| 摘要 |
PROBLEM TO BE SOLVED: To provide a method of preparing a rare earth oxide super-conductor having high density and high strength. SOLUTION: This method comprises the steps of preparing a rare earth oxide super-conductor preparatively heat treated under oxygen atmosphere or under vacuum, and melting it to grow. More specifically, this method comprises the steps of mixing the materials containing the constituting elements of the rare earth oxide super-conductor in a prescribed ratio, forming the mixture to obtain a preparative formed body, heat treating the preparative formed body in vacuum or in an atmosphere consisting of oxygen only to obtain a preparative sintered compact, pyrolyzing the preparative sintered compact at a temperature below the foaming threshold value of oxygen, and melting to grow.
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