Effect of Mechanical Loading on Coated Conductor Tapes Due to Winding Onto Round Cables

Structural Analysis of Superconductors at MTF: A Review

“…We presented a review of major achievements of the research team investigating superconductors. The review was mostly based on our most important Current Contents publications (1)(2)(3)(4)(5)(6)(7)(8), which earned so far more than 45 citations (Web of Science, November 2018). Since the award of the first research grant to our group in 2011, we have been involved in three domestic research projects (VEGA, APVV) and one international project ("FASTGRID", item 4 in Acknowledgements).…”

“…Since the award of the first research grant to our group in 2011, we have been involved in three domestic research projects (VEGA, APVV) and one international project ("FASTGRID", item 4 in Acknowledgements). We also paid attention to dissemination of our work in popularization articles (12)(13)(14) and conference contributions and abstracts (15)(16)(17)(18)(19)(20)(21)(22)(23)(24). In total, 20 students received their degree in the field of superconductors, of which eight earned their bachelor degrees, 10 master degrees, and two doctoral degrees.…”

“…4b). Hence, limits of the maximal load must be determined in order to avoid significant degradation the electromagnetic properties of tapes (5,9). Two cable helix arrangements were researched: the "out" type ( Figs.…”

“…During cabling, handling, joining and operation, the tapes are expected to experience mechanical loads, which may significantly modify their structure, and hence alter the electromagnetic properties. Thus, in the second stage, we spent efforts to understand the changes in the structure after the tapes were mechanical loaded (5,6). For some applications, longer lengths of tapes are required than it is feasible to prepare; there is thus necessity to improve joining techniques with the goal to minimize degradation effects of the joining on superconductor (7,8).…”

The performance of first CORC cable solenoid insert for development of CFETR high-field magnet

“…The CORC wire exhibits the advantages of flexibility, copper core stabilization and isotropic bending, which are suitable for CICC large-size cable/conductor and coil manufacturing. The critical current of ReBCO tapes is strain-dependent [15][16][17]. The strain arising from the cable winding and bending as well as cable cooling and operation may cause current redistribution between tapes and performance degradation.…”