公开(公告)号：US08993064B2

公开(公告)日：2015-03-31

申请号：US13510406

申请日：2010-11-12

Applicant: Hironao Okayama ,  Kouji Nanbu ,  Akira Kaneko ,  Hajime Ota ,  Kotaro Ohki ,  Takashi Yamaguchi ,  Kazuhiko Hayashi ,  Kazuya Ohmatsu

Inventor： Hironao Okayama ,  Kouji Nanbu ,  Akira Kaneko ,  Hajime Ota ,  Kotaro Ohki ,  Takashi Yamaguchi ,  Kazuhiko Hayashi ,  Kazuya Ohmatsu

IPC: C22F1/08 ,  C23C10/02 ,  H01L39/24 ,  H01L39/02 ,  B32B15/20 ,  C22C9/00 ,  C22C19/03

CPC classification number: C22C9/00 ,  B32B15/015 ,  C21D8/1255 ,  C22C19/03 ,  C22C38/007 ,  C22C38/40 ,  C22F1/08 ,  H01L39/2454 ,  Y10T428/12903 ,  Y10T428/12924 ,  Y10T428/12979

Abstract: Provided are a substrate for a superconducting compound and a method for manufacturing the substrate which can realize the excellent adhesive strength simultaneously with high orientation of copper. An absorbed material on a surface of a copper foil to which rolling is applied at a draft of 90% or more is removed by applying sputter etching to the surface of the copper foil, sputter etching is applied to a nonmagnetic metal sheet, the copper foil and the metal sheet are bonded to each other by applying a pressure to the copper foil and the metal sheet using reduction rolls, crystals of the copper in the copper foil are oriented by heating a laminated body formed by such bonding, copper is diffused into the metal sheet by heating with a copper diffusion distance of 10 nm or more, and a protective layer is laminated to a surface of the copper foil of the laminated body.

Abstract translation: 提供了一种用于超导化合物的基板和用于制造基板的方法，其可以在铜的高取向同时实现优异的粘合强度。 通过对铜箔的表面进行溅射蚀刻，去除在90％以上的卷取条件下施加轧制的铜箔的表面上的吸收材料，对非磁性金属板进行溅射蚀刻，铜箔 并且通过使用还原辊对铜箔和金属板施加压力来将金属片彼此接合，铜箔中的铜的晶体通过加热由这种键合形成的层叠体而取向，铜扩散到 金属片通过加热铜扩散距离为10nm以上，并且保护层层压到层叠体的铜箔的表面。

公开(公告)号：US20090260851A1

公开(公告)日：2009-10-22

申请号：US12299057

申请日：2007-04-20

Applicant: Shuji Hahakura ,  Kazuya Ohmatsu

Inventor： Shuji Hahakura ,  Kazuya Ohmatsu

IPC: H01B12/00 ,  B05D5/12

CPC classification number: H01L39/2461

Abstract: A superconductive thin film material which achieves good superconductivity by preventing an element diffusion reaction and a manufacturing method of the superconductive thin film material are provided. A superconductive thin film material is provided with a substrate, an intermediate layer with one layer or at least two layers formed on the substrate, and a superconductive layer formed on the intermediate layer. The intermediate layer has a thickness of not less than 0.4 μm. The material for forming the intermediate layer is preferably oxide having a crystal structure, which is at least one of a halite type, a fluorite type, a perovskite type, and a pyrochlore type.

Abstract translation: 提供了通过防止元件扩散反应而实现良好的超导性的超导薄膜材料和超导薄膜材料的制造方法。 超导薄膜材料设置有基板，在基板上形成有一层或至少两层的中间层，以及形成在中间层上的超导层。 中间层的厚度不小于0.4μm。 用于形成中间层的材料优选具有晶体结构的氧化物，其为盐岩型，萤石型，钙钛矿型和烧绿石型中的至少一种。

公开(公告)号：US20090137399A1

公开(公告)日：2009-05-28

申请号：US12063941

申请日：2006-08-30

Applicant: Munetsugu Ueyama ,  Kazuya Ohmatsu

Inventor： Munetsugu Ueyama ,  Kazuya Ohmatsu

IPC: H01B12/02 ,  H01L39/24

CPC classification number: H01L39/248

Abstract: An object of the present invention is to provide a method of fabricating a superconducting wire that can reduce the fabrication cost and increase the mechanical strength of the superconducting wire, and a superconducting apparatus including a superconducting wire obtained by the method. The present invention provides a method of fabricating a superconducting wire including the steps of forming a superconducting layer on a substrate or an intermediate layer formed on the substrate, forming a silver stabilization layer on the superconducting layer immersing the substrate in a copper sulfate solution after the superconducting layer and the silver stabilization layer are formed thereon, and forming a copper stabilization layer on the silver stabilization layer by electroplating with the copper sulfate solution as a plating bath. A superconducting apparatus including a superconducting wire obtained by the method is also provided.

