| 摘要 |
PROBLEM TO BE SOLVED: To provide an oxide superconducting coil capable of preventing deterioration of superconductivity even when operation cooling from a normal temperature to a temperature equal to or less than a critical temperature is repeated.SOLUTION: An oxide superconducting coil is formed by covering a coil body obtained by winding a tape-shaped oxide superconductor in a coil shape with a resin layer. The resin layer includes a first resin layer directly surrounding the outside of the coil body and a second resin layer surrounding the outside of the first resin layer. The first resin layer having an additive dispersed therein has a linear expansion coefficient closer to the linear expansion coefficient of the oxide superconductor than the linear expansion coefficient of the second resin layer. A structure formed by laminating an interlayer, an oxide superconducting layer and a stabilization layer on a tape-shaped substrate is applicable as the oxide superconductor. |
