公开(公告)号：US06670308B2

公开(公告)日：2003-12-30

申请号：US10101218

申请日：2002-03-19

Applicant: Amit Goyal

Inventor： Amit Goyal

IPC: H01L3924

CPC classification number: C30B29/02 ,  C23C18/1635 ,  C25D5/34 ,  C25D7/00 ,  C25D7/001 ,  C30B7/005 ,  C30B7/12 ,  C30B23/02 ,  C30B29/22 ,  H01L39/2461 ,  Y10S505/739

Abstract: An epitaxial article and method for forming the same includes a substrate having a textured surface, and an electrochemically deposited substantially single orientation epitaxial layer disposed on and in contact with the textured surface. The epitaxial article can include an electromagnetically active layer and an epitaxial buffer layer. The electromagnetically active layer and epitaxial buffer layer can also be deposited electrochemically.

Abstract translation: 外延制品及其形成方法包括具有纹理化表面的基底和设置在纹理化表面上并与织构表面接触的电化学沉积的基本单取向外延层。 外延制品可以包括电磁有源层和外延缓冲层。 电磁活性层和外延缓冲层也可以电化学沉积。

公开(公告)号：US06571453B1

公开(公告)日：2003-06-03

申请号：US09591456

申请日：2000-06-09

Applicant: Stefan Kautz ,  Bernhard Fischer ,  Bernhard Roas ,  Manfred Kühnl

Inventor： Stefan Kautz ,  Bernhard Fischer ,  Bernhard Roas ,  Manfred Kühnl

IPC: H01L3924

CPC classification number: H01B12/04 ,  H01L39/248 ,  Y02E40/641 ,  Y10S505/928 ,  Y10T29/49014

Abstract: A method for producing a high-Tc superconductor having a strip shape and having at least one superconductive conductor core by forming a conductor initial product and annealing. The forming is in this case intended to include at least two flattening steps. A flattening step which follows a preceding flattening step is intended to result in the percentage thickness reduction in the cross section of the at least one conductor core being greater than that from the preceding flattening step. The strip conductor produced in this way advantageously has a plurality of conductor cores that are embedded in a Ag material and are composed of a bi-cuprate.

Abstract translation: 一种通过形成导体初始产品和退火来制造具有带状并具有至少一个超导导体芯的高Tc超导体的方法。 在这种情况下，成形是要包括至少两个平整步骤。 在前面的平坦化步骤之后的平坦化步骤旨在导致至少一个导体芯的横截面的厚度减小百分比大于来自前一平面化步骤的厚度的减小百分比。 以这种方式制造的带状导体有利地具有嵌入Ag材料中的多个导体芯，并且由双铜酸盐组成。

公开(公告)号：US06569812B2

公开(公告)日：2003-05-27

申请号：US09995409

申请日：2001-11-26

Applicant: Kazuo Watanabe ,  Mitsuhiro Motokawa

Inventor： Kazuo Watanabe ,  Mitsuhiro Motokawa

IPC: H01L3924

CPC classification number: H01L39/2438

Abstract: A polycrystalline silver member is stuck on a given long member made of Hastelloy material or stainless steel material, to make a long base material. Then, an yttrium-based high temperature superconducting film is fabricated in the long base material by a CVD method with applying a magnetic field of preferable 2T or over. Thereby, an yttrium-based high temperature superconducting tape can be provided which can maintain the superconductivity under a higher magnetic field environment.

公开(公告)号：US06555504B1

公开(公告)日：2003-04-29

申请号：US09673256

申请日：2000-10-25

Applicant: Naoki Ayai ,  Nobuhiro Saga ,  Kazuhiko Hayashi

Inventor： Naoki Ayai ,  Nobuhiro Saga ,  Kazuhiko Hayashi

IPC: H01L3924

CPC classification number: H01L39/248 ,  H01B12/10 ,  H01F2027/2819 ,  H01L39/143 ,  Y02E40/644

Abstract: An oxide superconducting wire includes oxide superconducting filaments 1, a matrix 2, a covering layer 3, and an insulating layer 4. The matrix 2 is placed so as to enclose the oxide superconducting filaments 1 and is made of silver. The covering layer 3 is placed so as to enclose the matrix 2, contains silver and manganese, and has a thickness of 10 &mgr;m to 50 &mgr;m. The insulating layer 4 is placed so as to enclose the covering layer 3.

