公开(公告)号：US5068219A

公开(公告)日：1991-11-26

申请号：US445639

申请日：1989-12-18

申请人： Sadaaki Hagino ,  Motokazu Suzuki ,  Hideyuki Kondo ,  Shigeru Nishikawa ,  Kenichi Hayashi

发明人： Sadaaki Hagino ,  Motokazu Suzuki ,  Hideyuki Kondo ,  Shigeru Nishikawa ,  Kenichi Hayashi

IPC分类号： H01L39/14 ,  H01L39/24 ,  H01B12/00 ,  H01B12/02

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

摘要： A superconducting structural body comprising an oxide based superconducting ceramics powder having a perovskite structure and a metal sheath surrounding the oxide based superconducting ceramics powder, the metal sheath including an Ag portion and a non-Ag metal portion, the Ag portion existing from the inner to outer surfaces of the metal sheath, a superconducting ceramics powder portion existing in the structural body, the non-Ag metal protion used as a structural material of the metal sheath of an outermost layer of the structural body, the superconducting ceramics powder portion and the non-Ag metal portion being disposed so as to be indirectly contact each other through the Ag material, and the superconducting structural body having a compressed oriented layer in which the C-axis of the crystal in the superconducting ceramics powder is oriented in the direction perpendicular to the longitudinal direction of the superconducting structural body, and in which a thickness thereof is not smaller than 5 .mu.m, and a process for fabricating the superconducting structural body. The superconducting composite wire and cable according to this invention each have effects that the content of Ag, which is very expensive, can be reduced compared to that needed in the conventional wire and cable, that they have excellent strength at a high or room temperature, that they have high critical current density, and they can be produced at ease.

公开(公告)号：US5044406A

公开(公告)日：1991-09-03

申请号：US167912

申请日：1988-03-14

申请人： Shunpei Yamazaki

发明人： Shunpei Yamazaki

IPC分类号： H01F6/06 ,  H01L39/14

CPC分类号： H01L39/143 ,  H01F6/06 ,  Y10S428/93 ,  Y10S505/725 ,  Y10S505/809 ,  Y10S505/812 ,  Y10S505/879 ,  Y10S505/885 ,  Y10T428/1317

摘要： A pipe comprises a hollow support member made from a member selected from copper and copper compounds and a copper oxide superconducting ceramic material which covers the inner surface of the support member with a space kept in the pipe for use in a magnet or power accumulator device.

摘要翻译： 一种管子包括由选自铜和铜化合物的构件制成的中空支撑构件和氧化铜超导陶瓷材料，其覆盖支撑构件的内表面，并具有保持在用于磁体或蓄电装置的管道中的空间。

公开(公告)号：US5019721A

公开(公告)日：1991-05-28

申请号：US395965

申请日：1989-08-18

申请人： Jon S. Martens ,  James B. Beyer ,  James E. Nordman ,  Gert K. G. Hohenwarter

发明人： Jon S. Martens ,  James B. Beyer ,  James E. Nordman ,  Gert K. G. Hohenwarter

IPC分类号： H01L39/14 ,  H01L39/22 ,  H03K3/38 ,  H03K17/92

CPC分类号： H01L39/225 ,  H01L39/145 ,  H03K17/92 ,  H03K3/38 ,  Y10S505/865 ,  Y10S505/874

摘要： Active superconducting devices are formed of thin films of superconductor which include a main conduction channel which has an active weak link region. The weak link region is composed of an array of links of thin film superconductor spaced from one another by voids and selected in size and thickness such that magnetic flux can propagate across the weak link region when it is superconducting. Magnetic flux applied to the weak link region will propagate across the array of links causing localized loss of superconductivity in the links and changing the effective resistance across the links. The magnetic flux can be applied from a control line formed of a superconducting film deposited coplanar with the main conduction channel and weak link region on a substrate. The devices can be formed of any type to superconductor but are particularly well suited to the high temperature superconductors since the devices can be entirely formed from coplanar films with no overlying regions. The devices can be utilized for a variety of electrical components, including switching circuits, amplifiers, oscillators and modulators, and are well suited to microwave frequency applications.

