent Magnets:
Superconducting Levitation
Abstract:
New means of urban transportation and logistics will
become realistic with superconducting magnetic bearings using bulk
high-temperature superconductors. The advantage of superconducting magnetic
levitation is that it is passively stable without any electronic control, but
with attracting and repelling forces to suspend a vehicle pendant or standing
upright from zero to high speed. These are perfect conditions for a rail-bound,
individual transport with cabins for 4 to 5 passengers, requested call by call.
They will levitate without noise over a track made of rare-earth permanent
magnets, saving energy and travel time. A big step forward in this vision has
been made in Dresden. The world 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. A vehicle for 2 passengers, equipped with linear drive
propulsion, noncontact energy supply, second braking system, and various test
and measurement systems is running on an 80 m long, oval driveway. In the
presentation, the principle of superconducting levitation by flux pinning in
high-temperature superconductors will be described. Based on this, an overview
of the SupraTrans II research facility and future directions of superconductivity-based
magnetic levitation and bearing for automation technology, transportation, and
medical treatment under enhanced gravity will be given. Also the
superconducting hoverboard, recently presented by Lexus, will be presented.