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公开(公告)号：US5932523A
公开(公告)日：1999-08-03
申请号：US326298
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
CPC分类号： H01L39/143 , H01L39/248
摘要： In order to provide a flexible oxide superconducting cable conductor which is reduced in ac loss, tape-shaped multifilamentary superconducting wires covered with a stabilizing metal are spirally wound on a flexible former. Each of the multifilamentary superconducting wires has a plurality of filaments. The filament contains an oxide superconductor. The superconducting wires are preferably wound on the former at a bending strain of not more than 0.3 %. In winding on the former, a prescribed number of tape-shaped multifilamentary superconducting wires are wound on a core member in a side-by-side manner, to form a first layer. Then, an insulating layer is provided on the first layer. This insulating layer can be formed by an insulating tape. A prescribed number of tape-shaped superconducting multifilamentary wires are wound on the insulating layer in a side-by-side manner, to form a second layer. The insulating layer is adapted to reduce ac loss of the conductors. When the former is made of a metal, it is more preferable to provide an insulating layer between the former and the multifilamentary superconducting wires.
摘要翻译： 为了提供减少交流损耗的柔性氧化物超导电缆导体，用稳定金属覆盖的带状多丝超导线被螺旋缠绕在柔性成形器上。 每根多丝超导线具有多根长丝。 灯丝包含氧化物超导体。 超导线优选以不大于0.3％的弯曲应变缠绕在前者上。 在卷绕在前者上时，规定数量的带状复丝超导线以并列方式卷绕在芯部件上，形成第一层。 然后，在第一层上设置绝缘层。 该绝缘层可以由绝缘带形成。 规定数量的带状超导复丝线并排缠绕在绝缘层上，形成第二层。 绝缘层适于减少导体的交流损耗。 当前者由金属制成时，更优选在前者和多丝超导线之间设置绝缘层。
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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。
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3.发明授权公开(公告)号：US06313408B1
公开(公告)日：2001-11-06
申请号：US08766984
申请日：1996-12-16
申请人： Jun Fujikami , Kenichi Sato , Tsukushi Hara , Hideo Ishii
发明人： Jun Fujikami , Kenichi Sato , Tsukushi Hara , Hideo Ishii
IPC分类号： H01B1200
CPC分类号： H01B12/02 , Y02E40/641
摘要： Provided is an insulated oxide superconducting cable conductor having a high critical current and a high critical current density. The insulated oxide superconducting cable conductor comprises an elongated former, a plurality of tape-shaped multifilamentary oxide superconducting wires which are wound on the former at a bending strain factor of not more than 0.5%, and a spirally wound tape-shaped insulating material covering the tape-shaped multifilamentary oxide superconducting wires. The tape-shaped multifilamentary superconducting wires are superposed on the former in layers, whereby stabilizing materials of the superposed superconducting wires are in contact with each other. The tape-shaped insulating material consists essentially of a material which is contracted at a thermal contraction rate of at least three times that of the tape-shaped multifilamentary wires by cooling from a temperature of 298 K to that of 77 K. The tape-shaped insulating material can apply a pressure to the superposed multifilamentary superconducting wires toward the former while improving electrical contact between the superposed multifilamentary superconducting wires by cooling in employment. The former can be formed of a flexible tube.
摘要翻译： 提供了具有高临界电流和高临界电流密度的绝缘氧化物超导电缆导体。 绝缘氧化物超导电缆导体包括细长的成形器，多个带状复丝氧化物超导线，其以不大于0.5％的弯曲应变系数缠绕在前者上，以及螺旋卷绕的带状绝缘材料， 带状复丝氧化物超导线。 带状多丝超导线叠层叠在一起，由此叠加的超导线的稳定材料彼此接触。 带状绝缘材料基本上由以298K的温度冷却到77K的方式以至少三倍于带状复丝线的热收缩率收缩的材料组成。带状绝缘材料 绝缘材料可以向重叠的多丝超导线施加压力，同时通过就业冷却改善叠加的多丝超导线之间的电接触。 前者可以由柔性管形成。
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公开(公告)号：US5607899A
公开(公告)日：1997-03-04
申请号：US393747
申请日：1995-02-24
申请人： Noriyuki Yoshida , Kousou Fujino , Noriki Hayashi , Shigeru Okuda , Tsukushi Hara , Hideo Ishii
发明人： Noriyuki Yoshida , Kousou Fujino , Noriki Hayashi , Shigeru Okuda , Tsukushi Hara , Hideo Ishii
IPC分类号： C01G1/00 , C01G3/00 , C30B23/00 , C30B23/02 , C30B29/22 , H01B12/06 , H01B13/00 , H01L21/203 , H01L39/24 , C30B23/08 , C30B25/06
CPC分类号： H01L39/2448 , C30B23/02 , C30B29/16 , C30B29/22 , C30B29/225 , H01L39/2461 , Y10S505/732
摘要： A thin film strongly orienting specific crystal axes is deposited on a polycrystalline or amorphous base material in accordance with laser deposition in a simpler device through a simpler process. A target is irradiated with a laser beam, for forming a thin film in accordance with laser ablation of depositing a substance scattered from the target on a base material. In order to form the thin film, prepared are conditions capable of forming a film orienting a specific crystal axis substantially perpendicularly to the base material in substantially parallel arrangement of the target and the base material. Under the conditions, a film is deposited on the base material which is inclined at a prescribed angle .theta. with respect to the target. It is possible to deposit a film strongly orienting a specific crystal axis in a plane substantially parallel to the base material surface by inclining the base material under the specific film forming conditions.
