New progress of ITER-PF strand production in WST

11th European Conference on Applied Superconductivity

Li, J.F.^1,2 ; Liu, W.T.^1,2 ; Yan, L.X.^1,2 ; H, J.^1,2 ; Gao, H.X.^1,2 ; Liu, J.W.^1,2 ; Du, S.J.^1,2 ; Liu, X.H.^1,2 ; Feng, Y.^1,2 ; Zhang, P.X.^1,2,3 ; Liu, S.^4 ; Li, H.W.^4 ; Niu, E.W.^4

Western Superconducting Technologies Co., Ltd., Xi'an

710018, China^1

National Engineering Laboratory for Superconducting Materials Preparation, Xi'an

710018, China^2

Northwest Institute for Nonferrous Metal Research, PO Box 51, Xi'an

710016, China^3

China International Nuclear Fusion Energy Program Execution Center, Beijing

100862, China^4

关键词: Hysteresis loss;    N value;    NbTi superconductor;    Poloidal field;    Superconducting technology;    Wire diameter;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/507/2/022014/pdf
DOI  :  10.1088/1742-6596/507/2/022014

来源: IOP

【 摘 要 】

ITER Poloidal Field (PF) systems consist of 6 independent coils with different dimensions and require NbTi superconductor and copper strands. Western Superconducting Technologies Co.,Ltd.(WST) will supply PF2-5 NbTi strand for ITER, and over 14,000 km of NbTi strands have been produced in the past two years. Main performance of NbTi strands, including critical current, n value, wire diameter, Cu/non-Cu ratio, hysteresis loss and RRR are reported and analysed in this paper.