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    LOW RESISTANCE SPLICE FOR HIGH TEMPERATURE SUPERCONDUCTOR WIRES
    1.
    发明申请
    LOW RESISTANCE SPLICE FOR HIGH TEMPERATURE SUPERCONDUCTOR WIRES 有权
    用于高温超导体线的低电阻极限

    公开(公告)号：US20120010084A1

    公开(公告)日：2012-01-12

    申请号：US13236824

    申请日：2011-09-20

    Applicant: Alexander Otto ,  Eric R. Podtburg

    Inventor： Alexander Otto ,  Eric R. Podtburg

    IPC: H01B12/02

    CPC classification number: H01L39/02 ,  Y10S505/927

    Abstract: Under one aspect, a laminated, spliced superconductor wire includes a superconductor joint, which includes (i) first and second superconductor wires, each wire including a substrate, a superconductor layer overlying the substrate, and a cap layer overlying the superconductor layer; and (ii) a conductive bridge, the conductive bridge including a substrate, a superconductor layer overlying the substrate, and a cap layer overlying the superconductor layer, wherein the cap layer of the conductive bridge is in electrically conductive contact with a portion of the cap layer of each of the first and second superconductor wires through an electrically conductive bonding material. The spliced wire also includes (b) a stabilizer structure surrounding at least a portion of the superconductor joint, wherein the superconductor joint is in electrical contact with the stabilizer structure; and (c) a substantially nonporous electrically conductive filler, wherein the filler substantially surrounds the superconductor joint.

    Abstract translation: 在一个方面，层压的接合超导体线包括超导体接头，其包括（i）第一和第二超导体线，每根线包括衬底，覆盖衬底的超导体层和覆盖超导体层的覆盖层; 和（ii）导电桥，所述导电桥包括衬底，覆盖所述衬底的超导体层和覆盖所述超导体层的覆盖层，其中所述导电桥的所述覆盖层与所述帽的一部分导电接触 每个第一和第二超导线的层通过导电接合材料。 所述拼接线还包括（b）围绕所述超导体接头的至少一部分的稳定器结构，其中所述超导体接头与所述稳定器结构电接触; 和（c）基本上无孔的导电填料，其中所述填料基本上围绕所述超导体接头。

    Method of forming BSCCO superconducting composite articles
    3.
    发明授权
    Method of forming BSCCO superconducting composite articles 失效
    形成BSCCO超导复合材料制品的方法

    公开(公告)号：US6069116A

    公开(公告)日：2000-05-30

    申请号：US927006

    申请日：1997-09-10

    Applicant: Qi Li ,  Gilbert N. Riley, Jr. ,  Lawrence J. Masur ,  Eric R. Podtburg ,  Ronald D. Parrella ,  Martin W. Rupich ,  Donald R. Parker ,  William L. Carter ,  William J. Rosati ,  Mark D. Teplitsky

    Inventor： Qi Li ,  Gilbert N. Riley, Jr. ,  Lawrence J. Masur ,  Eric R. Podtburg ,  Ronald D. Parrella ,  Martin W. Rupich ,  Donald R. Parker ,  William L. Carter ,  William J. Rosati ,  Mark D. Teplitsky

    IPC: H01L39/24

    CPC classification number: H01L39/248 ,  Y10T29/49014

    Abstract: A novel process of the production and processing of high quality, high T.sub.c BSCCO or (Bi,Pb)SCCO superconductors starts with fabrication of a forming a bundle including a plurality of billets, each billet containing at least one filament comprising a dominant amount of an tetragonal BSCCO phase with selected intermediate phases, and substantially surrounded by a constraining metal. The bundle is thermomechanically consolidated to form a multifilamentary precursor article by applying pressure and heat to the bundle under conditions cooperatively selected to cause interdiffusion of said constraining metal at the interfaces between said metal and said filaments and substantially complete elimination of voids in said bundle, and the consolidation step is completed before any high strain longitudinal deformation is performed on the bundle. The precursor article is then heated at a second selected processing temperature in an inert atmosphere with a second selected oxygen partial pressure for a second selected time period, the second processing temperature, the second time period and the second oxygen partial pressure being cooperatively selected to form a dominant amount of an orthorhombic BSCCO phase in the reacted mixture. It may then be deformed to form an elongated precursor article of a desired texture; and thereafter heated at a third selected processing temperature in an inert atmosphere with a third selected oxygen partial pressure for a third selected time period, all cooperatively selected to convert at least a portion of the orthorhombic BSCCO phase to the final superconducting BSCCO material.

