[10p-A31-1~16] 11.2 Wires, Bulks, Fabrication process, Power applications

1:00 PM - 1:15 PM JST(4:00 AM - 4:15 AM UTC)

[10p-A31-1] Comparison of Finite-Element Analysis and Experimental Measurements of Temperature Distributions During the Sonic Welding Process of Cu-Stabilized REBCO Coated Conductors

〇Shinya Sera¹, Zeyu Wu¹, Kohei Higashikawa¹, Takanobu Kiss¹ (1.Kyushu Univ.)

Keywords:

REBCO coated conductors,sonic welding

Sonic welding has attracted attention as a low-resistance joining technique for REBCO coated conductors. We have previously reported a correlation between the interfacial temperature predicted by finite-element thermal analysis and the degradation of superconducting properties. In this study, to validate the thermal analysis model, the temperature distribution during the sonic welding process of Cu-stabilized REBCO coated conductors was experimentally measured using K-type thermocouples and compared with simulation results. Through this comparison, the validity of the thermal analysis model for the sonic welding process was evaluated.