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Superconducting wire, tape, cable, or fiber, per se

Subclass of:

505 - Superconductor technology: apparatus, material, process

505150000 - HIGH TEMPERATURE (TC GREATER THAN 30 K) DEVICES, SYSTEMS, APPARATUS, COM- PONENTS, OR STOCK, OR PROCESSES OF USING

Patent class list (only not empty are listed)

Deeper subclasses:

Class / Patent application numberDescriptionNumber of patent applications / Date published
505231000 Having plural superconducting wire or superconducting fiber component (e.g., multifilament wire, etc.) 30
505232000 Having nonsuperconducting core 4
20090305897Superconduting Composite Wire Made from Magnesium Diboride - A superconducting composite wire with superconducting phase of magnesium diboride comprises: a core of conductive metal (12-10-2009
20120129701CONDUCTOR FOR TRANSMITTING ELECTRICAL POWER - A conductor for transmitting electrical power having a cylindrical core (05-24-2012
20110245084METHOD FOR MANUFACTURING PRECURSOR, METHOD FOR MANUFACTURING SUPERCONDUCTING WIRE, PRECURSOR, AND SUPERCONDUCTING WIRE - A method for manufacturing a superconducting wire includes the following steps. A laminate metal having a first metal layer and a Ni layer formed on the first metal layer is prepared. An intermediate layer is formed on the Ni layer of the laminate metal. A superconducting layer is formed on the intermediate layer. By subjecting the laminate metal to a heat treatment after at least either of the step of forming a intermediate layer and the step of forming a superconducting layer, a nonmagnetic Ni alloy layer is formed from the laminate metal.10-06-2011
20130157866SUPERCONDUCTING WIRE MATERIAL AND METHOD FOR MANUFACTURING SUPERCONDUCTING WIRE MATERIAL - Impurities in an oxide superconducting layer or at a surface of the oxide superconducting layer at an intermediate layer side are reduced. A superconducting wire rod has a configuration that includes a metal substrate 06-20-2013
Entries
DocumentTitleDate
20090192042SUPERCONDUCTING CABLE PROVIDED WITH ENHANCED COOLING ABILITY - Provided is a superconducting cable provided with an enhanced cooling ability, the superconducting cable including a core including a superconducting wire rod; an inner sheath surrounding the core; an outer sheath surrounding the inner sheath; a plurality of communication pipes that have both ends communicating with the inner and outer sheaths, and are mounted in the longitudinal direction of the inner and outer sheaths; a plurality of valves that are mounted in the communication pipes; and a plurality of auxiliary cooling systems that are mounted on some of the communication pipes. Cooling fluid supplied from the cooling systems is supplied into the inner sheath through the communication pipes, and is then discharged to the outside through the valves.07-30-2009
20130085071OXIDE SUPERCONDUCTOR CABLING AND METHOD OF MANUFACTURING OXIDE SUPERCONDUCTOR CABLING - Disclosed are an oxide superconductor tape and a method of manufacturing the oxide superconductor tape capable of improving the length and characteristics of superconductor tape and obtaining stabilized characteristics across the entire length thereof. A Y-class superconductor tape (04-04-2013
20100075857SUPERCONDUCTING TAPE AND PRODUCTION METHOD THEREOF - The invention offers a superconducting tape that maintains both high allowable tension and low splice resistance and a method of producing the superconducting tape. The superconducting tape is provided with a main-body portion and a reinforcement portion. The main-body portion has the shape of a tape and has a superconductor. The reinforcement portion is composed of precipitation-hardened-type copper alloy or alloy of tin and copper and is formed on at least one surface side of the main-body portion.03-25-2010
20090156409FAULT CURRENT LIMITER INCORPORATING A SUPERCONDUCTING ARTICLE - A fault current limiter (FCL) article is disclosed including a superconducting tape segment that includes a substrate, a buffer layer overlying the substrate, and a high temperature superconducting (HTS) layer overlying the buffer layer, wherein the superconducting tape segment forms a meandering path that is continuous having a plurality of windings. The article also includes a shunting circuit electrically connected to the superconducting tape segment.06-18-2009