Abstract translation: 本发明的目的是提供一种可以降低超导线材的制造成本和增加机械强度的超导线材的制造方法，以及包括通过该方法获得的超导线材的超导装置。 本发明提供一种制造超导线的方法，包括以下步骤：在衬底或形成在衬底上的中间层上形成超导层，在超导层上形成银稳定层，将基底浸入硫酸铜溶液中 在其上形成超导层和银稳定层，并且通过用硫酸铜溶液电镀作为镀浴在银稳定层上形成铜稳定层。 还提供了包括通过该方法获得的超导线的超导装置。

公开(公告)号：US20060219322A1

公开(公告)日：2006-10-05

申请号：US10552728

申请日：2004-07-13

Applicant: Koso Fujino ,  Kazuya Ohmatsu ,  Masaya Konishi ,  Shuji Hahakura

Inventor： Koso Fujino ,  Kazuya Ohmatsu ,  Masaya Konishi ,  Shuji Hahakura

IPC: H01L39/24

CPC classification number: H01L39/2454

Abstract: A superconducting wire formed of a metal substrate and an overlying superconducting layer, the metal substrate being a textured metal substrate and planarized to have a surface layer extending from a surface thereof to a depth of 300 nm with a crystal axis offset relative to an orientation axis by at most 25° and a surface roughness RP-V of at most 150 nm, and a method of producing the wire. The surface layer's biaxial texture can be maintained while the substrate can have a surface planarized, and a highly superconductive wire and achieve a method of producing the same can thus be achieved.

Abstract translation: 由金属衬底和上覆超导层形成的超导线，金属衬底是纹理化的金属衬底，并且被平坦化以具有从其表面延伸到300nm深度的表面层，其中晶轴相对于取向轴线偏移 至多25°，表面粗糙度R PV至多为150nm，以及生产线的方法。 可以保持表面层的双轴结构，同时基板可以具有平面化的表面，并且可以实现高超导线并实现其制造方法。

公开(公告)号：US06192573B1

公开(公告)日：2001-02-27

申请号：US09055287

申请日：1998-04-06

Applicant: Shuji Hahakura ,  Nobuhiro Saga ,  Kazuya Ohmatsu ,  Kenichi Sato

Inventor： Shuji Hahakura ,  Nobuhiro Saga ,  Kazuya Ohmatsu ,  Kenichi Sato

IPC: H01L3924

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

Abstract: 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.

Abstract translation: 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：US5215565A

公开(公告)日：1993-06-01

申请号：US817965

申请日：1992-01-08

Applicant: Akira Urano ,  Kenichi Takahashi ,  Kazuya Ohmatsu ,  Masashi Onishi

Inventor： Akira Urano ,  Kenichi Takahashi ,  Kazuya Ohmatsu ,  Masashi Onishi

IPC: C03B37/026 ,  C03B37/027 ,  C03B37/028 ,  H01L39/24

CPC classification number: C03B37/027 ,  C03B37/026 ,  C03B37/028 ,  H01L39/248 ,  Y10S505/704 ,  Y10S505/74

Abstract: A method of the production of the ceramic superconductor filament comprisesa step including mixing raw materials of ceramic superconductor, subsequently shaping the mixed ceramic superconductor into a ceramic superconductor body of a predetermined shape and preliminarily sintering thereof and further subsequently crushing the sintered ceramic superconductor body into ceramic superconductor powder;a step of filling the ceramic superconductor powder in a glass tube;a step of heating the glass tube including ceramic superconductor powder so that the ceramic superconductor powder is molten; anda step of spinning the glass tube including the ceramic superconductor materialwhereby a ceramic super conductor covered with the glass material can be obtained.

Abstract translation: 制造陶瓷超导体丝的方法包括：将陶瓷超导体的原料混合，然后将混合陶瓷超导体成形为规定形状的陶瓷超导体，并预先烧结，然后将烧结陶瓷超导体体破碎成 陶瓷超导体粉末; 将陶瓷超导体粉末填充到玻璃管中的步骤; 加热包括陶瓷超导体粉末的玻璃管，使陶瓷超导体粉末熔融的步骤; 以及纺丝包含陶瓷超导体材料的玻璃管的步骤，由此可以获得覆盖有玻璃材料的陶瓷超导体。

公开(公告)号：US08048475B2

公开(公告)日：2011-11-01

申请号：US12063941

申请日：2006-08-30

Applicant: Munetsugu Ueyama ,  Kazuya Ohmatsu

Inventor： Munetsugu Ueyama ,  Kazuya Ohmatsu

IPC: B05D5/12

CPC classification number: H01L39/248

Abstract: An object of the present invention is to provide a method of fabricating a superconducting wire that can reduce the fabrication cost and increase the mechanical strength of the superconducting wire, and a superconducting apparatus including a superconducting wire obtained by the method. The present invention provides a method of fabricating a superconducting wire including the steps of forming a superconducting layer on a substrate or an intermediate layer formed on the substrate, forming a silver stabilization layer on the superconducting layer, immersing the substrate in a copper sulfate solution after the superconducting layer and the silver stabilization layer are formed thereon, and forming a copper stabilization layer on the silver stabilization layer by electroplating with the copper sulfate solution as a plating bath. A superconducting apparatus including a superconducting wire obtained by the method is also provided.

