Abstract
We present the results of numerical analysis of normal zone propagation in a stack ofYBa2Cu3O7 − x coated conductors which imitates a pancake coil. Our main purpose is to determine whetherthe quench protection quality of such coils can be substantially improved by increasedcontact resistance between the superconducting film and the stabilizer. We show that withincreased contact resistance the speed of normal zone propagation increases, the detectionof a normal zone inside the coil becomes possible earlier, when the peak temperature insidethe normal zone is lower, and stability margins shrink. Thus, increasing contact resistancemay become a viable option for improving the prospects of coated conductors for highTc magnet applications.
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