Speaker
Description
The inter-strand contact resistance in REBCO-based superconducting cables is a key parameter influencing current redistribution, AC losses, and cable stability. In this study, we measured the inter-strand resistance of short vertically stacked tape (VST) samples at liquid nitrogen temperature (77 K). The effective contact resistivities between the stabilizer and the REBCO tapes were estimated based on experimental results and validated using a finite element model.
The analysis revealed that the edge-side contact of REBCO tapes plays a significant role in determining the inter-strand resistance. This finding highlights the importance of optimizing fabrication process and material interfaces for improved cable performance. This study provides foundational insights into the inter-strand resistance of REBCO cables, offering a basis for further investigations and optimization in superconducting cable design for advanced applications.
