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    HOCH-Tc-SUPRALEITER UND VERFAHREN ZU SEINER HERSTELLUNG
    13.
    发明授权
    HOCH-Tc-SUPRALEITER UND VERFAHREN ZU SEINER HERSTELLUNG 失效
    高温超导体及其制造方法。

    公开(公告)号：EP0402371B1

    公开(公告)日：1995-05-24

    申请号：EP89902518.3

    申请日：1989-02-22

    申请人： HOECHST AKTIENGESELLSCHAFT

    发明人： MAIER, Joachim ,  RABENAU, Albrecht ,  MURUGARAJ, Pandijan

    IPC分类号： H01L39/12 ,  H01L39/24 ,  C04B35/00

    CPC分类号： H01L39/126 ,  C04B35/4504 ,  C04B35/4521 ,  H01L39/2419 ,  Y10S505/725 ,  Y10S505/775 ,  Y10S505/78 ,  Y10S505/785

    摘要： Polycrystalline high-Tc superconductors of general formula MmEeROx, composed of essentially crystallographically oriented granules, in which M is at least a trivalent element, such as a lanthanide, E is at least a divalent element, such as an alkaline earth element, R is at least a transition metal, such as Cu, and x is the oxygen content, are prepared by substituting some of the alkaline earth element by a foreign element, preferably an alkaline element, the content of which, after reaction sintering and sintering, will no longer lie in the parts per million to parts per thousand range and which will bring about a change of orientation. The resulting material has a slightly lower E and possibly M content and the same transition temperature, and has a substantially greater stability to external influences than corresponding known materials. A subsequent treatment in a current of air or oxygen is not necessary. Monocrystals of relatively large dimensions can also be prepared in the same way.

    STRONGLY-LINKED OXIDE SUPERCONDUCTOR AND A METHOD OF ITS MANUFACTURE
    14.
    发明公开
    STRONGLY-LINKED OXIDE SUPERCONDUCTOR AND A METHOD OF ITS MANUFACTURE 失效
    STRONG交联氧化物超导体及其制造方法。

    公开(公告)号：EP0640249A1

    公开(公告)日：1995-03-01

    申请号：EP93910615.0

    申请日：1993-04-13

    申请人： AMERICAN SUPERCONDUCTOR CORPORATION

    发明人： MASUR, Lawrence, J. ,  PODTBURG, Eric, R.

    IPC分类号： C01G1 ,  C01G3 ,  C04B35 ,  H01B13 ,  H01L39

    CPC分类号： C04B35/65 ,  C04B35/45 ,  H01L39/2419 ,  H01L39/2477 ,  Y10S505/704 ,  Y10S505/736 ,  Y10S505/74 ,  Y10S505/742 ,  Y10S505/776 ,  Y10S505/78 ,  Y10S505/813 ,  Y10T29/49014

    摘要： A strongly-linked polycrystalline oxide superconductor article includes an oxide superconductor selected from the group consisting of 124-type and 247-type oxide superconductors having fine, highly aligned oxide superconductor grains less than 50 νm along a longest dimension. The oxide superconductor article has at least a 25 % retention of critical current density in a 0.1 Tesla field. A method for preparing a strongly-linked oxide superconductor includes shaping a finely divided metallic precursor of an oxide superconductor; oxidizing the finely divided metallic precursor to produce a finely divided sub-oxide species while avoiding conversion of an appreciable amount of the sub-oxide species into the oxide superconductor; annealing and deforming the article, in either order, the annealing carried out at a temperature and for a time sufficient to convert some of the sub-oxide species into fine grains of the oxide superconductor thereby forming a mixture of sub-oxide species and oxide superconductor and the deformation carried out such that the fine grains of oxide superconductor are rotated into alignment parallel to an intended current carrying direction of the article without fracturing or pulverization of the oxide superconductor grains; alternating annealing and deformation of the article until no further improvement in alignment is observed; and subjecting the aligned grains to a final anneal in order to react any remaining sub-oxide species and maximize the growth and sintering of existing aligned grains.

    Process for the manufacture of powders for superconductive ceramic materials
    16.
    发明公开
    Process for the manufacture of powders for superconductive ceramic materials 失效
    Verfahren zur Herstellung von Pulvernfürsupraleitende keramische Materialien。

    公开(公告)号：EP0524586A1

    公开(公告)日：1993-01-27

    申请号：EP92112393.1

    申请日：1992-07-20

    申请人： CENTRO SVILUPPO MATERIALI S.p.A.