摘要翻译： 通过更简单的工艺，在更简单的装置中，根据激光沉积，将特定晶轴强烈取向的薄膜沉积在多晶或非晶基材上。 用激光照射目标物，用于根据在基材上沉积从靶上散出的物质的激光烧蚀来形成薄膜。 为了形成薄膜，制备能够基本上平行排列靶材和基材的方式形成基本上垂直于基材垂直的特定晶轴的膜的条件。 在这种条件下，在相对于目标物以规定角度θ倾斜的基材上沉积膜。 通过在特定的成膜条件下使基材倾斜，可以将基本平行于基材表面的平面中的特定晶轴强制取向。
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公开(公告)号：US5372089A
公开(公告)日：1994-12-13
申请号：US97788
申请日：1993-07-26
申请人： Noriyuki Yoshida , Satoshi Takano , Kousou Fujino , Shigeru Okuda , Tsukushi Hara , Hideo Ishii
发明人： Noriyuki Yoshida , Satoshi Takano , Kousou Fujino , Shigeru Okuda , Tsukushi Hara , Hideo Ishii
CPC分类号： H01L39/2448 , C30B23/02 , C30B25/18 , C30B29/22 , C30B29/225 , H01L39/2422 , H01L39/2461 , Y10S505/729 , Y10S505/73 , Y10S505/732
摘要： Disclosed herein is a method of forming a single-crystalline thin film having excellent crystallinity on a base material without depending on the material for and crystallinity of the base material. In this method, a base material is provided thereon with a mask which can prevent chemical species contained in a vapor phase from adhering to the base material. The base material is continuously moved along arrow A, to deliver a portion covered with the mask into the vapor phase for crystal growth. Thus, a thin film is successively deposited on the portion of the base material, which is delivered from under the mask, from the vapor phase. A crystal growth end is formed on a boundary region between a portion of the base material which is covered with the mask and that which is exposed to the vapor phase, so that a crystal having the same orientation as the growth end is grown on a portion of the base material newly exposed by the movement.
摘要翻译： 本文公开了在基材上形成具有优异结晶性的单晶薄膜的方法，而不依赖于基材的材料和结晶性。 在该方法中，在其上设置有能够防止气相中所含的化学物质附着在基材上的掩模的基材。 基材沿箭头A连续移动，以将覆盖有掩模的部分输送到气相中以进行晶体生长。 因此，薄膜依次沉积在从掩模下面从气相输送的基材的部分上。 晶体生长端形成在被掩模覆盖的基材的部分和暴露于气相的部分之间的边界区域上，使得具有与生长端相同取向的晶体生长在部分上 的运动新露出的基础材料。
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公开(公告)号：US5489338A
公开(公告)日：1996-02-06
申请号：US97789
申请日：1993-07-26
申请人： Kousou Fujino , Satoshi Takano , Noriyuki Yoshida , Tsukushi Hara , Hideo Ishii
发明人： Kousou Fujino , Satoshi Takano , Noriyuki Yoshida , Tsukushi Hara , Hideo Ishii
IPC分类号： C01G1/00 , C23C14/28 , C23C14/46 , C23C14/54 , C30B23/08 , H01B12/06 , H01B13/00 , H01L39/24
CPC分类号： C23C14/28 , C23C14/54 , H01L39/2448
摘要： An apparatus for manufacturing an oxide superconducting film employing laser ablation method having a thin film forming chamber having a laser-transparent laser entrance window, a target being provided in the thin film forming chamber and containing components of an oxide superconductor, a laser beam source for irradiating the target with a laser beam from the exterior of the thin film forming chamber through the laser entrance window, and a controller for controlling power of the laser beam which is applied to the target for preventing the power of the laser beam, being applied to the target, from reduction by contamination of the entrance window caused by scattered particles. According to the present invention, it is possible to form an oxide superconducting film having high and uniform characteristics even if a long time is required for film formation, thereby attaining a remarkable effect in improvement of superconductivity of a large area oxide superconducting film.
