Angular Jc measurements at 77 K in-field, on an ISD REBCO coated conductor using a straightforward mechanical scribing technique to reduce tape width

Gurnham, C.W.A.; Große, V.; Hampshire, D.P.

doi:10.1088/1742-6596/1559/1/012036

Angular Jc measurements at 77 K in-field, on an ISD REBCO coated conductor using a straightforward mechanical scribing technique to reduce tape width

Gurnham, C.W.A.; Große, V.; Hampshire, D.P.

Authors

Charles Gurnham charles.gurnham@durham.ac.uk
PGR Student Doctor of Philosophy

V. Große

Professor Damian Hampshire d.p.hampshire@durham.ac.uk
Professor

Abstract

E-J traces have been measured on an inclined substrate deposition coated conductor up to 0.7 T as a function of angle at 77K. A large change in Jc is seen on reversal of the direction of the magnetic field, associated with different surface barriers to flux nucleation. The effect of angular hysteresis and field hysteresis on Jc has been found to be much smaller. Narrow bridges have been successfully fabricated by a simple scribing technique using a diamond-tipped scribe and a template. These bridges have been made from 1.4 mm to 4 mm width on the 12 mm width tape, which decrease Ic linearly with width. Measurements before and after the heat treatment for strain gauge glue curing at 170 °C for 120 min have been made and confirm there is no systematic decrease in Jc.

Citation

Gurnham, C., Große, V., & Hampshire, D. (2020). Angular Jc measurements at 77 K in-field, on an ISD REBCO coated conductor using a straightforward mechanical scribing technique to reduce tape width. Journal of Physics: Conference Series, 1559, Article 012036. https://doi.org/10.1088/1742-6596/1559/1/012036

Journal Article Type	Article
Acceptance Date	May 18, 2020
Online Publication Date	Jun 19, 2020
Publication Date	2020
Deposit Date	Oct 25, 2021
Publicly Available Date	Aug 15, 2023
Journal	Journal of Physics: Conference Series
Print ISSN	1742-6588
Electronic ISSN	1742-6596
Publisher	IOP Publishing
Peer Reviewed	Peer Reviewed
Volume	1559
Article Number	012036
DOI	https://doi.org/10.1088/1742-6596/1559/1/012036

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