    发明人： Fortunati, Stefano ,  Tului, Mario ,  Risso, Luca

    IPC分类号： C01G3/00 ,  C01B13/32 ,  C04B35/00 ,  C04B35/65

    CPC分类号： C01G3/006 ,  C01P2006/80 ,  C04B35/4508 ,  Y10S505/78

    摘要： A process for the pyrolysis of YBCO powders, characterized by the preparation of a clear aqueous solution containing the ions yttrium, barium and copper, in the final proportions desired for the powder, in the form of complex compounds, preferably citric complex compounds, and in the presence of a detonating system, like for instance a combination of ammonium ions and of nitrate ions.
    The clear solution is then made to concentrate by means of evaporation, until triggering a violent combustion which is carried out at a high temperature, higher than 250°C and preferably higher than 850°C.

    摘要翻译： YBCO粉末的热解方法，其特征在于以络合物，优选柠檬酸络合物的形式，以所需粉末的最终比例制备含有离子钇，钡和铜的透明水溶液，并且在 引爆系统的存在，例如铵离子和硝酸根离子的组合。 然后将透明溶液通过蒸发浓缩，直到引发在高于250℃，优选高于850℃的高温下进行的剧烈燃烧。

    Structure de jonction Josephson
    17.
    发明公开
    Structure de jonction Josephson 失效
    Josephsonjunctionstruktur。

    公开(公告)号：EP0511056A1

    公开(公告)日：1992-10-28

    申请号：EP92401079.6

    申请日：1992-04-17

    申请人： THOMSON-CSF

    发明人： Cabanel, Régis ,  Garry, Guy ,  Schuhl, Alain ,  Ghyselen, Bruno

    IPC分类号： H01L39/22

    CPC分类号： H01L39/225 ,  Y10S505/70 ,  Y10S505/702 ,  Y10S505/779 ,  Y10S505/78 ,  Y10S505/874

    摘要： L'invention concerne une jonction Josephson, formée d'une barrière (10) non-supraconductrice entre deux films (9 et 11) supraconducteurs, de la famille des (TR) BaCuO (TR = terre rare).
    Afin de profiter de la plus grande longueur de cohérence des supraconducteurs le long des plans CuO, soit perpendiculairement au grand axe "c" de la maille cristalline, le film supraconducteur (9) est orienté de façon que l'axe "c" soit parallèle au plan de la jonction.
    Application à l'électronique à jonctions Josephson et aux SQUIDs.

    摘要翻译： 本发明涉及由来自（RE）BaCuO（RE =稀土）的族的两个超导膜（9和11）之间的非超导屏障（10）形成的约瑟夫逊结。 为了从CuO平面（即垂直于晶格的长轴“c”）的超导体的最大相干长度获益，超导膜（9）被定向成使得轴线“c”平行于平面 的交界处。 适用于约瑟夫逊连接电子和SQUID。

    Oxide superconductors and method for producing same
    18.
    发明公开
    Oxide superconductors and method for producing same 失效
    Oxidische Supraleiter和Verfahren zu ihrer Herstellung。

    公开(公告)号：EP0476504A1

    公开(公告)日：1992-03-25

    申请号：EP91115377.3

    申请日：1991-09-11

    申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. ,  TOHOKU ELECTRIC POWER CO., INC. ,  CENTRAL RESEARCH INSTITUTE OF ELECTRIC POWER INDUSTRY ,  THE TOKYO ELECTRIC POWER CO., INC. ,  INTERNATIONAL SUPERCONDUCTIVITY TECHNOLOGY CENTER

    发明人： Wada, Takahiro ,  Yaegashi, Yuji, Tohoku Denryoku Benkyoso ,  Ichinose, Ataru ,  Suzuki, Nobuo ,  Yamauchi, Hisao ,  Tanaka, Shoji