摘要翻译： 一种使用具有激光透明激光入射窗的薄膜形成室的激光烧蚀方法的制造氧化物超导膜的装置，在薄膜形成室内设置靶，并含有氧化物超导体的成分，激光束源 用来自薄膜形成室的外部的激光束通过激光入口窗照射目标，以及控制器，用于控制施加到目标上的激光束的功率，以防止激光束的光束被施加到 目标，由于分散颗粒引起的入口窗口的污染减少。 根据本发明，即使成膜需要长时间，也可以形成具有高均匀性的氧化物超导膜，从而在提高大面积氧化物超导膜的超导性方面具有显着的效果。
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公开(公告)号：US5601649A
公开(公告)日：1997-02-11
申请号：US496564
申请日：1995-06-29
申请人： Kousou Fujino , Satoshi Takano , Noriyuki Yoshida , Tsukushi Hara , Hideo Ishii
发明人： Kousou Fujino , Satoshi Takano , Noriyuki Yoshida , Tsukushi Hara , Hideo Ishii
IPC分类号： C01G1/00 , C23C14/28 , C23C14/46 , C23C14/54 , C30B23/08 , H01B12/06 , H01B13/00 , H01L39/24
CPC分类号： C23C14/28 , C23C14/54 , H01L39/2448
摘要： Disclosed herein is an apparatus for manufacturing an oxide superconducting film employing laser ablation method. This apparatus has a thin film forming chamber having a laser-transparent laser entrance window, a target being provided in the thin film forming chamber and containing components of an oxide superconductor, a laser beam source for irradiating the target with a laser beam from the exterior of the thin film forming chamber through the laser entrance window, and apparatus for controlling power of the laser beam which is applied to the target for preventing the power of the laser beam, being applied to the target, from reduction by contamination of the entrance window caused by scattered particles. According to the present invention, it is possible to form an oxide superconducting film having high and uniform characteristics even if a long time is required for film formation, thereby attaining a remarkable effect in improvement of superconductivity of a large area oxide superconducting film.
摘要翻译： 本文公开了一种使用激光烧蚀法制造氧化物超导膜的装置。 该装置具有薄膜形成室，该薄膜形成室具有激光透明的激光入口窗口，目标设置在薄膜形成室中并且包含氧化物超导体的部件，用于从外部用激光束照射靶的激光束源 通过激光入口窗口对薄膜形成室进行控制，以及用于控制激光束的功率的装置，该激光束被施加到目标上以防止被施加到目标的激光束的功率由于入口窗口的污染而减少 由分散颗粒引起。 根据本发明，即使成膜需要长时间，也可以形成具有高均匀性的氧化物超导膜，从而在提高大面积氧化物超导膜的超导性方面具有显着的效果。
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公开(公告)号：US5683059A
公开(公告)日：1997-11-04
申请号：US631160
申请日：1996-04-12
申请人： Tsukushi Hara , Masahiko Nakade , Takeshi Ohkuma , Kenji Tasaki , Takashi Yazawa , Hideaki Maeda , Eriko Yoneda , Shunji Nomura , Toshihiro Kashima , Atsuhiko Yamanaka
发明人： Tsukushi Hara , Masahiko Nakade , Takeshi Ohkuma , Kenji Tasaki , Takashi Yazawa , Hideaki Maeda , Eriko Yoneda , Shunji Nomura , Toshihiro Kashima , Atsuhiko Yamanaka
CPC分类号： H01F6/06 , B29C70/08 , B29C70/10 , B29C53/56 , B29K2223/06 , B29K2309/00 , B29K2995/0084
摘要： A bobbin for superconducting coils, which is made of a fiber-reinforced plastic material containing: (1) a matrix resin; (2) a polyethylene fiber having a negative thermal expansion coefficient in the fiber lengthwise direction, the angle between the polyethylene fiber and the longitudinal axis of the bobbin being in the range of .+-.35.degree. to 90.degree.; and (3) a substance having an elastic modulus higher than that of the polyethylene fiber. The bobbin of the present invention is useful for superconducting coils because it only exhibits a quite low degree of deformation, even when used under external stress at cryogenic temperatures.