20090124505SUPERCONDUCTING CABLE - There is provided a superconducting cable allowing a simple configuration to absorb an amount of contraction of normal conducting wire caused as it is cooled. The present superconducting cable has a superconducting layer (a superconducting conductor layer, a superconducting shield layer and a normal conducting layer (a normal conducting conductor layer, a normal conducting shield layer) disposed at at least one of inner and outer sides of the superconducting layer. The superconducting cable has a stress relaxation layer at an inner side of the normal conducting layer, and the superconducting cable has the stress relaxation layer absorb an amount of radial contraction of the normal conducting layer caused as it is cooled by a coolant.05-14-2009
20090011941Precursor of Nb3Sn Superconducting Wire Produced by Powder Process and Nb3Sn Superconducting Wire Produced by Powder Process - There is provided a Nb01-08-2009
20130165326SUPERCONDUCTING CABLE LINE - In a superconducting cable line in which a superconducting cable is connected to a terminal connecting part or an intermediate connecting part, an offset part in which a superconducting cable is laid in a curved-shape is provided near the terminal connecting part or the intermediate connecting part. Further, when it is assumed that the superconducting cable is movable in the offset part, an external tube of the superconducting cable is fixed such that a maximum amplitude part which maximizes the amount of movement of the superconducting cable following thermal expansion and contraction of a cable core becomes immovable.06-27-2013
20090170709Method for producing a superconductive electrical conductor - A method is provided for producing a superconductive electrical conductor, in which a layer of an yttrium-barium-copper oxide (YBCO) is applied as a superconductive material onto a textured metal substrate, and is subjected to a heat treatment. In order to produce a wire-shaped conductor, a textured metal substrate, provided as a strip (07-02-2009
20080274900Sintered Body, Superconducting Apparatus, Method of Manufacturing Sintered Body, Superconducting Wire and Method of Manufacturing Superconducting Wire - A method of manufacturing a sintered body, which is a method of manufacturing a sintered body containing Mg and B, comprises the arrangement and heat treatment steps of arranging Mg powder (11-06-2008
20110136672Superconductors with improved mecanical strength - A hollow tube (06-09-2011
20100160169Superconducting Thin Film Material, Superconducting Wire, and Method of Manufacturing the Same - A superconducting thin film material is provided, including a first superconducting thin film having a surface subjected to smoothing and a second superconducting thin film formed on the surface of the first superconducting thin film subjected to the smoothing. Further, a superconducting wire is provided, including a substrate, an intermediate layer formed on the substrate, and a superconducting layer formed on the intermediate layer, wherein the superconducting layer is made of the superconducting thin film material described above. Furthermore, a method of manufacturing the superconducting thin film material and a method of manufacturing the superconducting wire are provided.06-24-2010
20120108436SUBSTRATE, METHOD OF PRODUCING SUBSTRATE, SUPERCONDUCTING WIRE, AND METHOD OF PRODUCING SUPERCONDUCTING WIRE - A substrate of the present invention includes a copper layer, an alloy layer containing copper and nickel, formed on the copper layer, a nickel layer formed on the alloy layer, and an intermediate layer formed on the nickel layer. The concentration of nickel in the alloy layer at the interface between the alloy layer and the nickel layer is greater than the concentration of nickel in the alloy layer at the interface between the alloy layer and the copper layer. According to the present invention, there can be provided a substrate that allows the AC loss of a superconducting wire to be reduced, a method of producing a substrate, a superconducting wire, and a method of producing a superconducting wire.05-03-2012
20100099573RARE EARTH-TYPE TAPE-SHAPED OXIDE SUPERCONDUCTOR AND A COMPOSITE SUBSTRATE USED FOR THE SAME - This invention provides a rare earth-type tape-shaped oxide superconductor having excellent mechanical strength and superconducting properties and a composite substrate using for the same. Non-oriented and non-magnetic Ni-9 at % W alloy tapes (04-22-2010
20120108435JOINT OF SUPERCONDUCTING WIRES AND METHOD FOR JOINING SUPERCONDUCTING WIRES - Provided is a superconducting apparatus, including a joint of superconducting wires having high electric conduction characteristics and a superconducting magnet or the like. The superconducting joint comprises a plurality of superconducting wires and a sinter which integrates the plurality of superconducting wires. Herein, at least any one of the superconducting wires is a MgB05-03-2012
