Flux Trapping and Field Magnet Stability of Bulk Superconductors

11th European Conference on Applied Superconductivity

Zhang, Y.F.^1 ; Zhou, W.^1 ; Xu, Y.^1 ; Li, B.^2 ; Zhou, D.^2 ; Tsuzuki, K.^2,3 ; Watasaki, M.^2 ; Miki, M.^2 ; Izumi, M.^2

Shanghai University of Electric Power, New Pudong, Shanghai

201300, China^1

Tokyo University of Marine Science and Technology, Tokyo

135-8533, Japan^2

Toba National College of Maritime Technology, Mie

517-8501, Japan^3

关键词: Bulk high temperature superconductors;    Bulk superconductors;    Current status;    Engineering applications;    External fields;    External perturbations;    Magnet stability;    Materials process;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/507/1/012021/pdf
DOI  :  10.1088/1742-6596/507/1/012021

来源: IOP

【 摘 要 】

The stability and durability of trapped flux is a focus in investigations of melt-growth (RE)Ba2Cu3O7-δ(RE=rare earth, e.g., Y, Gd, Sm) bulk high-temperature superconductors. In magnetic flux engineering applications, two important issues affect the expected performance of bulk superconductors: flux trapping and flux stability or durability. The introduction of effective pinning with homogeneous spatial distribution is inevitable. The materials process and durability studies have been pursued in the last decade with either a stationary or a momentary applied external field. In machine applications, the magnetic flux stability is influenced by external perturbations. We topically summarize our progress and current status in relation to past and ongoing work.