원문정보
초록
한국어
When REBCO coated conductors (CCs) are applied to superconducting devices such as coils and magnets, they are subjected to deformation in various modes such as compression/tension bending, uniaxial/transverse tension and torsion. Despite outstanding performances by REBCO CC tapes, their electromechanical properties have been evaluated primarily under uniaxial tension, therefore data about the critical current (Ic) response in the compressive strain region are lacking. In this study, the characteristic responses of Ic in REBCO CC tapes under bending strains in the range from tensile to compressive were evaluated. The springboard bending beam was used, wherein the CC tape sample was soldered onto the surface of the springboard. A Goldacker-type bending test rig, which lacks a support holding the sample during testing, was used as a comparator. Degradation in Ic behaviors, including strain sensitivity, in differently processed REBCO CC tapes were examined based on the test rig used.
목차
1. INTRODUCTION
2. EXPERIMENTAL PROCEDURES
2.1. Samples
2.2. Electromechanical test procedure under bending strain
2.3. Calculation of the bending strain induced on the springboard bending beam
3. RESULTS AND DISCUSSION
3.1. Electromechanical properties under bending strain
3.2. Ic - strain sensitivity under bending strains
4. CONCLUSIONS
ACKNOWLEDGMENT
REFERENCES