Abstract
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.
Highlights
Flux Trapping and Field Magnet Stability of Bulk SuperconductorsYF Zhang, W Zhou, Y Xu1, B Li2, D Zhou, K Tsuzuki, M Watasaki, M Miki and M Izumi2 1Shanghai University of Electric Power, New Pudong, Shanghai 201300, China 2Tokyo University of Marine Science and Technology, Tokyo 135-8533, Japan 3Toba National College of Maritime Technology, Mie 517-8501, Japan
Melt-growth (RE)Ba2Cu3O7-δ (RE=rare earth Y, Gd, Sm, etc.) bulk high-temperature superconductors have attracted interest for their potential applications, and trapped flux densities of 17 T at 29 K [1] and 3 T at 77 K [2] have been shown
An improvement in Jc under a magnetic field has been reported by introducing the possible interface between the non-superconducting and superconducting phases
Summary
YF Zhang, W Zhou, Y Xu1, B Li2, D Zhou, K Tsuzuki, M Watasaki, M Miki and M Izumi2 1Shanghai University of Electric Power, New Pudong, Shanghai 201300, China 2Tokyo University of Marine Science and Technology, Tokyo 135-8533, Japan 3Toba National College of Maritime Technology, Mie 517-8501, Japan
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