Presentation Information
[10p-A31-3]Development of Ic(B,θ,T) Model for REBCO Tapes Incorporating Flux Pinning Effects at Low Temperatures
〇(D)Shohei Nojima1,2, Yuji Tsuchiya1, Kengo Miyakawa1, Tomoki Fukushima1, Ryosuke Sakagami1, Junyi Luo1, Kohki Takahashi1, Yoh Nagasaki2, Makoto Tsuda2, Satoshi Awaji1 (1.Tohoku Univ. IMR, 2.Tohoku Univ.)
Keywords:
Superconductor,REBCO conductor,Critical current property
In recent years, accurate evaluation of coil load factors and screening current-induced stress has become increasingly important in the design of high-field REBCO magnets. Furthermore, the development of cryogen-free and liquid-hydrogen-cooled magnet systems has expanded the expected operating temperature range to a wide low-temperature region. Accurate modeling of the critical current characteristics, Ic(B,θ,T), of REBCO tapes is therefore essential for magnet design and performance evaluation. However, a reliable Ic(B,θ,T) model applicable over a wide low-temperature range has not yet been fully established.
In this study, an Ic(B,θ,T) modeling method applicable to a broad low-temperature range is developed. An Ic(B,θ,T) model incorporating the contributions of multiple flux-pinning mechanisms is constructed for Fujikura REBCO tapes, and the modeling results over the temperature range from 4.2 to 30 K are presented.
In this study, an Ic(B,θ,T) modeling method applicable to a broad low-temperature range is developed. An Ic(B,θ,T) model incorporating the contributions of multiple flux-pinning mechanisms is constructed for Fujikura REBCO tapes, and the modeling results over the temperature range from 4.2 to 30 K are presented.