OXIDE SUPERCONDUCTIVE BULK MATERIAL

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PROBLEM TO BE SOLVED : To provide an oxide superconductive bulk material excellent in pulse magnetization performance in a rare earth oxide superconductive bulk material composed of a composition of RE-Ba-Cu-O (RE is elements of one or more sorts selected from Y or rare earth elements). SOLUTION : The oxide superconductive bulk material is configured by finely dispersing RE2BaCuO5 into single-crystal-like RE1Ba2Cu3Oy (RE is elements of one or more sorts selected from Y or rare earth elements, 6.8≤y≤7.2). The oxide superconductive bulk material includes a plurality of pores opened in a direction included within ±10° of a (001) direction of a crystal, and the plurality of the pores are aligned in a radial direction from the outer peripheral part of the oxide superconductive bulk material to the center. COPYRIGHT : (C)2012, JPO&INPIT