    Abstract translation: 高品质，高Tc BSCCO或（Bi，Pb）SCCO超导体的生产和加工的新工艺首先制造形成包括多个坯料的束，每个坯料含有至少一根细丝，其包含显着量的 具有选定的中间相的四边形BSCCO相，并且基本上被约束金属包围。 通过热力学机械固结所述束以通过在协同选择的条件下对所述束施加压力和热量以在所述金属和所述长丝之间的界面处引起所述约束金属的相互扩散并且基本上完全消除所述束中的空隙而形成多丝前体制品，以及 在对束进行任何高应变纵向变形之前完成固结步骤。 然后将前体制品在具有第二选择的氧分压的惰性气氛中的第二选定处理温度下加热第二选定的时间段，第二处理温度，第二时间段和第二氧分压协同选择以形成 反应混合物中正交的BSCCO相的显着量。 然后可以将其变形以形成具有所需纹理的细长的前体制品; 然后在具有第三选择的氧分压的惰性气氛中在第三选定的处理温度下加热第三选定的时间段，全部协同选择以将至少一部分正交BSCCO相转化为最终超导BSCCO材料。

    METHOD FOR ANALYZING SUPERCONDUCTING WIRE
    4.
    发明申请
    METHOD FOR ANALYZING SUPERCONDUCTING WIRE 审中-公开
    分析超导线的方法

    公开(公告)号：US20100019776A1

    公开(公告)日：2010-01-28

    申请号：US12178456

    申请日：2008-07-23

    Applicant: Douglas C. Folts ,  Eric R. Podtburg ,  Robert C. Diehl

    Inventor： Douglas C. Folts ,  Eric R. Podtburg ,  Robert C. Diehl

    IPC: G01R31/02 ,  H01B12/02

    CPC classification number: G01R33/1246 ,  G01R31/022

    Abstract: The present disclosure relates to a system and method for analyzing a superconducting wire. A method in accordance with at least one embodiment described herein may include performing a voltage/current (VI) test for each of a plurality of portions of superconducting wire. The VI test may include determining a plurality of VI data points for each of the plurality of portions of superconducting wire at a first VI datapoint of about (Ic (critical current), Ec (critical electric field)) and at a second VI datapoint of about (Ix, Ex). Ex may be at least 10 times Ec and Ix may be approximately equal to the current resulting at that voltage drop. The method may further include analyzing the plurality of VI data points for each portion of superconducting wire to determine if one or more of the portions of superconducting wire are defective. Of course, numerous other embodiments are also within the scope of the present disclosure.

    Abstract translation: 本公开涉及一种用于分析超导线的系统和方法。 根据本文所述的至少一个实施例的方法可以包括对超导线的多个部分中的每一个执行电压/电流（VI）测试。 VI测试可以包括在大约（Ic（临界电流），Ec（临界电场））的第一VI数据点处以及在第六VI数据点处的第二VI数据点 约（Ix，Ex）。 Ex可以是Ec的至少10倍，并且Ix可以近似等于导致该电压降的电流。 该方法还可以包括分析超导线的每个部分的多个VI数据点，以确定超导线中的一个或多个部分是否有缺陷。 当然，许多其他实施例也在本公开的范围内。

    Strongly-linked oxide superconductor and a method of its manufacture
    5.
    发明授权
    Strongly-linked oxide superconductor and a method of its manufacture 失效
    强连接氧化物超导体及其制造方法

    公开(公告)号：US06310297B1

    公开(公告)日：2001-10-30

    申请号：US08477456

    申请日：1995-06-07

    Applicant: Lawrence J. Masur ,  Eric R. Podtburg

    Inventor： Lawrence J. Masur ,  Eric R. Podtburg

    IPC: H01B1200

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

    Abstract: A strongly-linked polycrystalline oxide superconductor article includes an oxide superconductor selected from the group consisting 124-type and 247-type oxide superconductors having fine, highly aligned oxide superconductor grains less than &mgr;m long 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.

