公开(公告)号：US06215072B1

公开(公告)日：2001-04-10

申请号：US08326178

申请日：1994-10-19

申请人： Jun Fujikami ,  Nobuhiro Shibuta ,  Kenichi Sato ,  Tsukushi Hara ,  Hideo Ishii

发明人： Jun Fujikami ,  Nobuhiro Shibuta ,  Kenichi Sato ,  Tsukushi Hara ,  Hideo Ishii

IPC分类号： H01B1200

CPC分类号： H01L39/248 ,  H01L39/143 ,  Y10S505/887 ,  Y10T29/49014

摘要： Provided is an oxide superconducting conductor consisting of a plurality of metal-covered multifilamentary superconducting wires which are assembled with each other. Bending is applied to the superconducting conductor for improving its critical current density. It is possible to obtain a compact superconducting conductor having higher capacity, since its critical current density is increased by such application of bending.

摘要翻译： 提供一种氧化物超导导体，其由多个彼此组装的金属覆盖的多丝超导线组成。 弯曲应用于超导导体以提高其临界电流密度。 可以获得具有较高容量的紧凑型超导导体，因为其临界电流密度通过这种施加弯曲而增加。

公开(公告)号：US06202287B1

公开(公告)日：2001-03-20

申请号：US08588605

申请日：1996-01-18

申请人： Alexander Otto

发明人： Alexander Otto

IPC分类号： H01L3924

CPC分类号： H01L39/248 ,  Y10T29/49014

摘要： 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.

摘要翻译： 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。

公开(公告)号：US06192573B1

公开(公告)日：2001-02-27

申请号：US09055287

申请日：1998-04-06

申请人： Shuji Hahakura ,  Nobuhiro Saga ,  Kazuya Ohmatsu ,  Kenichi Sato

发明人： Shuji Hahakura ,  Nobuhiro Saga ,  Kazuya Ohmatsu ,  Kenichi Sato

IPC分类号： H01L3924

CPC分类号： H01L39/248 ,  H01B12/02 ,  H01B12/10 ,  H01L39/143 ,  Y02E40/641 ,  Y02E40/644 ,  Y10S505/704 ,  Y10T29/49014

摘要： An oxide superconducting wire having a circular or substantially circular sectional shape and exhibiting a high critical current density comparable to that of a tape-shaped wire is provided. The oxide superconducting wire consists of a plurality of filaments extending along the longitudinal direction of the wire in the form of ribbons, and a stabilizer matrix covering the filaments. The aspect ratio of the width to the thickness of each filament is 4 to 40, and the thickness of each filament is 5 to 50 &mgr;m. A section of the wire is in a circular or substantially circular shape. The wire exhibits a critical current density of at least 2000 A/cm2 at a temperature of 77 K with no application of a magnetic field. It is preferable that the plurality of filaments are substantially rotation-symmetrically arranged with respect to the center of the wire. It is also preferable that a hexagonal-prismatic stabilizing matrix is provided at the center of the wire and the plurality of filaments covered with the stabilizer matrix are arranged on each side surface thereof in a layered manner. A flat stranded wire having low ac loss can be formed by such wires.

摘要翻译： 提供了一种具有圆形或基本上圆形截面形状并具有与带状线相当的临界电流密度的氧化物超导线。 氧化物超导线由沿着丝条的纵向方向延伸的多根细丝和带状的覆盖长丝的稳定剂基体组成。 每个灯丝的宽度与厚度的纵横比为4〜40，每根灯丝的厚度为5〜50μm。 线的一部分为圆形或大致圆形。 该线在77K的温度下表现出至少2000A / cm 2的临界电流密度，而不施加磁场。 优选地，所述多根细丝相对于所述线的中心基本上旋转对称地排列。 另外，优选的是，六边形棱柱形稳定基体设置在线的中心，并且以其分层的方式在其每个侧表面上布置有被稳定剂基体覆盖的多根细丝。 通过这样的导线可以形成具有低交流损耗的扁平绞线。

