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PROBLEM TO BE SOLVED : To provide an oxide superconducting bulk magnet member, formed by combining oxide bulk bodies each having an RE2BaCuO5 phase dispersed in an REBa2Cu3O7-x phase, which can be easily manufactured and has an intense and symmetrically uniform magnetic field even when repeatedly magnetized by a pulse magnetizing method or used for a magnet of a rotary machine such as a superconducting generator and a superconducting motor. SOLUTION : The oxide superconducting bulk magnet member is formed by combining oxide bulk bodies each having an RE2BaCuO5 phase dispersed in an REBa2Cu3O7-x phase (wherein RE represents a rare earth element or a combination thereof, and (x) represents an oxygen deficiency amount and satisfies 0
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