The effects of superconductor–stabilizer interfacial resistance on the quench of a current-carrying coated conductor

Abstract

We present the results of numerical analysis of a model of normal zone\npropagation in coated conductors. The main emphasis is on the effects of\nincreased contact resistance between the superconducting film and the\nstabilizer on the speed of normal zone propagation, the maximum temperature\nrise inside the normal zone, and the stability margins. We show that with\nincreasing contact resistance the speed of normal zone propagation increases,\nthe maximum temperature inside the normal zone decreases, and stability margins\nshrink. This may have an overall beneficial effect on quench protection quality\nof coated conductors. We also briefly discuss the propagation of solitons and\ndevelopment of the temperature modulation along the wire.\n