SUPERCONDUCTING BULK MAGNET AND MAGNETIZATION METHOD OF SUPERCONDUCTING BULK MAGNET

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PROBLEM TO BE SOLVED : To provide a superconducting bulk magnet in which the magnetic gradient becomes high simultaneously, in the vicinity of a superconducting body central part where the magnetic field strength is highest. SOLUTION : In a superconducting bulk magnet using an oxide superconducting bulk body where RE2BaCuO5 is dispersed into a monocrystalline RE1Ba2Cu3O7-x, the shape of the oxide superconducting bulk body is partial spherical shape consisting of a plane part and a partial spherical surface part, or conical shape consisting of a plane part and a conical surface part. RE is one kind or more than one kind of elements selected from rare earth elements, and the oxygen deficiency amount (x) is 0.2 or more. SELECTED DRAWING : Figure 1 COPYRIGHT : (C)2016, JPO&INPIT