NDLI: Trapped Field Profiles for 40-mm Wide Superconducting Tape Pieces

Content Provider	Springer Nature Link
Author	Patel, A. Usoskin, A. Baskys, A. Hopkins, S. C. Glowacki, B. A.
Copyright Year	2014
Abstract	Stacks of superconducting tape can be magnetized to form a new type of permanent magnet due to their ability to circulate persistent currents. Previous work has mostly focussed on magnetization of smaller stacks made of 12-mm tape, but this study reports the trapped field from both field cooling and pulsed field magnetization at 77 K for larger 40-mm wide, high-temperature superconducting tape produced by Bruker HTS. The tape used in this study had a critical current of approximately 570 A at 77 K (self-field). The trapped field profile is reported for a stack of eight octagonal tape pieces showing very high symmetry, and detailed Hall probe scans of the individual tape layers at 77 K reveal the uniformity of the pieces and presence of any defects which divert current flow. The effect of cutting the layers and also applying compressive strain on the tape pieces was investigated. It was found that cutting the 40-mm large squares into octagons had negligible effect on trapped field whilst compressing the layers, which are naturally curved, can lead to reversible degradation of trapped field for large enough compression. Magnetized stacks of tape of a large size and relatively uniform current density represent an attractive technology for trapped field permanent magnets with high magnetic field and flux.
Starting Page	397
Ending Page	401
Page Count	5
File Format	PDF
ISSN	15571939
Journal	Journal of Superconductivity and Novel Magnetism
Volume Number	28
Issue Number	2
e-ISSN	15571947
Language	English
Publisher	Springer US
Publisher Date	2014-08-21
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	YBCO Coated conductor Superconducting tape Trapped field Pulsed magnetization Strongly Correlated Systems, Superconductivity Magnetism, Magnetic Materials Condensed Matter Physics Characterization and Evaluation of Materials
Content Type	Text
Resource Type	Article
Subject	Electronic, Optical and Magnetic Materials Condensed Matter Physics

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Continuous Deposition of YBCO Films for Coated Conductor Using PLD Method

Prototype Fault Current Limiter Using Transformer and a Modular Device of YBCO Coated Conductor

Small-Sized Hybrid Magnet with Pulsed Field Magnetization

The Effectiveness of Pulsed-Field Magnetization with Respect to Different Performance Bulk Superconductors

Transport AC Losses in Soldered Joint of the YBCO-Coated Conductors

Reel-to-Reel PLD Fabrication of YBCO Coated Conductor by Single and Multi-coating Processes

Electrical and Superconducting Properties in Lap Joints for YBCO Tapes

Electrothermal Modeling of Coated Conductor for a Resistive Superconducting Fault-Current Limiter

Flux Jumps at Pulsed Field Magnetization

Trapped Field Profiles for 40-mm Wide Superconducting Tape Pieces

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