Anisotropy Effect on Levitation Performance of Bulk High-Tc Superconductors Above a Permanent Magnet Guideway

Autor: Qunxu Lin, Jiasu Wang, Fei Yen, Jun Zheng, Suyu Wang, Guangtong Ma, Hailian Jing, Liao Xinglin
Jazyk: angličtina
Předmět:
Zdroj: Physics Procedia. :1043-1048
ISSN: 1875-3892
DOI: 10.1016/j.phpro.2012.06.103
Popis: The anisotropy properties of bulk high-temperature superconductors (HTSCs) are taken into consideration for the application of high-temperature superconducting (HTS) Maglev systems, which are especially based on the different flux-trapping capabilities as well as critical current density, J c, values between the growth section boundary (GSB) and the growth sections (GS) in bulk superconductors. By adjusting the angle between the GSB of bulk HTSCs and the strongest magnetic field position of a permanent magnet guideway (PMG), the levitation force and its relaxation processes are compared at different field-cooling conditions. Experimental results show that the levitation capability and the suppression of levitation force decay can be enhanced by optimizing the GS/GSB alignment of every bulk HTSC above the PMG. Meanwhile, our conclusions may provide references to other HTS maglev systems with small levitation gaps, i.e., superconducting magnetic bearings.
Databáze: OpenAIRE