Abstract
In this paper, we present a direct measurement of the transport AC loss in solder joint of the YBa 2Cu3O7−x -coated conductor (YBCO CC) at liquid nitrogen temperature. The method is based on measuring the temperature rise of the thermally insulated joint which is fabricated by soldering the YBCO CC samples face to face without removing the metallic stabilizer. The contact resistances in these joints are in the range of 10 to 40 n Ω. It is found that (1) the AC losses in the sample with lap joint dependence of I/I c can be described by use of a third-order power law, where I and I c denote the transport current peak and critical current of the YBCO CC sample, respectively. (2) The loss in sample with joint is greater than that of the original YBCO CC sample in case of I/I c<0.6, while there are no much in the loss in two kinds of sample when I/I c is in the range from 0.6 to 0.7. Once I/I c>0.7, the loss in sample with joint is less than that in the original tape.
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.