公开(公告)号：US06185810B1

公开(公告)日：2001-02-13

申请号：US08877880

申请日：1997-06-18

申请人： Donald U. Gubser ,  M. Ashraf Imam

发明人： Donald U. Gubser ,  M. Ashraf Imam

IPC分类号： H01L3924

CPC分类号： H01L39/248 ,  Y10T29/49014

摘要： A high temperature superconducting composite rod, wire or tape is formed by filling the open cells of a reticulated foam structure made of silver, silver alloy, gold or gold alloy with a superconducting ceramic oxide or precursor, compacting the filled structure and forming it into a rod, wire or tape and heating it to melt and/or texture the superconducting ceramic oxide. The resulting composite has continuous ligaments of metal throughout a continuous region of superconducting ceramic oxide.

摘要翻译： 通过用超导陶瓷氧化物或前体填充由银，银合金，金或金合金制成的网状泡沫结构的开孔，形成高温超导复合棒，线或带，压实填充结构并将其形成为 棒，线或带并加热以熔化和/或织构超导陶瓷氧化物。 所得复合材料在超导陶瓷氧化物的连续区域中具有连续的金属韧带。

公开(公告)号：US6154599A

公开(公告)日：2000-11-28

申请号：US97797

申请日：1998-06-16

申请人： Christopher M. Rey

发明人： Christopher M. Rey

IPC分类号： C23C28/00 ,  G02B6/02 ,  H01B12/06 ,  H01L39/24 ,  G02B6/00 ,  H01B12/00

CPC分类号： H01L39/248 ,  C23C28/00 ,  G02B6/02 ,  G02B6/02395 ,  H01B12/06 ,  H01L39/2454 ,  G02B6/4416 ,  Y02E40/642

摘要： This patent application relates to the use of thin high temperature fibers, specifically optical fibers, for use as a substrate material in the fabrication of long-length low temperature superconducting and high temperature superconducting wire. The superconducting material is deposited on the fiber using either a thin or thick film deposition technique. The fiber can have a dual use in the transmission of data using either traditional optical means or the transmission of electrical current via the deposited superconductor. A buffer layer or layers is used between the high temperature fiber and the superconductor to promote grain alignment and enhance the current carrying capacity of the wire.

摘要翻译： 该专利申请涉及在长长度低温超导和高温超导线的制造中使用薄的高温纤维，特别是光纤作为基底材料。 使用薄膜或厚膜沉积技术将超导材料沉积在纤维上。 光纤可以在使用传统光学装置传输数据或通过沉积的超导体的电流传输方面具有双重用途。 在高温光纤和超导体之间使用缓冲层以促进晶粒取向并增强导线的载流能力。

公开(公告)号：US6013608A

公开(公告)日：2000-01-11

申请号：US95494

申请日：1998-06-11

申请人： Gerard Duperray ,  Peter Friedrich Herrmann ,  Denis Legat ,  Albert Leriche ,  Jean-Pierre Tavergnier

发明人： Gerard Duperray ,  Peter Friedrich Herrmann ,  Denis Legat ,  Albert Leriche ,  Jean-Pierre Tavergnier

IPC分类号： C01G1/00 ,  C01G29/00 ,  H01B12/10 ,  H01B13/00 ,  H01L39/24 ,  C04B35/653

CPC分类号： H01L39/248

摘要： A process for texturing an HTc superconductor of the matrix type based on silver and the superconductor material (Bi.sub.1-x Pb.sub.x).sub.2 Sr.sub.2 Ca.sub.y Cu.sub.1+y O.sub.6+2y where x.epsilon.[0; 0,4] and y.epsilon.{0, 1, 2} includes the following steps carried out in succession: raising the temperature of the superconductor from room temperature to the melting point of the superconductor material, maintaining the temperature of the superconductor constant at the melting point of the superconductor material for a relatively short period, varying the temperature of the superconductor between the melting point of the superconductor material and its synthesis temperature, maintaining the temperature of the superconductor constant at the synthesis temperature of the superconductor material for a relatively long period and reducing the temperature of the superconductor from the synthesis temperature of the superconductor material to room temperature. The step of varying the temperature of the superconductor between the melting point of the superconductor material and its synthesis temperature comprises sudden cooling of the superconductor from the melting point of the superconductor material to an end of cooling temperature less than the synthesis temperature of the superconductor material, and raising the temperature of the superconductor from the end of cooling temperature to the synthesis temperature of the superconductor material.

