Effect of Composite Superconductor Structure on Dynamic Properties of Superconducting Interface and Formation in Space Application

Flux Pinning Docking Interfaces in Satellites Using Superconducting Foams as Trapped Field Magnets

“…To reach reasonably high field values, the coil systems must be kept small enough. For the FPDI, this means that configurations with 1 to 3 bulk samples are not the ones of choice; it will be better to choose an option with 4 or more disks as done in the most recent FPDI calculations by Bai et al [13]. The case of one large superconducting pellet is only feasible for field trapping, and such sizes can be best reached using superconducting foam materials as discussed below.…”

“…Koblischka permanent magnets, only a weak stiffness of few N/m can be obtained [1], [5]. While the stability, controlability, and the dynamic force characteristics of such systems were modelled extensively [8]- [13], the role of the materials employed was left completely undiscussed, using typical samples of Nd-Fe-B disks (30 mm diameter, ∼0.5 T surface field) and bulk, superconducting YBCO disks (30 mm diameter, operating at 77 K with 0.3 T trapped field). However, there has been considerable development on the material side in the recent years, and as the weight of the FPDI and its operational requirements are limiting the available payload of the satellite, this is an important question to be answered.…”