Abstract translation: 氧化物超导线包括氧化物超导细丝1，基体2，覆盖层3和绝缘层4.基体2被放置成包围氧化物超导细丝1并由银制成。 将覆盖层3放置成包围基体2，包含银和锰，并且具有10μm〜50μm的厚度。 绝缘层4被放置成包围覆盖层3。

公开(公告)号：US06511943B1

公开(公告)日：2003-01-28

申请号：US10096774

申请日：2002-03-13

Applicant: Adriana C. Serquis ,  Yuntian T. Zhu ,  Frederick M. Mueller ,  Dean E. Peterson ,  Xiao Zhou Liao

Inventor： Adriana C. Serquis ,  Yuntian T. Zhu ,  Frederick M. Mueller ,  Dean E. Peterson ,  Xiao Zhou Liao

IPC: H01L3924

CPC classification number: C04B35/6455 ,  C01B35/04 ,  C04B35/58057 ,  C04B2235/3206 ,  C04B2235/658 ,  C04B2235/6584 ,  C04B2235/72 ,  C04B2235/785 ,  C04B2235/786 ,  C04B2235/79 ,  C04B2235/80 ,  C04B2235/85 ,  H01L39/2487 ,  Y10S420/901 ,  Y10S505/736 ,  Y10S505/805

Abstract: A process of preparing superconducting magnesium diboride powder by heating an admixture of solid magnesium and amorphous boron powder or pellet under an inert atmosphere in a Mg:B ratio of greater than about 0.6:1 at temperatures and for time sufficient to form said superconducting magnesium diboride. The process can further include exposure to residual oxygen at high synthesis temperatures followed by slow cooling. In the cooling process oxygen atoms dissolved into MgB2 segregated to form nanometer-sized coherent Mg(B,O) precipitates in the MgB2 matrix, which can act as flux pinning centers.

Abstract translation: 一种制备超导二硼化镁粉末的方法，该方法是在惰性气氛下，在Mg：B比大于约0.6:1的温度下加热固体镁和无定形硼粉或颗粒的混合物，并足以形成所述超导二硼化镁 。 该方法还可以包括在高合成温度下暴露于残余氧，然后缓慢冷却。 在冷却过程中，溶解在MgB2中的氧原子在MgB2基体中分离形成纳米尺度的一致的Mg（B，O）析出物，可以作为磁通钉扎中心。

公开(公告)号：US06272730B1

公开(公告)日：2001-08-14

申请号：US08653435

申请日：1996-05-24

Applicant: Laura Gherardi ,  Paola Caracino

Inventor： Laura Gherardi ,  Paola Caracino

IPC: H01L3924

CPC classification number: H01L39/248 ,  Y10T29/49014

Abstract: A process for producing a multifilamentary conductive tape of the type including a plurality of layers of a high-temperature superconducting material, incorporated in a mutually spaced relationship within a metal matrix, includes the steps of: a) submitting to plastic deformation individual metal tubes including a precursor of a superconducting material, so as to obtain a plurality of elementary tapes structurally independent from one another; b) coupling the tapes so obtained by means of a heat treatment at a temperature and for a time sufficient to establish a stable mutual connection between said tapes. The multifilamentary tape so obtained or possibly the independent tapes, are then subjected to at least one sintering step, which may be followed by one or more cycles of plastic deformation and sintering. Advantageously, the process of the invention allows to increase the fill factor of the tape, with a corresponding increase in the critical current in superconductivity conditions.

Abstract translation: 一种制造这种类型的复丝导电胶带的方法，该复丝导电胶带包括在金属基质中以相互间隔的关系结合的多层高温超导材料，包括以下步骤：a）将塑料变形的各个金属管，包括 超导材料的前体，以便在结构上彼此独立地获得多个基本带; b）通过在足以在所述带之间建立稳定的相互连接的温度和时间的热处理来连接如此获得的带。 然后将如此获得的复丝带或可能的独立带进行至少一个烧结步骤，随后可以进行一个或多个塑性变形和烧结循环。 有利地，本发明的方法允许增加带的填充因子，同时在超导条件下临界电流的相应增加。

公开(公告)号：US06258753B1

公开(公告)日：2001-07-10

申请号：US09105118

申请日：1998-06-17

Applicant: Hans-Jurgen Bornemann ,  Thomas Burghardt ,  Wolfgang Hennig

Inventor： Hans-Jurgen Bornemann ,  Thomas Burghardt ,  Wolfgang Hennig

IPC: H01L3924

CPC classification number: F16C32/0438 ,  C04B35/4508 ,  C04B35/653 ,  F16C2360/45 ,  H01L39/2483 ,  Y10S505/733 ,  Y10S505/739 ,  Y10S505/781

Abstract: The invention concerns a process for producing optimized melt-textured volume samples based on the high temperature superconductor YBa2Cu3O7 (YBCO) for use in contact-free self-stabilizing magnetic bearings. The object of the invention is to provide a process by which structured high-temperature superconductive materials of the initially mentioned composition can be mass-produced economically in an automated process while maintaining a high degree of dimensional accuracy.