    IPC分类号： C04B35/00 ,  H01L39/24

    CPC分类号： C04B35/4504 ,  H01L39/2419 ,  Y10S505/779 ,  Y10S505/78

    摘要： The present invention provides an oxide superconductor which has a relatively high transition temperature T c . This superconductor has the chemical formula (R 1-x Ca x )(Ba 1-y Sr y )₂Cu₃O 7-z wherein R is at least one rare earth element selected from the group consisting of Tm, Yb and Lu, x is within the range of 0.1 ≦ x ≦ 0.5, y is within the range of 0.1 ≦ y ≦ 0.4 and z is within the range of 0.05 ≦ z ≦ (x/2 + 0.5). The invention further provides a method for producing the oxide superconductor which comprises firing a composition of the formula (R 1-x Ca x )(Ba 1-y Sr y )₂Cu₃O 7-z wherein R is at least one rare earth element selected from the group consisting of Tm, Yb and Lu, x is within the range of 0.1 ≦ x ≦ 0.5 and y is within the range of 0.1 ≦ y ≦ 0.4 at a temperature of from 750°C to the melting temperature of the composition under an oxygen partial pressure P(O₂) of 0.001 atm ≦ P(O₂) ≦ 0.2 atm and then heat treating the composition to adjust the oxygen loss z to 0.05 ≦ z ≦ (x/2 + 0.5).

    摘要翻译： 本发明提供一种具有较高转变温度Tc的氧化物超导体。 该超导体具有化学式（R1-xCax）（Ba1-ySry）2Cu3O7-z，其中R是选自Tm，Yb和Lu中的至少一种稀土元素，x在0.1〜 x <0.5，y在0.1≤y≤0.4的范围内，z在0.05≤z≤（x / 2 + 0.5）的范围内。 本发明还提供了一种制备氧化物超导体的方法，其包括焙烧式（R1-xCax）（Ba1-ySry）2Cu3O7-z的组合物，其中R是选自Tm，Yb中的至少一种稀土元素 并且在750℃的温度下，Lu，x在0.1≤x≤0.5的范围内，y在0.1≤y≤0.4的范围内，相对于组合物的熔融温度 0.001atm的氧分压P（O 2）= P（O 2）≤0.2atm，然后热处理该组合物以将氧损失z调节至0.05≤z≤（x / 2 + 0.5） ）。

    Method of fabricating a YBaCuO superconducting epitaxial-like thin film
    19.
    发明公开
    Method of fabricating a YBaCuO superconducting epitaxial-like thin film 失效
    超导适应层和准外延方法，让他们成长起来。

    公开(公告)号：EP0472159A1

    公开(公告)日：1992-02-26

    申请号：EP91113927.7

    申请日：1991-08-20

    申请人： ENERGY CONVERSION DEVICES, INC.

    发明人： Ovshinsky, Stanford R. ,  Young, Rosa

    IPC分类号： H01L39/24

    CPC分类号： C23C14/28 ,  C23C14/087 ,  H01L39/2448 ,  Y10S505/731 ,  Y10S505/78

    摘要： 5n7 A thin film, fluorinated, ceramic defect-oxide type superconducting, epitaxial-like material grown on a non- epitaxial substrate, such as sapphire or stainless steel. The superconducting material is characterized by basal plane alignment of the unit cells thereof even though the substrate does not possess perovskite-type lattice structure. A laser ablation technique is used to evaporate material from a fluorinated pellet of target material to deposit the fluorinated superconducting material on the substrate. The instant invention provides for a low pressure and relatively low temperature method of depositing a superconducting film which is characterized by (1) a minimal number of high angle grain boundaries typically associated with polycrystalline films, and (2) aligned a, b, and c axes of the unit cells thereof so as to provide for enhanced current carrying capacities. Large area, irregularly shaped and rolls of inexpensive substrate material can be uniformly covered by the method described herein.

    摘要翻译： 一种薄膜，氟化的，陶瓷缺陷氧化物型超导外延状材料上生长的非外延基板：诸如蓝宝石或不锈钢。 超导材料是由单元电池的基底面取向，即使其在基板不具有钙钛矿型晶格结构特征的。 的激光烧蚀技术被用于从靶材料的氟化粒料蒸发材料在基板上沉积氟化超导材料。 本发明提供用于低压力和沉积超导薄膜的所有其由（1）通常，使用多晶薄膜相关的高角度晶界的最小数目为特征的相对低的温度的方法，和（2）对齐的a，b，和c 单元电池的轴处，从而提供增强的载流容量。 面积大，不规则形状的和廉价的基片材料卷可以通过在所描述的方法均匀地覆盖。