摘要翻译： 一种用于超导线圈的线圈，其由纤维增强塑料制成，包括：（1）基体树脂; （2）在纤维长度方向上具有负热膨胀系数的聚乙烯纤维，聚乙烯纤维与筒管纵轴之间的角度在+/- 35°至90°的范围内; 和（3）弹性模量高于聚乙烯纤维的物质。 本发明的线轴对于超导线圈是有用的，因为即使在低温下的外部应力下使用也只能表现出非常低的变形度。
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公开(公告)号：US5414586A
公开(公告)日：1995-05-09
申请号：US49446
申请日：1993-04-20
CPC分类号： H02H9/023 , H01F2006/001 , Y02E40/69
摘要： A superconducting current limiting device for limiting overcurrent flowing in a load. The device includes a current limiter with a first superconducting coil, a second superconducting coil arranged coaxially with the first superconducting coil so as to have a negative magnetic coupling condition, and a third superconducting coil arranged coaxially with the first and second superconducting coils so as to have a negative magnetic coupling condition with the second superconducting coil and so as to have a positive magnetic coupling condition with the first superconducting coil. The first and second superconducting coils are electrically connected in series. The device includes a high speed switch connected electrically in series with the third superconducting coil to form a series circuit. The series circuit is electrically connected in parallel with the second superconducting coil.The device further includes a current monitoring circuit for monitoring current flowing in the load and for generating a signal so as to close the high speed switch when the current flowing in the load exceeds a prescribed value.
摘要翻译： 一种限制过载电流在负载中流动的超导电流限制装置。 该器件包括具有第一超导线圈的限流器，与第一超导线圈同轴布置以具有负磁耦合条件的第二超导线圈和与第一和第二超导线圈同轴设置的第三超导线圈，以便 与第二超导线圈具有负磁耦合条件，并且与第一超导线圈具有正的磁耦合条件。 第一和第二超导线圈串联电连接。 该装置包括与第三超导线圈串联电连接以形成串联电路的高速开关。 串联电路与第二超导线圈并联电连接。 该装置还包括一个电流监视电路，用于监测在负载中流动的电流，并产生一个信号，以便当在负载中流动的电流超过规定值时闭合高速开关。
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10.发明授权
公开(公告)号：US5360785A
公开(公告)日：1994-11-01
申请号：US59428
申请日：1993-05-07
申请人： Noriyuki Yoshida , Satoshi Takano , Shigeru Okuda , Noriki Hayashi , Tsukushi Hara , Kiyoshi Okaniwa , Takahiko Yamamoto
发明人： Noriyuki Yoshida , Satoshi Takano , Shigeru Okuda , Noriki Hayashi , Tsukushi Hara , Kiyoshi Okaniwa , Takahiko Yamamoto
CPC分类号： H01L39/2448 , C23C14/087 , C23C14/28 , Y10S505/73 , Y10S505/732
摘要： In a method of preparing an oxide superconducting thin film having a composition of Y-Ba-Cu-O, for example, using laser ablation, which comprises the steps of applying a laser beam to a target containing components of an oxide superconductive material and depositing particles, being thereby scattered from the target, on a substrate, the oxygen gas flow rate during film deposition is set to be at least 50 SCCM, the oxygen gas pressure during film deposition is set to be 10 to 1000 mTorr, the distance between a target 9 and a substrate 10 is set to be 40 to 100 mm, the temperature of the substrate 10 is set to be 600.degree. to 800.degree. C., the energy density of a laser beam 7 on the surface of the target 9 is set to be at least 1 J/cm.sup.2, and the laser pulse energy is set to be at least 10 mJ.
摘要翻译： 在制备具有例如使用激光烧蚀的Y-Ba-Cu-O组成的氧化物超导薄膜的方法中，包括以下步骤：将激光束施加到包含氧化物超导材料的组分的靶上，并沉积 颗粒从靶上散布在基板上，成膜期间的氧气流量设定为至少50SCCM，成膜期间的氧气压力设定为10〜1000mTorr，a 靶材9和基板10被设定为40〜100mm，将基板10的温度设定为600〜800℃，设定目标9的表面上的激光束7的能量密度 为至少1J / cm 2，激光脉冲能量设定为至少10mJ。
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