| 摘要 |
PROBLEM TO BE SOLVED: To obtain a metallic substrate having a long size, homogeneity or a large area and having high mechanical strength and excellent smoothness with high productivity at a low cost by constituting the substrate of a metallic film layer having the recrystallization texture grown by contact with a superconducting film and a metallic base material having the yield strength higher than the yield strength thereof. SOLUTION: Ni and Al are alternately laminated and the metallic coating layer of Pt, Ag, etc., forming the recrystallization texture having excellent orientation controllability is formed thereon. This composite is worked as it is to an approximately long-sized tape form, flat planar form, etc. This worked body is rolled to a desired shape, such as a long-sized tape or flat plate, by subjected to the body to intermediate annealing. This molding is then annealed in an inert gaseous atmosphere, etc., and is further fired at need. As a result, the metallic substrate for flexible oxide superconductors which consists of the metallic coating layer 1 formed with the recrystallization texture grown by contact with the superconducting film and the metallic base material 3 of an intermediate metallic compound, 2, such as high-strength Ni3Al, and is preferably >=100 MPa in the yield stress value is obtained.
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