Abstract translation: 本发明的目的是提供一种可以降低超导线材的制造成本和增加机械强度的超导线材的制造方法，以及包括通过该方法获得的超导线材的超导装置。 本发明提供一种制造超导线的方法，包括以下步骤：在衬底上形成超导层或形成在衬底上的中间层，在超导层上形成银稳定层，然后将衬底浸入硫酸铜溶液中 在其上形成超导层和银稳定层，并通过用硫酸铜溶液电镀作为镀浴在银稳定层上形成铜稳定层。 还提供了包括通过该方法获得的超导线的超导装置。

公开(公告)号：US20090149330A1

公开(公告)日：2009-06-11

申请号：US12278352

申请日：2007-01-17

Applicant: Shuji Hahakura ,  Kazuya Ohmatsu ,  Munetsugu Ueyama ,  Katsuya Hasegawa

Inventor： Shuji Hahakura ,  Kazuya Ohmatsu ,  Munetsugu Ueyama ,  Katsuya Hasegawa

IPC: H01L39/00 ,  H01L39/24

CPC classification number: H01L39/2432 ,  H01L39/143 ,  H01L39/2454

Abstract: A method of manufacturing a superconducting thin film material includes the step of forming an intermediate layer, the step of forming one superconducting layer to be in contact with the intermediate layer and the step of forming another superconducting layer by a vapor phase method to be in contact with the one superconducting layer. Between the step of forming the intermediate layer and the step of forming the one superconducting layer, the intermediate layer is kept in a reduced water vapor ambient or reduced carbon dioxide ambient or, between the step of forming one superconducting layer and the step of forming another superconducting layer, the one superconducting layer is kept in a reduced water vapor ambient or reduced carbon dioxide ambient. Thus, the critical current value can be improved.

Abstract translation: 制造超导薄膜材料的方法包括形成中间层的步骤，形成与中间层接触的一个超导层的步骤和通过气相法形成另一超导层的步骤接触 与一个超导层。 在形成中间层的步骤和形成一个超导层的步骤之间，中间层保持在减少的水蒸气环境或二氧化碳气氛中，或者在形成一个超导层的步骤和形成另一个超导层的步骤之间 超导层，一个超导层保持在减少的水蒸汽环境或二氧化碳气氛中降低。 因此，可以提高临界电流值。

公开(公告)号：US07371586B2

公开(公告)日：2008-05-13

申请号：US10536694

申请日：2004-08-06

Applicant: Shuji Hahakura ,  Kazuya Ohmatsu

Inventor： Shuji Hahakura ,  Kazuya Ohmatsu

IPC: H01L21/00

CPC classification number: H01L39/2422

Abstract: A superconductor and a method for producing the same are provided. The method for producing a superconductor includes the step of forming a superconducting layer on a base layer by performing a film deposition at least three times, wherein the film thickness of a superconducting film in each film deposition is 0.3 μm or less. In such a case, even when the layer thickness of the superconducting layer is increased, the decrease in the Jc is suppressed and the Ic is increased.

Abstract translation: 提供了一种超导体及其制造方法。 制造超导体的方法包括以下步骤：通过进行至少三次的膜沉积，在基底层上形成超导层，其中每个膜沉积中的超导膜的膜厚度为0.3μm以下。 在这种情况下，即使当超导层的层厚度增加时，Jc的减小也被抑制，并且Ic增大。

公开(公告)号：US20060014304A1

公开(公告)日：2006-01-19

申请号：US10536694

申请日：2004-08-06

Applicant: Shuji Hahakura ,  Kazuya Ohmatsu

Inventor： Shuji Hahakura ,  Kazuya Ohmatsu

IPC: H01L21/00

CPC classification number: H01L39/2422

Abstract: A superconductor and a method for producing the same are provided. The method for producing a superconductor includes the step of forming a superconducting layer on a base layer by performing a film deposition at least three times, wherein the film thickness of a superconducting film in each film deposition is 0.3 μm or less. In such a case, even when the layer thickness of the superconducting layer is increased, the decrease in the Jc is suppressed and the Ic is increased.

Abstract translation: 提供了一种超导体及其制造方法。 制造超导体的方法包括以下步骤：通过进行至少三次的膜沉积，在基底层上形成超导层，其中每个膜沉积中的超导膜的膜厚度为0.3μm以下。 在这种情况下，即使当超导层的层厚度增加时，Jc的减小也被抑制，并且Ic增大。