摘要翻译： 基于银和超导体材料（Bi1-xPbx）2Sr2CayCu1 + yO6 + 2y的矩阵型HTC超导体的纹理化工艺，其中xε[0; 0,4]和yε{0,1,2}包括连续执行的以下步骤：将超导体的温度从室温升高到超导体材料的熔点，保持超导体的温度恒定在 超导体材料的熔点相对较短，改变了超导体材料的熔点与其合成温度之间的超导体的温度，使超导体的温度保持恒定在超导体材料的合成温度较长 并将超导体的温度从超导体材料的合成温度降低到室温。 超导体材料的熔点和合成温度之间的超导体的温度变化的步骤包括将超导体从超导体材料的熔点骤冷到冷却温度结束，超过超导体材料的合成温度 ，并将超导体的温度从冷却温度结束时提高到超导体材料的合成温度。

公开(公告)号：US5987731A

公开(公告)日：1999-11-23

申请号：US473950

申请日：1995-06-07

申请人： Shumpei Yamazaki

发明人： Shumpei Yamazaki

IPC分类号： B21C37/04 ,  C23C2/04 ,  C23C8/02 ,  C23C8/10 ,  C23C26/00 ,  H01L39/24

CPC分类号： H01L39/2425 ,  B21C37/042 ,  B21C37/045 ,  C23C2/04 ,  C23C26/00 ,  C23C8/02 ,  C23C8/10 ,  H01L39/248 ,  Y10T29/49014 ,  Y10T428/12486

摘要： A method for manufacturing an elongated member from a superconducting ceramic material comprising the steps of providing a hollow supporting body of metal or a metallic compound having a hollow inside section therein, introducing a superconducting ceramic material into the hollow inside section of the hollow supporting body, drying the above liquid, so that the superconducting ceramic material is coated on the inside of the supporting body; and firing the supporting body and the ceramic material in an oxidizing atmosphere.

摘要翻译： 一种从超导陶瓷材料制造细长构件的方法，包括以下步骤：在其中提供具有中空内部部分的金属或金属化合物的中空支撑体，将超导陶瓷材料引入中空支撑体的中空内部， 干燥上述液体，使超导陶瓷材料涂覆在支撑体的内侧; 并在氧化气氛中烧制支撑体和陶瓷材料。

公开(公告)号：US5972846A

公开(公告)日：1999-10-26

申请号：US890303

申请日：1992-05-27

申请人： Sungho Jin ,  Richard Curry Sherwood ,  Thomas Henry Tiefel

发明人： Sungho Jin ,  Richard Curry Sherwood ,  Thomas Henry Tiefel

IPC分类号： C04B35/45 ,  C04B35/653 ,  H01L39/14 ,  H01L39/24 ,  H01B12/00 ,  C04B35/505 ,  H01L39/12

CPC分类号： H01L39/143 ,  C04B35/4504 ,  C04B35/4508 ,  C04B35/4512 ,  C04B35/4521 ,  C04B35/653 ,  H01L39/2464 ,  H01L39/248 ,  Y10S505/733 ,  Y10S505/74 ,  Y10S505/78 ,  Y10S505/781 ,  Y10S505/879 ,  Y10T29/49014

摘要： Articles according to the invention comprise a superconductive cuprate (e.g., YBa.sub.2 Cu.sub.3 O.sub.7) body containing elongate grains measuring at least about 10 .mu.m along the long axis and having an aspect ratio of at least 10:1. Bodies according to the invention can have relatively high critical current density, as compared to analogous non-textured bodies.