20080274901COMPOSITE ELECTRICAL CONDUCTORS AND METHOD FOR THEIR MANUFACTURE - An elongate composite electrical conductor with at least one superconducting core region including processed core material surrounded by sheath material such as Cu. The processed core material has a peripheral portion of ex situ reacted MgB11-06-2008
20090018023Method of manufacturing bismuth-based oxide superconductor and superconducting wire - An object of the present invention is to provide a method of manufacturing a bismuth-based oxide superconductor capable of obtaining a high critical current density and a superconducting wire containing a bismuth-based oxide superconductor manufactured by this method.01-15-2009
20080293575Superconducting Cable - A superconducting cable enables the cooling of the superconducting conductor with high efficiency and has a sufficient insulating strength. A method of controlling the temperature of the coolants used in the cable is offered. The superconducting cable comprises a heat-insulated pipe that houses a cable core provided with a superconducting conductor made of a superconducting material. The cable core is also provided with a poorly heat-conductive pipe placed at the outer side of the outer circumference of the superconducting conductor. The inside and outside of the poorly heat-conductive pipe are separately filled with different types of coolants having different purposes. The poorly heat-conductive pipe is filled with a conductor-use coolant for cooling the superconducting conductor so as to maintain it at the superconducting state. The heat-insulated pipe is filled with an insulation-use coolant for performing electric insulation of the superconducting conductor.11-27-2008
20090264297GRANULAR SUPERCONDUCTING JOINT - A superconducting joint that structurally binds a first superconducting segment to a second superconducting segment. The first and second superconducting segment each include corresponding areas containing a granular superconducting substance formed by a first element and a second element. The superconducting joint includes a solid non-superconducting binding formed from a source of the first element and a source of the second element combined to produce the granular superconducting substance around the solid non-superconducting binding to permit for the flow of superconducting current through the first superconducting segment and the second superconducting segment.10-22-2009
20090186769SUPERCONDUCTIVE WIRE, PROCESSES OF MANUFACTURE AND USES THEREOF - An electrical component comprises a superconductive wire, the wire comprising a first wire segment joined to a second wire segment, wherein the first wire segment and the second wire segment differ in at least one property selected from the group consisting of magnetic field tolerance, temperature tolerance, ac loss, and strain tolerance, and wherein the magnetic field tolerance is measured by the relationship of critical current Ic to magnetic field H at a given temperature T below critical temperature Tc, the temperature tolerance is measured by the relationship of critical current Ic to temperature T at a given magnetic field below critical magnetic field Hc, the ac loss is measured by the amount of ac loss versus the frequency and magnitude of applied ac currents and fields, and the strain tolerance is measured by critical current Ic degradation with strain.07-23-2009
20090111700Superconducting Strip Having Metal Coating Layer And Method Of Manufacturing The Same - Disclosed herein is a superconducting strip having a metal coating layer and a method of manufacturing the superconducting strip. The method of manufacturing the superconducting strip includes: washing a superconducting thin film, a stabilizing substrate and an anti-bonding substrate with alcohol; forming a metal coating layer on each of the superconducting thin film and stabilizing substrate; adhering the superconducting thin film and stabilizing substrate to each other such that the metal coating layer formed on the superconducting thin film faces the metal coating layer formed on the stabilizing substrate; disposing the anti-bonding substrate on an outside of the stabilizing substrate and then winding the anti-bonding substrate such that the anti-bonding substrate and the stabilizing substrate are closely adhered to each other by winding the anti-bonding substrate around a bobbin under a predetermined tension; and heat-treating the superconducting thin film and stabilizing substrate such that they are bonded to each other by the metal coating layer disposed therebetween.04-30-2009