    Abstract translation: 强连接的多晶氧化物超导体制品包括选自124型和247型氧化物超导体的氧化物超导体，其具有小于长度最长尺寸的妈妈的精细高度排列的氧化物超导体晶粒。 氧化物超导体制品在0.1特斯拉场中具有至少25％的临界电流密度保留。 一种制备强连接的氧化物超导体的方法包括使细分的氧化物超导体的金属前体成形; 氧化细碎的金属前体以产生细碎的亚氧化物物质，同时避免将大量的次氧化物物质转化为氧化物超导体，退火和使制品变形，以任何顺序，在温度下进行退火 并且足以将一些氧化物物质转化为氧化物超导体的细晶粒的时间，从而形成次氧化物种类和氧化物超导体的混合物，并进行变形，使得氧化物超导体的细晶粒旋转成对准 平行于制品的预期电流输送方向，而不会破坏或粉碎氧化物超导体晶粒; 交替退火和变形，直到观察不到进一步改善; 并使对准的晶粒进行最终退火，以使任何剩余的亚氧化物物质反应并使现有对准晶粒的生长和烧结最大化。

    High pressure oxidation of precursor alloys
    7.
    发明授权
    High pressure oxidation of precursor alloys 失效
    前体合金的高压氧化

    公开(公告)号：US5472527A

    公开(公告)日：1995-12-05

    申请号：US82093

    申请日：1993-06-24

    Applicant: Alexander Otto ,  Lawrence J. Masur ,  Eric R. Podtburg ,  Kenneth H. Sandhage

    Inventor： Alexander Otto ,  Lawrence J. Masur ,  Eric R. Podtburg ,  Kenneth H. Sandhage

    IPC: C04B35/45 ,  C04B35/65 ,  H01L39/24 ,  H01B17/00 ,  H01B1/08

    CPC classification number: H01L39/248 ,  C04B35/45 ,  C04B35/65 ,  Y10S148/035 ,  Y10S428/93 ,  Y10S505/704 ,  Y10S505/736 ,  Y10S505/785

    Abstract: A method for forming unsegregated metal oxide-silver composites includes preparing a precursor alloy comprising silver and precursor elements of a desired metal oxide and oxidizing the alloy under conditions of high oxygen activity selected to permit diffusion of oxygen into silver while significantly restricting the diffusion of the precursor elements into silver, such that oxidation of the precursor elements to the metal oxide occurs before diffusion of the metallic elements into silver. Further processing of the metal oxide composite affords an oxide superconducting composite with a highly unsegregated microstructure.

    Abstract translation: 用于形成未分离的金属氧化物 - 银复合物的方法包括制备包含银的前体合金和期望的金属氧化物的前体元素，并在选择高氧活性的条件下氧化合金，以允许氧扩散到银中，同时显着地限制 前体元素变成银，使得在将金属元素扩散到银之前，前体元素氧化成金属氧化物。 金属氧化物复合物的进一步处理提供具有高度未偏析的微结构的氧化物超导复合材料。

    Processing of (Bi,Pb)SCCO superconductor in wires and tapes
    9.
    发明授权
    Processing of (Bi,Pb)SCCO superconductor in wires and tapes 失效
    （Bi，Pb）SCCO超导体在电线和磁带中的处理

    公开(公告)号：US06311386B1

    公开(公告)日：2001-11-06

    申请号：US09358245

    申请日：1999-07-21

    Applicant: Qi Li ,  Eric R. Podtburg ,  Patrick John Walsh ,  William L. Carter ,  Gilbert N. Riley, Jr. ,  Martin W. Rupich ,  Elliott Thompson ,  Alexander Otto

    Inventor： Qi Li ,  Eric R. Podtburg ,  Patrick John Walsh ,  William L. Carter ,  Gilbert N. Riley, Jr. ,  Martin W. Rupich ,  Elliott Thompson ,  Alexander Otto