摘要翻译： 有源超导器件由超导体的薄膜形成，其包括具有有源弱连接区域的主导通道。 弱连接区域由薄膜超导体的连接阵列组成，薄壁超导体通过空隙彼此间隔开并且在尺寸和厚度上选择，使得当超导时磁通量可以在弱连接区域上传播。 施加到弱连接区域的磁通量将传播到连接的阵列上，导致链路中的超导性的局部损失并且改变跨越链路的有效电阻。 磁通量可以由与基板上的主导电通道和弱连接区共面共面的超导膜形成的控制线施加。 器件可以由任何类型的超导体形成，但是特别适合于高温超导体，因为器件可以由没有上覆区域的共面膜完全形成。 这些器件可用于各种电气元件，包括开关电路，放大器，振荡器和调制器，并且非常适合于微波频率应用。

公开(公告)号：US5006671A

公开(公告)日：1991-04-09

申请号：US247898

申请日：1988-09-22

申请人： Jan Boeke

发明人： Jan Boeke

IPC分类号： H01L39/14 ,  H01L39/24

CPC分类号： H01L39/248 ,  H01L39/143 ,  Y10S505/887 ,  Y10S505/918 ,  Y10T29/49014

摘要： A glass-clad wire of ceramic superconductive material is produced by filling a glass-lined metal cylinder with a powder of superconductive material, sealing the cylinder ends and drawing the filled, sealed cylinder through dies of progressively smaller size until a predetermined wire size is achieved. The formed wire is then heat treated to assure necessary crystallinity in the superconductor material. Removal of the outer metal coating leaves a glass-clad superconductor wire.

摘要翻译： 通过用玻璃衬里的金属圆筒填充超导材料的粉末来制造陶瓷超导材料的玻璃包覆线，密封圆柱端并通过逐渐更小尺寸的模具将填充的密封圆筒拉出，直到达到预定的线尺寸 。 然后对所形成的导线进行热处理，以确保超导体材料中必需的结晶度。 去除外部金属涂层留下玻璃包覆的超导体电线。

公开(公告)号：US4990411A

公开(公告)日：1991-02-05

申请号：US363720

申请日：1989-06-09

申请人： Shigeo Nakayama ,  Hachio Shiraki ,  Satoru Murase ,  Keizo Shimamura ,  Yoshiko Kohanawa

发明人： Shigeo Nakayama ,  Hachio Shiraki ,  Satoru Murase ,  Keizo Shimamura ,  Yoshiko Kohanawa

IPC分类号： H01B12/10 ,  H01B13/00 ,  H01L39/14 ,  H01L39/24

CPC分类号： H01L39/2403 ,  H01L39/14 ,  H01L39/2409 ,  Y10S420/901 ,  Y10S428/93 ,  Y10T29/49014 ,  Y10T428/12486

摘要： A composite member is prepared which comprises a core which will have a compound superconducting layer when heat-treated, and a stock for forming a stabilizing member made of copper and surrounding the core. The composite member is heat-treated in an oxidizing atmosphere, thus forming a copper-oxide thin layer on the surface of the stock. Thereafter, the composite member is heat-treated in a non-oxidizing atmosphere or in an atmosphere having an oxygen partial pressure which is too low to allow the forming of copper oxide. As a result, a compound superconducting wire is made which comprises a member including a compound superconductor, a diffusion-preventing layer made of oxide and surrounding the member, and a stabilizing member made of copper and surrounding the layer.

摘要翻译： 制备复合构件，其包括在热处理时将具有化合物超导层的芯，以及用于形成由铜制成并围绕芯的稳定构件的原料。 复合构件在氧化气氛中进行热处理，从而在坯料表面形成氧化铜薄层。 此后，在非氧化性气氛或氧分压太低的气氛中对复合构件进行热处理，不能形成氧化铜。 结果，制成复合超导线，其包括包括复合超导体的构件，由氧化物构成的包围该构件的防扩散层，以及围绕该层的铜制稳定构件。

