The study of relaxation characteristics of stack of HTS tapes for use in levitation systems and trapped flux magnets

11th European Conference on Applied Superconductivity

Pokrovskiy, S.^1 ; Mineev, N.^1 ; Sotnikova, A.^1 ; Ermolaev, Y.^1 ; Rudnev, I.^1

National Research Nuclear University "MEPHI", Russia, Moscow International Laboratory of High Magnetic Fields and Low Temperatures, Wroclaw, Poland^1

关键词: Coated conductors;    Force amplitude;    Levitation force;    Levitation systems;    Magnetization loops;    Magnetization relaxation;    Measurements of;    Trapped field magnet;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/507/2/022025/pdf
DOI  :  10.1088/1742-6596/507/2/022025

来源: IOP

【 摘 要 】

We present experimental data and analysis of application of coated conductors (CC) for levitation and trapped field magnets. The magnetization loops and magnetization relaxation curves were obtained in fields up to 14 T and temperatures from 4.2 K to 77.4 K. The levitation force and its relaxation were measured for the stack of superconducting tapes at T=77 K. The measurements of levitation force for different stack sizes demonstrate the linear growth of the force amplitude and the improvement of the relaxation characteristics as a number of tapes in a stack increases.