    IPC: H01L3929

    CPC classification number: C04B35/4521 ,  C04B35/4525 ,  C04B35/65 ,  H01L39/2419 ,  H01L39/248 ,  Y10S505/739 ,  Y10S505/74 ,  Y10S505/742 ,  Y10T29/49014

    Abstract: A novel process of the production and processing of high quality, high Tc (Bi,Pb)SCCO superconductors starts with fabrication of a precursor article including selected intermediate phases with desired chemical and structural properties. The precursor fabrication includes introducing the reacted mixture having a dominant amount of the tetragonal BSCCO phase into a metal sheath, and sealing the reacted mixture within said sheath, heating the mixture at a second selected processing temperature in an inert atmosphere with a second selected oxygen partial pressure for a second selected time period, the second processing temperature and the second oxygen partial pressure being cooperatively selected to form a dominant amount of an orthorhombic BSCCO phase in the reacted mixture. The sealed sheath is deformed to form an elongated precursor article of a desired texture; and thereafter heated at a third selected processing temperature in an inert atmosphere with a third selected oxygen partial pressure for a third selected time period. The third processing temperature and third oxygen partial pressure are cooperatively selected to convert at least a portion of the orthorhombic BSCCO phase to the final superconducting BSCCO material.

    Abstract translation: 高品质，高Tc（Bi，Pb）SCCO超导体的生产和加工的新工艺首先制造包含所需化学和结构性质的选定中间相的前体制品。 前体制备包括将具有显着量的四边形BSCCO相的反应混合物引入金属护套中，并将反应的混合物密封在所述护套内，在第二选择的加工温度下在惰性气氛中加热第二选择的氧部分 第二选择时间段的压力，第二加工温度和第二氧分压协同选择以形成反应混合物中正交BSCCO相的显着量。 密封的鞘被变形以形成具有所需纹理的细长的前体制品; 然后在具有第三选择的氧分压的惰性气氛中在第三选择的处理温度下加热第三选定时间段。 协调选择第三加工温度和第三氧分压以将正交BSCCO相的至少一部分转化为最终超导BSCCO材料。

    Performance of oxide dispersion strengthened superconductor composites
    10.
    发明授权
    Performance of oxide dispersion strengthened superconductor composites 失效
    氧化物分散强化超导体复合材料的性能

    公开(公告)号：US06305070B1

    公开(公告)日：2001-10-23

    申请号：US08731302

    申请日：1996-10-15

    Applicant: Lawrence J. Masur ,  Donald R. Parker ,  Eric R. Podtburg ,  Peter R. Roberts ,  Ronald D. Parrella ,  Gilbert N. Riley, Jr. ,  Steven Hancock

    Inventor： Lawrence J. Masur ,  Donald R. Parker ,  Eric R. Podtburg ,  Peter R. Roberts ,  Ronald D. Parrella ,  Gilbert N. Riley, Jr. ,  Steven Hancock

    IPC: H01L3924

    CPC classification number: H01L39/248 ,  Y10S505/742 ,  Y10T29/49014

    Abstract: The invention features high performing composite superconducting oxide articles that can be produced from OPIT precursors substantially without poisoning the superconductor. In general, the superconducting oxide is substantially surrounded by a matrix material. The matrix material contains a first constraining material including a noble metal and a second metal. The second metal is a relatively reducing metal which lowers the overall oxygen activity of the matrix material and the article at a precursor process point prior to oxidation of the second metal. The second metal is substantially converted to a metal oxide dispersed in the matrix during or prior to a first phase conversion heat treatment but after formation of the composite, creating an ODS matrix.

    Abstract translation: 本发明的特征在于高性能复合超导氧化物制品，其可以从OPIT前体生产，而不会使超导体中毒。 通常，超导氧化物基本上被基质材料包围。 基质材料含有包含贵金属和第二金属的第一约束材料。 第二种金属是相对还原的金属，其降低了在第二金属氧化之前的前体工艺点处的基质材料和制品的整体氧活性。 在第一相转化热处理期间或之前，第二金属基本上转化为分散在基质中的金属氧化物，但是在形成复合材料之后，形成ODS基体。

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