|Événements du mois|
L'équipe de l'Institut Jean Lamour en charge de la priorité scientifique "Matériaux Artificiels Nanostructurés", accueille Ludwig Schultz (Leibniz Institute of Solid State and Materials Research - Dresden) pour un séminaire intitulé :
"Interaction of Ferromagnetic and Superconducting Permanent Magnets : Superconducting Levitation"
Date et lieu :
Mercredi 29 avril 2015 à 14h00
Institut Jean Lamour
Faculté des Sciences et Technologies de Vandœuvre-lès-Nancy
New means of urban transportation and logistics will become realistic withsuperconducting magnetic bearings using bulk high-temperature superconductors.The advantage of super-con-ducting magnetic levitation is that it is passively stablewithout any electronic control, but with attracting and repelling forces to suspend avehicle pendant or standing upright from zero to high speed. These are perfectconditions for a rail-bound, individual transport with cabins for 4 to 5 passengers,requested call by call. They will levitate noiselessly over a track made of rare-earthpermanent magnets, saving energy and travel time. A big step forward in this visionhas been made in Dresden. The world largest research and test facility for transportsystems using bulk high-temperature superconducting material in the levitation andguidance system, in combination with a permanent magnet track, was put intooperation. A vehicle for 2 passengers, equipped with linear drive propulsion, anoncontact energy supply, a second braking system, and various test andmeasurement systems is running on an 80 m long, oval driveway. In thepresentation, the principle of superconducting levitation by flux pinning in hightemperaturesupercon-ductors will be described. Based on this, an overview of theSupraTrans II research facility and future directions of super-conductivity-basedmagnetic levitation and bearing for automation technology, transportation, andmedical treatment under enhanced gravity will be given.