公开(公告)号：US4983574A

公开(公告)日：1991-01-08

申请号：US221519

申请日：1988-07-20

申请人： Gundolf Meyer

发明人： Gundolf Meyer

IPC分类号： C22C1/05 ,  B22F7/08 ,  C22C5/06 ,  C22C9/00 ,  C22C29/12 ,  C22C32/00 ,  H01B12/00 ,  H01L39/12 ,  H01L39/14

CPC分类号： C22C32/0021 ,  B22F7/08 ,  H01L39/126 ,  H01L39/143 ,  Y10S505/704 ,  Y10S505/74 ,  Y10S505/805 ,  Y10S505/807 ,  Y10S505/813 ,  Y10S505/823 ,  Y10T29/49014

摘要： Conductor in strip, sheet or wire form with an electrical conductivity of at least 0.85.times.10.sup.6 .OMEGA..sup.-1 cm.sup.-1 at 77.degree. K. composed of a composite material of a metal matrix (1) and particles (2) composed of a high-temperature superconductor of the type RE Ba.sub.2 Cu.sub.3 O.sub.6.5-7.5 embedded therein and arranged rectilinearly in the longitudinal direction, RE generally denoting a rare earth metal. Preferably RE=yttrium and specifically the substance YBa.sub.2 Cu.sub.3 O.sub.7 and the particle diameter=0.1-100 .mu.m, more narrowly 0.2-20 .mu.m. Optionally an additional metal sheath which envelops the body forming the matrix (1).

摘要翻译： 由金属基体（1）的复合材料和由高分子量聚合物构成的颗粒（2）组成的导体在77°K下具有至少0.85×10 6欧姆 - 1cm -1的导电率的条形，片状或线状导体， 埋入RE Ba2Cu3O6.5-7.5型温度超导体，沿纵向直线排列，RE一般表示稀土金属。 优选RE =钇，特别是物质YBa2Cu3O7，粒径=0.1-100μm，更窄0.2-20μm。 可选地，附加金属护套，其包围形成基体（1）的主体。

公开(公告)号：US4983572A

公开(公告)日：1991-01-08

申请号：US236589

申请日：1988-08-25

申请人： Gijsbertus De With

发明人： Gijsbertus De With

IPC分类号： C04B35/00 ,  C01G1/00 ,  C04B35/45 ,  H01B12/00 ,  H01B12/02 ,  H01L39/12 ,  H01L39/14 ,  H01L39/24

CPC分类号： H01L39/247 ,  H01L39/143 ,  H01L39/2419 ,  Y10S505/807 ,  Y10S505/809 ,  Y10S505/818 ,  Y10S505/823

摘要： A superconductive body of an oxidic superconductive material having good mechanical properties is characterized in that the oxidic material forms a matrix through which finely divided particles are mixed at least the surface of which consists of a metal or a metal alloy. Particles in the form of fibres are preferably used and the surface of the particles consists of silver or gold.

公开(公告)号：US4982497A

公开(公告)日：1991-01-08

申请号：US295249

申请日：1988-12-05

申请人： Gerhard Mier

发明人： Gerhard Mier

IPC分类号： B28B1/00 ,  H01B13/00 ,  H01L39/14 ,  H01L39/24

CPC分类号： H01L39/14 ,  Y10S428/93 ,  Y10T29/49014 ,  Y10T428/12486

摘要： An extruded superconductor (1) comprises a conductor core composed of thin metal filaments, for example of niobium-titanium or niobium-tin, and a high-purity aluminium sheath (2) which acts as a stabilizer. A marked reduction in the electrical conductivity perpendicular to the longitudinal axis of the conductor is achieved by means of structures (3) in the form of cross-sectionally distributed layers, ribbon-like strips or closely aligned longitudinal single filaments or fibres or bundles of fibres made of a material of low conductivity embedded coaxially in the aluminium sheath. The layers of low conductivity material embedded coaxially in the aluminium sheath may be closed concentric circular sheaths surrounding the conductor core, at a distance from the core and from one another or ribbon-like strips made of the low conductivity material arranged in a star-shaped configuration about the conductor core.

