Abstract
We developed a non-destructive method for measuring the critical current density (Jc) in YBCO-coated conductors by using a permanent magnet (Sm2Co17). Jc could be determined from the repulsive force (Fr) generated between a permanent magnet and a coated conductor where shielding current flows. We tried to detect a smaller Jc region in the coated conductor by using the system. The Jc distribution could be determined without influence from the thick copper film on YBCO thin film. We also examined the influence of damage to the film on the Jc distribution. The surface of the coated conductors was cut by using a knife. The measured Fr when the permanent magnet approached the cut part was smaller than that of the undamaged area. This Jc measurement technique will be useful for detecting smaller Jc regions and defects in coated conductors.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
