Abstract
Current transfer length (CTL) and current sharing with the normal paths for a metal sheathedMgB2 superconductor are studied by analytical and numerical methods. The study was aimed at wiregeometries with short sample lengths. The computations show low CTL values for Fe sheathedMgB2 and significantly higher CTL for Cu sheathedMgB2. For short length samples a considerable part of the applied current is not transferred intothe superconducting layer and flows through the sheath in Cu sheathed conductors.Close to the current contacts the heat generated due to current sharing withnormal paths is significantly higher for the Fe sheath than for the Cu sheath.
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