公开(公告)号：EP0516148A3

公开(公告)日：1993-03-17

申请号：EP92109097.3

申请日：1992-05-29

申请人： SUMITOMO ELECTRIC INDUSTRIES, LIMITED ,  UBE INDUSTRIES, LTD. ,  MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. ,  INTERNATIONAL SUPERCONDUCTIVITY TECHNOLOGY CENTER

发明人： Kaneko, Tetsuyuki, c/o Int.Supercond.Tech.Cent. ,  Yamauchi, Hisao, c/o Int.Supercond.Tech.Cent. ,  Tanaka, Shoji, c/o Int. Supercond. Tech. ,  Hamada, Kazuyuki, c/o Ube Industries Ltd. ,  Adachi, Seiji, c/o Matsushita Electr. Ind.Co.,Ltd.

IPC分类号： H01L39/12 ,  H01L39/24

CPC分类号： C04B35/4512 ,  H01L39/126

摘要： In order to provide a Tℓ-Ba-Ca-Cu-O superconductive material which can obtain a stable superconducting state and a method of preparing the same, the oxide superconductive material is expressed in the following composition formula:
        Tℓ x Ba₂Ca y Cu₃O z
where x, y and z are in relations satisfying 1.5 ≦ x ≦ 2.0, 2.0 ≦ y ≦ 2.5, x + y = 4.0 and 9.0 ≦ z ≦ 11.0, and comprises tetragonal system superconducting phases having lattice constants of a = 0.385 to 0.386 nm and c longer than 3.575 nm, to exhibit zero resistance under a temperature of at least 125 K, while the method comprises a step of mixing powder raw materials in blending ratios for satisfying the above composition formula, a step of sintering the as-formed mixed powder in an oxygen jet or in the atmosphere to obtain a sintered body, and a step of annealing the sintered body in a closed atmosphere at 700 to 800°C for at least 10 hours.

公开(公告)号：EP0516148A2

公开(公告)日：1992-12-02

申请号：EP92109097.3

申请日：1992-05-29

申请人： SUMITOMO ELECTRIC INDUSTRIES, LIMITED ,  UBE INDUSTRIES, LTD. ,  MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. ,  INTERNATIONAL SUPERCONDUCTIVITY TECHNOLOGY CENTER

发明人： Kaneko, Tetsuyuki, c/o Int.Supercond.Tech.Cent. ,  Yamauchi, Hisao, c/o Int.Supercond.Tech.Cent. ,  Tanaka, Shoji, c/o Int. Supercond. Tech. ,  Hamada, Kazuyuki, c/o Ube Industries Ltd. ,  Adachi, Seiji, c/o Matsushita Electr. Ind.Co.,Ltd.

IPC分类号： H01L39/12 ,  H01L39/24

CPC分类号： C04B35/4512 ,  H01L39/126

摘要： In order to provide a Tℓ-Ba-Ca-Cu-O superconductive material which can obtain a stable superconducting state and a method of preparing the same, the oxide superconductive material is expressed in the following composition formula:



        Tℓ x Ba₂Ca y Cu₃O z



where x, y and z are in relations satisfying 1.5 ≦ x ≦ 2.0, 2.0 ≦ y ≦ 2.5, x + y = 4.0 and 9.0 ≦ z ≦ 11.0, and comprises tetragonal system superconducting phases having lattice constants of a = 0.385 to 0.386 nm and c longer than 3.575 nm, to exhibit zero resistance under a temperature of at least 125 K, while the method comprises a step of mixing powder raw materials in blending ratios for satisfying the above composition formula, a step of sintering the as-formed mixed powder in an oxygen jet or in the atmosphere to obtain a sintered body, and a step of annealing the sintered body in a closed atmosphere at 700 to 800°C for at least 10 hours.

摘要翻译： 为了提供可以获得稳定的超导状态的T 1 -Ba-Ca-Cu-O超导材料及其制备方法，氧化物超导材料以下列组成式表示：T l xBa2CayCu3Oz其中x， y和z在满足1.5≤x≤2.0,0.0≤y≤2.5，x + y = 4.0和9.0≤n≤11.0的关系中，并且包括四方晶系超导相，其具有 晶格常数a = 0.385〜0.386nm，c大于3.575nm，在至少125K的温度下显示零电阻，而该方法包括以满足上述组成式的混合比混合粉末原料的步骤， 在氧射流或大气中烧结所形成的混合粉末以获得烧结体的步骤，以及在700〜800℃的密闭气氛中烧结体退火至少10小时的工序。