Anisotropy Effect on Levitation Performance of Bulk High-Tc Superconductors Above a Permanent Magnet Guideway
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- 作者：Jun Zheng ; Xinglin Liao ; Hailian Jing ; Qunxu Lin ; Guangtong Ma ; Fei Yen ; Suyu Wang ; Jiasu Wang
- 关键词：Bulk high-temperature superconductors ; Growth section boundary ; Magnetic levitation ; YBaCuO
- 刊名：Physics Procedia
- 出版年：2012
- 出版时间：2012
- 年：2012
- 卷：36
- 期：Complete
- 页码：1043-1048
- 全文大小：256 K
文摘
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, Jc, 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.