利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

5 条记录 (耗时 0.016 秒)

    Method for the preparation of brittle superconducting material in ultrafine particle form
    1.
    发明授权
    Method for the preparation of brittle superconducting material in ultrafine particle form 失效
    以超细颗粒形式制备脆性超导材料的方法

    公开(公告)号：US4419125A

    公开(公告)日：1983-12-06

    申请号：US436103

    申请日：1982-10-22

    申请人： Robert G. Charles ,  John R. Gavaler

    发明人： Robert G. Charles ,  John R. Gavaler

    IPC分类号： H01L39/12 ,  H01L39/24

    CPC分类号： H01L39/2409 ,  H01L39/12 ,  H01L39/2412 ,  H01L39/2416 ,  Y10S505/807 ,  Y10S505/815 ,  Y10S75/953 ,  Y10T29/49014

    摘要： This is a method for preparing submicron-superconducting particles for use in forming a ductile superconductor wire from brittle superconducting compounds. The method utilizes preparing a mixture of solid metal halides containing essentially stoichiometric proportions of metallic components for the desired superconducting compound, co-reducing the mixture with an excess of liquid alkali metal, removing the alkali metal halide produced and the excess alkali metal from the superconducting powder, and annealing the superconducting powder to substantially remove absorbed hydrogen as indicated by the reduction of lattice parameters to essentially nominal values.

    摘要翻译： 这是一种制备用于从脆性超导化合物形成延性超导线的亚微米超导颗粒的方法。 该方法利用制备含有基本上化学计量比的用于所需超导化合物的化学计量比的金属组分的固体金属卤化物的混合物，用过量的液态碱金属共同还原混合物，从超导中除去产生的碱金属卤化物和过量的碱金属 粉末，并退火超导粉末以基本上除去吸收的氢，如由晶格参数的降低至基本上标称值所示。

    Superconducting Josephson junctions
    3.
    发明授权
    Superconducting Josephson junctions 失效
    超导约瑟夫森路口

    公开(公告)号：US4768069A

    公开(公告)日：1988-08-30

    申请号：US30003

    申请日：1987-03-23

    申请人： John J. Talvacchio ,  Alexander I. Braginski ,  Michael A. Janocko ,  John R. Gavaler

    发明人： John J. Talvacchio ,  Alexander I. Braginski ,  Michael A. Janocko ,  John R. Gavaler

    IPC分类号： H01L39/22 ,  H01L39/24

    CPC分类号： H01L39/2493 ,  H01L39/223

    摘要： Disclosed is a superconducting Josephson junction which comprises a layer of niobium nitride on a substrate, an epitaxial layer of a pseudo-binary compound on the layer of niobium nitride, where the pseudo-binary compound has the composition about 3 atomic percent MgO--about 97 atomic percent CaO, to about 97 atomic percent MgO--about 3 atomic percent CaO, and an epitaxial layer of niobium nitride on the layer of pseudo-binary compound. Also disclosed is a method of making a Josephson junction by depositing a layer of niobium nitride onto a suitable substrate, depositing an expitaxial layer of a pseudo-binary compound onto the layer of niobium nitride, where the pseudo-binary compound has a composition of about 3 atomic percent MgO--about 97 atomic percent CaO, to about 97 atomic percent MgO--about 3 atomic percent CaO, and depositing an epitaxial layer of niobium nitride onto the layer said pseudo-binary compound.

    Method and apparatus utilizing crystalline compound superconducting elements having extended strain operating range capabilities without critical current degradation
    4.
    发明授权
    Method and apparatus utilizing crystalline compound superconducting elements having extended strain operating range capabilities without critical current degradation 失效
    使用结晶化合物超导元件的方法和装置，其具有扩展的应变工作范围能力，而没有临界电流退化

    公开(公告)号：US4437080A

    公开(公告)日：1984-03-13

    申请号：US465942

    申请日：1983-02-14

    申请人： John W. Ekin ,  John R. Gavaler ,  Aleksander I. Braginski

    发明人： John W. Ekin ,  John R. Gavaler ,  Aleksander I. Braginski

    IPC分类号： H01F6/06 ,  H01L39/14 ,  H01F7/22

    CPC分类号： H01F6/06 ,  H01L39/14 ,  Y10S505/887

    摘要： Method and apparatus are disclosed utilizing superconducting elements with extended strain operating range capabilities. The superconducting element is formed from a crystalline compound superconductive material that does not exhibit appreciable critical current degradation in the presence of high elastic strains imposed on the element. Such a crystalline compound superconductive material is selected from materials in the B1 and C15 crystal structure classes. The thus formed superconducting element is particularly useful in electromagnets requiring high magnetic fields for operation in the intended manner.

    摘要翻译： 公开了利用具有扩展应变工作范围能力的超导元件的方法和装置。 超导元件由结晶化合物超导材料形成，其在施加在元件上的高弹性应变的存在下不表现出明显的临界电流降解。 这种结晶化合物超导材料选自B1和C15晶体结构类别的材料。 如此形成的超导元件在需要高磁场以用于预期方式操作的电磁体中特别有用。