论文信息 - Development and Study of Nb3Sn Wires With High Specific Heat

Development and Study of Nb3Sn Wires With High Specific Heat

Recently, a new type of Nb3Sn conductor was developed, which, by incorporating substances with high specific heat at 2–8 K in a proper design, has demonstrated significant improvement of minimum quench energy (MQE). This approach to improving conductor stability is promising to reduce Nb3Sn magnet training. This paper continues studying this type of conductor. Voltage–current (V-I) tests from 15 to 0 T and voltage–field (V-B) sweeps at various currents were conducted to investigate the influence of increased specific heat on the intrinsic stability. MQE and normal zone propagation velocity (NZPV) were also measured. Finally, a scheme was put forward to introduce new types of substances with not only high specific heat but also high thermal diffusivity to Nb3Sn conductors, which is expected to work more effectively.

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