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2. 发明公开

EP0427209A3 Process for producing oxide superconductor 失效
标题翻译：生产氧化物超导体的方法
公开(公告)号：EP0427209A3
公开(公告)日：1991-12-04
申请号：EP90121230.8
申请日：1990-11-06
申请人： INTERNATIONAL SUPERCONDUCTIVITY TECHNOLOGY CENTER , Nippon Steel Corporation , SHIKOKU ELECTRIC POWER CO., INC. , RAILWAY TECHNICAL RESEARCH INSTITUTE
发明人： Murakami, Masato, c/o Superconductivity Res. Lab. , Oyama, Terutsugu, c/o Superconductivity Res. Lab. , Fujimoto, Hiroyuki, c/o Superconductivity Res. Lab , Koshizuka, Naoki, c/o Superconductivity Res. Lab. , Shiohara, Yu, c/o Superconductivity Res. Lab. , Tanaka, Shoji, c/o Superconductivity Res. Lab.
IPC分类号： C04B35/00 , C04B35/60 , H01L39/24
CPC分类号： H01L39/2419 , C04B35/4504 , C04B35/653
摘要： A process for producing an oxide superconductor of an REBaCuO-system, RE being one or more of rare earth elements including yttrium, comprising the steps of: preparing a solid mixture of oxides of the component elements of an oxide superconductor of an REBaCuO-system, the solid mixture having a chemical composition such that a structure substantially composed of an RE₂BaCuO₅ phase and a REBa₂CU₃O x phase is formed in the later step of cooling; heating the solid mixture to form a solid-and-liquid mixture of an RE₂O₃ phase and a liquid phase or of an RE₂BaCuO₅ phase and a liquid phase; cooling the solid-and-liquid mixture to cause a peritectic reaction and form a solid body having a structure substantially composed of an RE₂BaCuO₅ phase and a REBa₂Cu₃O x phase; pulverizing the solid body to form granules; agitating the granules to an extent such that a fine and uniform dispersion of an RE₂BaCuO₅ phase in a liquid phase is obtained in the later step of re-heating; filling the granules in a flexible tube; applying a longitudinal tension to the flexible tube filled with the granules; isostatically pressing the flexible tube, while maintaining the tension, to form a compact body; relaxing the isostatic pressure and the longitudinal tension; and subjecting the compact body to a treatment for promoting the growth of the REBa₂Cu₃O x phase therein, the treatment including the steps of re-heating the compact body to a temperature at which an RE₂BaCuO₅ phase and a liquid phase coexist and then cooling the compact body to a temperature at which the REBa₂Cu₃O x phase and the RE₂BaCuO₅-phase coexit.

3. 发明公开

EP0427209A2 Process for producing oxide superconductor 失效
标题翻译：赫尔斯特朗·赫斯特伦
公开(公告)号：EP0427209A2
公开(公告)日：1991-05-15
申请号：EP90121230.8
申请日：1990-11-06
申请人： INTERNATIONAL SUPERCONDUCTIVITY TECHNOLOGY CENTER , Nippon Steel Corporation , SHIKOKU ELECTRIC POWER CO., INC. , RAILWAY TECHNICAL RESEARCH INSTITUTE
发明人： Murakami, Masato, c/o Superconductivity Res. Lab. , Oyama, Terutsugu, c/o Superconductivity Res. Lab. , Fujimoto, Hiroyuki, c/o Superconductivity Res. Lab , Koshizuka, Naoki, c/o Superconductivity Res. Lab. , Shiohara, Yu, c/o Superconductivity Res. Lab. , Tanaka, Shoji, c/o Superconductivity Res. Lab.
IPC分类号： C04B35/00 , C04B35/60 , H01L39/24
CPC分类号： H01L39/2419 , C04B35/4504 , C04B35/653
摘要： A process for producing an oxide superconductor of an REBaCuO-system, RE being one or more of rare earth elements including yttrium, comprising the steps of: preparing a solid mixture of oxides of the component elements of an oxide superconductor of an REBaCuO-system, the solid mixture having a chemical composition such that a structure substantially composed of an RE₂BaCuO₅ phase and a REBa₂CU₃O x phase is formed in the later step of cooling; heating the solid mixture to form a solid-and-liquid mixture of an RE₂O₃ phase and a liquid phase or of an RE₂BaCuO₅ phase and a liquid phase; cooling the solid-and-liquid mixture to cause a peritectic reaction and form a solid body having a structure substantially composed of an RE₂BaCuO₅ phase and a REBa₂Cu₃O x phase; pulverizing the solid body to form granules; agitating the granules to an extent such that a fine and uniform dispersion of an RE₂BaCuO₅ phase in a liquid phase is obtained in the later step of re-heating; filling the granules in a flexible tube; applying a longitudinal tension to the flexible tube filled with the granules; isostatically pressing the flexible tube, while maintaining the tension, to form a compact body; relaxing the isostatic pressure and the longitudinal tension; and subjecting the compact body to a treatment for promoting the growth of the REBa₂Cu₃O x phase therein, the treatment including the steps of re-heating the compact body to a temperature at which an RE₂BaCuO₅ phase and a liquid phase coexist and then cooling the compact body to a temperature at which the REBa₂Cu₃O x phase and the RE₂BaCuO₅-phase coexit.
摘要翻译：一种制备REBaCuO体系的氧化物超导体的方法，RE是包括钇在内的一种或多种稀土元素，包括以下步骤：制备REBaCuO体系的氧化物超导体的组分元素的氧化物的固体混合物，所述固体混合物具有如下化学组成：在后续的冷却步骤中形成基本上由RE2BaCuO5相和REBa2CU3Ox相构成的结构; 加热固体混合物以形成RE2O3相和液相或RE2BaCuO5相和液相的固 - 液混合物; 冷却固体和液体混合物引起包晶反应并形成具有基本上由RE2BaCuO5相和REBa2Cu3Ox相组成的结构的固体; 粉碎固体以形成颗粒; 搅拌颗粒达到在后续再加热步骤中获得液相中RE2BaCuO5相细微均匀分散的程度; 将颗粒填充在柔性管中; 向填充有颗粒的柔性管施加纵向张力; 均匀地按压柔性管，同时保持张力，形成紧凑的身体; 放松等静压和纵向张力; 对压实体进行REBa2Cu3Ox相的生长促进处理，其处理包括以下步骤：将压实体再加热至RE2BaCuO5相和液相共存的温度，然后冷却压实体至 REBa2Cu3Ox相和RE2BaCuO5相共存的温度。

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