The effects of superconductor-stabilizer interfacial resistance on quench of current-carrying coated conductor
G. A. Levin, P. N. Barnes, K. A. Novak
备注：
To be published in Superconductor Science and Technology. This preprint contains one animated figure (Fig. 6(a)). when asked whether you want to play the content, click "Play". Acrobat Reader (Windows and Mac, but not Linux) will play embedded flash movies. In the printed copy Fig. 6(b) will show the temperature profile at gamma t=150
We present the results of numerical analysis of a model of normal zone propagation in coated conductors. The main emphasis is on the effects of increased contact resistance between the superconducting film and the stabilizer on the speed of normal zone propagation, the maximum temperature rise inside the normal zone, and the stability margins. We show that with increasing contact resistance the speed of normal zone propagation increases, the maximum temperature inside the normal zone decreases, and stability margins shrink. This may have an overall beneficial effect on quench protection quality of coated conductors. We also briefly discuss the propagation of solitons and development of the temperature modulation along the wire.
An equation for the quench propagation velocity valid for high field magnet use of REBCO coated conductors
在热物理性质研究的基础上，导出了适用于$_2$ $_3$ O $_{7-x}$涂层导体在强磁场中正常区传播速度的实用公式。还提出了一个解析表达式来评估作为操作条件的函数的电流共享温度。本研究使我们能够解释在文献中广泛使用的模型框架中未完全理解的实验结果。特别是，我们提供了一个基本的理解，在REBa $_2$ Cu $_3$ O $_{7-x}$涂层导体的正常区传播速度的实验证据，可以主要由工作电流，无论施加的字段和温度。
