Title :
Magnetic levitation force measurement on high Tc superconducting ceramic/polymer composites
Author :
Unsworth, Joseph ; Du, Jia ; Crosby, Bryan J. ; Macfarlane, John C.
Author_Institution :
Fac. of Sci., Univ. of Technol., Sydney, NSW, Australia
fDate :
1/1/1993 12:00:00 AM
Abstract :
An experimental study of magnetic levitation force for 0-3 and 3-3 superconducting ceramic-polymer composites is presented. A simple, inexpensive force-versus-distance measurement technique is described. The measurements of force against distance or magnetic field show strong hysteretic behavior, which is similar to the sintered superconductor ceramics and is consistent with the hysteresis in magnetization of superconductor. The volume fraction dependence and sample thickness dependence of the levitation forces are also studied for 0-3 composites. Results suggest that the new composite materials are most suitable for levitation applications
Keywords :
composite superconductors; electromagnetic induction; filled polymers; high-temperature superconductors; magnetic hysteresis; magnetic levitation; HTSC; PVC composite; YBa2Cu3O7-x; epoxy composite; force-versus-distance measurement technique; hysteresis loops; hysteretic behavior; magnetic levitation force; sample thickness dependence; superconducting ceramic-polymer composites; volume fraction dependence; Ceramics; Composite materials; Force measurement; Magnetic flux; Magnetic levitation; Magnetic separation; Polymers; Superconducting magnets; Superconducting materials; Yttrium barium copper oxide;
Journal_Title :
Magnetics, IEEE Transactions on
