Oxide superconductor and method for manufacturing same
摘要
說明書
In the superconducting wire 100 of the first embodiment, the oxide superconducting layer 30 is divided into a plurality of superconducting regions 31 by the non-superconducting region 32. The non-superconducting region 32 is formed by applying or injecting a coating solution. Therefore, the non-superconducting region 32 does not spread from the non-superconducting region 32 toward the superconducting region 31.
According to the superconducting wire 100 of the first embodiment, the width of the coating solution 35b for forming a non-superconducting region on the substrate 10 defines the width of the non-superconducting region 32. Therefore, for example, the non-superconducting region 32 having an extremely narrow width of 80 μm or less can be formed by the die coating method or the non-superconducting region 32 having an extremely narrow width of 10 μm or less can be formed by the inkjet method. Therefore, it is possible to obtain a higher AC loss reduction effect as compared with the superconducting wire 910 of the second comparative example.
In addition, since the superconducting wire 100 is formed by a perovskite structure in which the superconducting region 31 and the non-superconducting region 32 are continuous, sufficient mechanical strength can be obtained.
The oxide superconductor of the third comparative example is a superconducting wire 920.
