Influences of Permanent Magnets Temperature Characteristic on the Levitation Force of YBaCuO Bulk Superconductors
- First Online:
- Cite this article as:
- Zhang, XY., Zhou, YH. & Zhou, J. J Supercond Nov Magn (2012) 25: 857. doi:10.1007/s10948-011-1364-5
- 108 Views
Influences of the temperature characteristic of sintered SmCo and NdFeB permanent magnets (PM) on the levitation force of YBaCuO bulk superconductor have been investigated in this paper. It is found that for a NbFeB PM and a SmCo PM which have the same geometric parameters, a larger influence on the levitation force of a temperature decrease of the NdFeB PM has been found. The maximum change of levitation force is as high as 47.6% at a gap of 2 mm between the bottom surface of NdFeB PM and the top surface of YBaCuO bulk when the temperature of the NdFeB PM decreases from room temperature to 77 K. This work provides basic data for high temperature superconducting levitation system measurements.