摘要翻译： 根据本发明的制品包括超导铜酸盐（例如，YBa2Cu3O7）体，其包含沿着长轴测量至少约10微米并具有至少10:1的纵横比的细长颗粒。 与类似的非纹理体相比，根据本发明的体可以具有相对高的临界电流密度。

公开(公告)号：US5952270A

公开(公告)日：1999-09-14

申请号：US235560

申请日：1994-04-29

申请人： Steven Hughson ,  Elliott Thompson

发明人： Steven Hughson ,  Elliott Thompson

IPC分类号： H01L39/24

CPC分类号： H01L39/248 ,  Y10T29/49014 ,  Y10T29/49812

摘要： An oxide superconductor wire is prepared by preparing a length of precursor wire for processing into an oxide superconductor wire and coating the precursor wire with an isolating layer. The coated wire is wound onto a reel in a spiralling manner, such that each turn of the spiral is in alignment with the preceding turn of the spiral along an axis perpendicular to the axis of winding. The wound precursor wire is then heated to form the oxide superconductor. The removable isolating layer is prepared by coating the wire with a solution including a metal oxide and a porosity-inducing component, and heating the coated wire so as to induce porosity and control grain size of the metal oxide so as to render the coating removable. The coating should function to isolate the overlapping turns of the wound wire from neighboring wires, so that not diffusion bonding or adherence between the turns occurs. The coating should also be readily removable because the coating can interfere with subsequent processing of the oxide superconductor wire.

公开(公告)号：US5882412A

公开(公告)日：1999-03-16

申请号：US6621

申请日：1998-01-13

申请人： Richard D. Blaugher

发明人： Richard D. Blaugher

IPC分类号： C23C14/08 ,  C23C14/18 ,  C23C14/54 ,  C23C14/56 ,  H01L39/24 ,  C23C16/00

CPC分类号： C23C14/541 ,  C23C14/087 ,  C23C14/18 ,  C23C14/562 ,  H01L39/248 ,  Y10S505/783

摘要： A vertical two chamber reaction furnace. The furnace comprises a lower chamber having an independently operable first heating means for heating the lower chamber and a gas inlet means for admitting a gas to create an ambient atmosphere, and an upper chamber disposed above the lower chamber and having an independently operable second heating means for heating the upper chamber. Disposed between the lower chamber and the upper chamber is a vapor permeable diffusion partition. The upper chamber has a conveyor means for conveying a reactant there through. Of particular importance is the thallinating of long-length thallium-barium-calcium-copper oxide (TBCCO) or barium-calcium-copper oxide (BCCO) precursor tapes or wires conveyed through the upper chamber to thereby effectuate the deposition of vaporized thallium (being so vaporized as the first reactant in the lower chamber at a temperature between about 700.degree. and 800.degree. C.) on TBCCO or BCCO tape or wire (the second reactant) at its simultaneous annealing temperature in the upper chamber of about 800.degree. to 950.degree. C. to thereby replace thallium oxide lost from TBCCO tape or wire because of the high annealing temperature or to deposit thallium on BCCO tape or wire. Continuously moving the tape or wire provides a single-step process that effectuates production of long-length TBCCO superconducting product.

摘要翻译： 立式双室反应炉。 该炉包括具有可独立操作的用于加热下室的第一加热装置的下室和用于允许气体产生环境气氛的气体入口装置，以及设置在下室上方的上室，并具有可独立操作的第二加热装置 用于加热上腔室。 在下室和上室之间设置有透气的扩散隔板。 上部腔室具有用于在其中输送反应物的输送装置。 特别重要的是长时间的铊 - 钡 - 钙 - 铜氧化物（TBCCO）或钡 - 钙 - 氧化铜（BCCO）前体胶带或电缆通过上部腔室输送，从而实现蒸发铊的沉积 在TBCCO或BCCO胶带或电线（第二反应物）上在约700℃至950℃的温度下，在下室中作为第一反应物在约700℃至800℃的温度下蒸发） 因此由于退火温度高而在TBCCO胶带或电线上损失的氧化铊，或者在BCCO胶带或电线上沉积铊。 连续移动胶带或电线提供了一个单步的过程，可以生产长长度的TBCCO超导产品。