摘要翻译： PCT No.PCT / CH88 / 00071 Sec。 371日期：1988年12月5日 102（e）日期1988年12月5日PCT提交1988年3月31日PCT公布。 出版物WO88 / 08208 日本1 9 9 8年10月20日。挤出超导体（1）包括由诸如铌 - 钛或铌 - 锡的细金属细丝组成的导体芯和用作稳定剂的高纯度铝护套（2）。 垂直于导体的纵向轴线的电导率的显着降低是通过横截面分布的层，带状条或紧密对齐的纵向单丝或纤维或纤维束形式的结构（3）实现的 由铝护套同轴嵌入的低导电性材料制成。 在铝护套中同轴嵌入的低导电性材料层可以是围绕导体芯的封闭的同心圆形护套，距离芯部和彼此一定距离或由低导电材料制成的带状条带布置成星形 关于导体芯的配置。

公开(公告)号：US4967141A

公开(公告)日：1990-10-30

申请号：US235529

申请日：1988-08-24

申请人： Masashi Kiguchi ,  Yoshimasa Murayama

发明人： Masashi Kiguchi ,  Yoshimasa Murayama

IPC分类号： H01L39/14 ,  H01F6/00 ,  H02J15/00 ,  H05K9/00

CPC分类号： H01F6/006 ,  Y10S505/725

摘要： A superconductive ring or coil is irradiated with a light ray so that its superconducting state is destroyed for a short period of time. Under the destruction of the superconducting state, removal of energy from the superconductive ring or coil or storage of energy therein is stably controlled.

公开(公告)号：US4929596A

公开(公告)日：1990-05-29

申请号：US220251

申请日：1988-07-18

申请人： Gundolf Meyer ,  Erwin Schonfeld ,  Clemens Verpoort

发明人： Gundolf Meyer ,  Erwin Schonfeld ,  Clemens Verpoort

IPC分类号： B28B1/00 ,  H01B12/04 ,  H01B13/00 ,  H01L39/14 ,  H01L39/24

CPC分类号： H01L39/248 ,  Y10S505/704 ,  Y10S505/74 ,  Y10T29/49014

摘要： Production of a sheathed wire or multiple-filament conductor composed of ceramic high-temperature superconductor by mixing Y.sub.2 O.sub.3, CuO and BaO.sub.2 or BaO.sub.2 +BaO, loading the powder mixture (3) into the interior of a metal sheath (1) lined with Ag intermediate layer (2), slowly heating to a maximum permissible reaction/sintering temperature of 950.degree. C. in a period of at least 0.1 h, holding the sintering temperature for at least 1 h, cooling down to 200.degree. C. at at most 10.degree. to 100.degree. C./h to form a conducting core (4) composed of YBa.sub.2 Cu.sub.3 O.sub.6.5-7.5. Variants having a layer composed of CuO, diffusion barrier composed of Ni, Ta, Nb, V or having Ag intermediate layer doped with AgO or BaO.sub.2. Preferably reactive sintering under a pressure of 10 to 10.000 bar as hot isostatic pressing. Variant: reactive annealing of the powder mixture under oxygen pressure of 10 to 3000 bar at 600.degree. to 950.degree. C. Pulverizing of the body formed, loading into the metal sheath (1), fabrication, sintering to form a compact superconductor under an external pressure of 10 to 3000 bar at 500.degree. to 900.degree. C. Multiple-filament conductor with centrally arranged tracks of oxygen-releasing substances surrounded by peripheral superconductor tracks.

摘要翻译： 通过混合Y2O3，CuO和BaO2或BaO2 + BaO生产由陶瓷高温超导体组成的护套线或多丝导体，将粉末混合物（3）装入内衬有Ag中间体的金属护套（1）的内部 层（2），在至少0.1h的时间内缓慢加热至950℃的最大允许反应/烧结温度，保持烧结温度至少1小时，冷却至200℃至多10℃ DEG至100℃/ h以形成由YBa2Cu3O6.5-7.5组成的导电芯（4）。 具有由CuO组成的层，由Ni，Ta，Nb，V组成的扩散阻挡层或具有AgO或BaO 2的Ag中间层的变体。 优选在10至10,000巴的压力下进行热等静压。 变种：在600〜950℃的氧压力为10〜3000巴的粉末混合物的反应退火。形成的体积粉碎，装载到金属护套（1）中，制造，烧结以在外部形成紧凑的超导体 在500〜900℃下压力为10〜3000巴。多芯导体具有中心布置的由外围超导体轨道包围的释氧物质轨迹。