Abstract translation: 本发明涉及一种基于用于无接触自稳定磁轴承的高温超导体YBa2Cu3O7（YBCO）生产优化的熔体织构体积样品的方法。 本发明的目的是提供一种方法，其中可以在自动化过程中经济地批量生产最初提及的组合物的结构化的高温超导材料，同时保持高度的尺寸精度。

公开(公告)号：US06258472B1

公开(公告)日：2001-07-10

申请号：US09335560

申请日：1999-06-18

Applicant: Heinz-Werner Neumüller ,  Wolfgang Schmidt ,  Klaus Heinemann ,  Jörg Wiesmann ,  Jörg Hoffmann ,  Jürgen Dzick ,  Herbert-Carl Freyhardt

Inventor： Heinz-Werner Neumüller ,  Wolfgang Schmidt ,  Klaus Heinemann ,  Jörg Wiesmann ,  Jörg Hoffmann ,  Jürgen Dzick ,  Herbert-Carl Freyhardt

IPC: H01L3924

CPC classification number: H01L39/2461 ,  H01L39/16

Abstract: The invention relates to a product having a substrate of a partially stabilized zirconium oxide and a buffer layer of a fully stabilized zirconium oxide. In this case, the substrate is untextured and the buffer layer is biaxially textured and joined to the substrate via an interlayer which consists is made of a material that is different than zirconium oxide but is compatible with the latter. This product is in particular produced with ion beam-assisted deposition of the buffer layer. It is suitable in particular as a support for a functional layer of a ceramic superconductor, e.g. for use as a superconducting current limiter.

Abstract translation: 本发明涉及具有部分稳定的氧化锆的基底和完全稳定的氧化锆的缓冲层的产品。 在这种情况下，衬底是非织构的，并且缓冲层是双轴织构的，并且通过中间层连接到衬底，所述中间层由不同于氧化锆的材料制成，但与后者相容。 该产品特别是用离子束辅助沉积缓冲层制成。 特别适用于陶瓷超导体的功能层的支持，例如， 用作超导限流器。

公开(公告)号：US06247224B1

公开(公告)日：2001-06-19

申请号：US08468089

申请日：1995-06-06

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: H01L3924

CPC classification number: C22C29/12 ,  B22F3/1216 ,  B22F3/18 ,  C04B35/4521 ,  C22C5/00 ,  H01L39/248 ,  Y10S505/739 ,  Y10S505/742 ,  Y10S505/887 ,  Y10T29/49014

Abstract: A method is described to prepare a highly textured oxide superconductor article in a single deformation-sinter process. A precursor article including a plurality of filaments comprising a precursor oxide having a dominant amount of a tetragonal BSCCO 2212 phase and a constraining member substantially surrounding each of the filaments is provided. Each of the filaments extends along the length of the article. The oxide article is subjected to a heat treatment at an oxygen partial pressure and temperature selected to convert a tetragonal BSCCO 2212 oxide into an orthorhombic BSCCO 2212 oxide and, thereafter, roll worked in a high reduction draft in a range of about 40% to 95% in thickness so that the filaments have a constraining dimension is substantially equivalent to a longest dimension of the oxide superconductor grains. The rolled article is sintered to obtain a BSCCO 2223 oxide superconductor.

Abstract translation: 描述了在单个变形烧结过程中制备高度纹理的氧化物超导体制品的方法。 提供了包括多个长丝的前体制品，其包含具有显着数量的四边形BSCCO 2212相的前体氧化物和基本上围绕每个长丝的约束构件。 每个细丝沿着制品的长度延伸。 将氧化物制品在选择的氧分压和温度下进行热处理，以将四方晶BSCCO 2212氧化物转化成斜方晶BSCCO 2212氧化物，然后在约40％至95的范围内以高的还原通量进行辊加工 使得长丝的约束尺寸基本上等于氧化物超导体晶粒的最长尺寸。 将轧制制品烧结以获得BSCCO 2223氧化物超导体。

公开(公告)号：US06202287B1

公开(公告)日：2001-03-20

申请号：US08588605

申请日：1996-01-18

Applicant: Alexander Otto

Inventor： Alexander Otto

IPC: H01L3924

CPC classification number: H01L39/248 ,  Y10T29/49014

Abstract: Methods for producing biaxially aligned superconducting ceramics are disclosed. The methods include fabricating a composite precursor formed of substantially planar filaments of a superconductor precursor surrounded by a matrix, and thermomechanically processing the precursor to texture at least the interfacial layers with the matrix without converting appreciable amounts of the composite precursor to the superconducting oxide to form a preliminary filament material. The method also includes reaction texturing the preliminary filament material to form and texture a superconducting oxide. Reaction texture involves first heating at relatively low oxygen pressure, then heating at higher oxygen pressure.

Abstract translation: 公开了生产双轴取向超导陶瓷的方法。 所述方法包括制备由基质包围的超导体前体的基本上平面的长丝形成的复合前体，并且热机械地加工前体至少与基质界面层，而不会将相当数量的复合材料前体转变成超导氧化物以形成 预备丝材料。 该方法还包括使预制丝材料反应变形以形成和织构超导氧化物。 反应结构包括首先在相对低的氧气压力下加热，然后在较高的氧气压力下加热。