Quench Characteristics of a Cu-Stabilized 2G HTS Conductor
Quench Characteristics of a Cu-Stabilized 2G HTS Conductor
复制标题
Cu 稳定 2G HTS 导体的淬火特性
DOI：
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发表时间：
2011
影响因子：
1.8
通讯作者：
Y. Yang
中科院分区：
文献类型：
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作者：
E. Young;S. Chappell;I. Falorio;Y. Yang
随着这些导体性能的不断提高，使用2G HTS带材的中高场超导磁体的前景正在接近现实。直接测量一维绝热失超的启动和传播的铜稳定的2G导体已进行与时空记录的温度和电压的沉积后的各种局部热脉冲的导体在不同的温度之间的40 K和64 K携带不同的传输电流。发现不含稳定剂的2G带保持了先前在非稳定带中测量的增加的最小传播区（MPZ）的独特特性，在较低温度下具有传输电流和较高的淬火能量。在低温和~ 0.1T的背景场下研究了最小传播区长度。MPZ尺寸的变化进行了讨论的上下文中的温度依赖的物理性质，包括E-J特性。结果增加了更多的细节，以帮助理解增加MPZ与运输电流和较低的温度的独特特性。
The prospect of medium/high field superconducting magnets using 2G HTS tapes is approaching to reality with continued enhancement in the performance of these conductors. Direct measurements of 1D adiabatic quench initiation and propagation of a Cu-stabilized 2G conductor have been carried out with spatial-temporal recording of temperature and voltage following the deposition of various local heat pulses to the conductor at different temperatures between 40K and 64K carrying different transport currents. It was found that the stabilizer-free 2G tape maintains the unique characteristics previously measured in non-stabilized tape of increasing minimum propagation zone, (MPZ), with transport current and higher quench energy at lower temperatures. The minimum propagation zone length is investigated at low temperatures and in a background field of ~ 0.1T. The change in MPZ size is discussed in the context of the temperature dependent physical properties including the E-J characteristics. The results add more detail to help understand the unique characteristics of increasing MPZ with transport current and lower temperatures.