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Transport Property and Temperature Dependence of {\rm I}_{\rm c} in REBCO Coated Conductor Tapes by Pumping and Pressurization of {\rm LN}_{2}

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2 Author(s)
Hyung-Seop Shin ; Dept. of Mech. Design Eng., Andong Nat. Univ., Andong, South Korea ; Dedicatoria, M.J.

In practical HTS applications, heat load that will be generated from the components of the system and some external factors decides the operating conditions in a superconducting electrical device. In the device applications, HTS tapes will be subjected to bending deformations due to coiling. Therefore, it is important to investigate the dependency of the transport property in bent HTS tapes at different LN2 temperatures which will be obtained by pumping and pressurization. In this study, the transport property and the bending strain sensitivity of critical current, Ic, in IBAD/REBCO coated conductor tapes at different LN2 temperatures have been investigated. Using a devised FRP mandrel, it was possible to induce different bending strain values along the gauge length of HTS tapes under pressurized and vacuumed state. As a result, the Ic showed reversibility after each pressurization and vacuuming for differently manufactured REBCO CC samples.

Published in:

Applied Superconductivity, IEEE Transactions on  (Volume:21 ,  Issue: 3 )

Date of Publication:

June 2011

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