20080318794Superconductive wire and method for producing the same - A superconductive wire wherein the superconductive wire has a core portion containing magnesium diboride as the main component and a continuous metallic sheath firmly adhered to the core portion; the core portion is kept substantially vacuum; and the content of an inert gas such as an Ar gas contained in the core portion is in the range of 0.00002 to 10 ppm. Further, disclosed is a method for producing a superconductive wire, wherein the method comprises the steps of mixing powder of a source material constituting magnesium diboride to form a core portion of the superconductive wire in an inert gas, filling a pipe with the mixed material powder in vacuum environment, sealing the pipe with vacuum after filled with the material powder, forming magnesium diboride powder by heating the vacuum-sealed pipe (sheath), and forming the core portion by wiredrawing the pipe in the state where the magnesium diboride powder is sealed with vacuum, and the core portion firmly sticks to the wiredrawn metallic pipe. The core portion is kept vacuum, and the content of an inert gas contained in the core portion is in the range of 0.00002 to 10 ppm.12-25-2008
20090137399METHOD OF FABRICATING SUPERCONDUCTING WIRE AND SUPERCONDUCTING APPARATUS - 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.05-28-2009
20100160170METHOD FOR POLISHING TAPE-SHAPED SUBSTRATE FOR OXIDE SUPERCONDUCTOR, OXIDE SUPERCONDUCTOR, AND BASE MATERIAL FOR OXIDE SUPERCONDUCTOR - A surface polishing method for enhancing crystal orientation on the surface of a tapelike metal substrate in order to enhance the critical current of a superconducting thin film. In an oxide superconductor comprising a tapelike substrate, an intermediate layer formed on the tapelike substrate, and an oxide superconducting thin film layer formed on the intermediate layer, the method for polishing a surface to be polished of the tapelike substrate comprises a step for polishing the surface to be polished while traveling the tapelike substrate continuously, wherein an initial polishing step and a finish polishing step are included. Ultimately, the average surface roughness Ra of the polished surface is 2 nanometer or less and the in-plane orientation Δφ is 5° or less.06-24-2010
20090298696Low resistance splice for high temperature superconductor wires - Under one aspect, a laminated, spliced superconductor wire includes a superconductor joint, which includes (i) first and second superconductor wires, each wire including a substrate, a superconductor layer overlying the substrate, and a cap layer overlying the superconductor layer; and (ii) a conductive bridge, the conductive bridge including a substrate, a superconductor layer overlying the substrate, and a cap layer overlying the superconductor layer, wherein the cap layer of the conductive bridge is in electrically conductive contact with a portion of the cap layer of each of the first and second superconductor wires through an electrically conductive bonding material. The spliced wire also includes (b) a stabilizer structure surrounding at least a portion of the superconductor joint, wherein the superconductor joint is in electrical contact with the stabilizer structure; and (c) a substantially nonporous electrically conductive filler, wherein the filler substantially surrounds the superconductor joint.12-03-2009
20100216645Superconducting connection between MgB2 superconducting wires via a compressed element made from HTS powder - A method for connecting two or more superconducting wires (08-26-2010
20130217581OXIDE SUPERCONDUCTIVITY WIRE MATERIAL AND METHOD OF MANUFACTURING THEREOF - Provided is an oxide superconducting wire material, wherein pinning of magnetic flux, under an environment in which magnetic field is applied, can be conducted efficiently towards any magnetic-field applying angle direction, to secure a high superconductive property. The oxide superconducting wire material (08-22-2013
20100099572SUPERCONDUCTING POWER CABLE CAPABLE OF QUENCH DETECTION AND QUENCH DETECTION SYSTEM USING THE SAME - Disclosed is a superconducting power cable capable of quench detection, and a quench detection system using the superconducting power cable. The superconducting power cable capable of quench detection includes a former; a superconducting conductor layer composed of a superconducting wire and surrounding the former; a conductor layer quench detection coil interposed between the former and the superconducting conductor layer and surrounding the former; an insulating layer surrounding the superconducting conductor layer; and a shielding layer surrounding the insulating layer. This superconducting power cable may detect quench generated during its operation in real time.04-22-2010
