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Trapped fields greater than 7 T in a 12 mm square stack of commercial high-temperature superconducting tape
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10.1063/1.4795016
/content/aip/journal/apl/102/10/10.1063/1.4795016
http://aip.metastore.ingenta.com/content/aip/journal/apl/102/10/10.1063/1.4795016

Figures

Image of FIG. 1.
FIG. 1.

(a) Schematic of the double (RE)BCO tape stack used for the field cooling experiment. (b) 120 of the square tape layers compressed to form a tape stack. (c) Components of the 12 mm wide SuperPower superconducting tape from which 12 mm lengths were cut.

Image of FIG. 2.
FIG. 2.

Trapped field between two 120 layer tape stacks using the field cooling method at various temperatures. The increase in field as temperature decreases is approximately linear, reaching a maximum at the center of 7.34 T at 4.2 K.

Image of FIG. 3.
FIG. 3.

Flux creep measurements for trapped field for different temperatures in the first 5 min after magnetization. B0 is the trapped field 10 s after magnetization. The creep rate appears strongly dependent on temperature.

Image of FIG. 4.
FIG. 4.

Comparison of pulsed magnetization results for a single stack of 145 tapes 4 and prediction for field cooling of the same stack. The prediction is based on geometric scaling of trapped field for 120 layer double stack reported in this paper and assumes the current density would be the same for both stacks.

Tables

Generic image for table
Table I.

Parameters and volume fraction for each compressed 120 layer stack of tapes used in the experiment.

Generic image for table
Table II.

Properties of Hastelloy C-276 substrate, silver over-layer and bulk YBCO at cryogenic temperatures. A range of values is given for 10–77.4 K where there is a known temperature dependence.

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/content/aip/journal/apl/102/10/10.1063/1.4795016
2013-03-11
2014-04-25
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Trapped fields greater than 7 T in a 12 mm square stack of commercial high-temperature superconducting tape
http://aip.metastore.ingenta.com/content/aip/journal/apl/102/10/10.1063/1.4795016
10.1063/1.4795016
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