20130130915SUBSTRATE FOR SUPERCONDUCTING WIRE ROD, SUPERCONDUCTING WIRE ROD, AND METHOD FOR PRODUCING SUPERCONDUCTING WIRE ROD - The phase transition temperature, at which the crystal lattice of LMO that constitutes an oxide layer as an intermediate layer or as a part of an intermediate layer becomes cubic, is lowered. A substrate for a superconducting wire rod includes an oxide layer (LMO layer (05-23-2013
20090069187Rare Earth-Containing Tape-Shaped Oxide Superconductor - On a first intermediate layer provided on a substrate and having an excellent surface smoothness, are formed a second intermediate layer and an YBCO superconductor layer having excellent properties. An YBCO superconductor (03-12-2009
20090082210SUPERCONDUCTING-CABLE CORE AND SUPERCONDUCTING CABLE - The invention offers a superconducting-cable core that comprises a superconducting conductor and an insulating layer covering the outer circumference of the superconducting conductor. The superconducting-cable core is classified longitudinally into a cable portion and a jointing-structure-forming portion that is located at each end of the cable portion and that serves as the portion in which a complementary insulating structure is formed when jointed with another conducting member. Of the superconducting-cable core, the jointing-structure-forming portion is at least within the range from the end of the superconducting-cable core to the end of the complementary insulating structure. The jointing-structure-forming portion has an insulating layer whose insulation performance is higher than that of the insulating layer of the cable portion, so that even when the cable itself cannot be designed with a sufficient margin in its insulation, a highly reliable joint can be formed.03-26-2009
20110143945METHOD FOR THE PRODUCTION OF A SUPERCONDUCTING ELECTRICAL CONDUCTOR, AND A SUPERCONDUCTING CONDUCTOR - A method is specified for production of a superconducting electrical conductor which has a ceramic material as the superconducting material. A metal ribbon is formed around a multiplicity of flat strips of a mount which is coated with the superconducting ceramic material, running longitudinally to form a tube having a slot which runs in the longitudinal direction, and whose edges which rest on one another on the slot are welded to one another The tube which is closed by the welding process is then reduced to a diameter which corresponds approximately to the envelopes of all the strips which are located in the tube.06-16-2011
20100016169METHOD FOR POLISHING TAPE-SHAPED SUBSTRATE FOR OXIDE SUPERCONDUCTOR, OXIDE SUPERCONDUCTOR, AND BASE MATERIAL FOR OXIDE SUPERCONDUCTOR - An oxide superconductor member is composed of a tape-shaped substrate, an intermediate layer formed on this substrate and an oxide superconductor thin film layer formed on this intermediate layer. A surface of the tape-shaped substrate is polished by continuously running the tape-shaped substrate. The polishing step includes initial polishing process and finishing process which are carried out such that the average surface roughness Ra of the substrate becomes 2 nanometers or less and the in-plane directionality of the intermediate layer becomes 5° or less after the polishing step.01-21-2010
20100179063SUPERCONDUCTING ARTICLES AND METHODS OF FABRICATION THEREOF WITH REDUCED AC MAGNETIC FIELD LOSSES - A superconducting article is provided which includes a superconducting tape assembly. The superconducting tape assembly includes a superconducting tape layer, having one or more superconducting tapes, and a high-permeability magnetic material layer coupled to the superconducting tape layer. The high-permeability magnetic material layer includes a high-permeability magnetic material which remains magnetically soft at a critical temperature T07-15-2010
20100137142Method of Manufacturing Round Wire Using Superconducting Tape and Round Wire Manufactured Using the Superconducting Tape - Disclosed herein is a method of manufacturing round wire using superconducting tape, including the steps of: slitting superconducting tape into superconducting tape strips; silver-coating the slit superconducting tape strips; laminating the silver-coated superconducting tape strips to form a superconducting tape laminate having a square cross-section; holding the superconducting tape laminate; heat-treating the fixed superconducting tape laminate to cause diffusion junction between silver; and copper-plating the heat-treated superconducting tape laminate to have a circular section. The method is advantageous in that, since it is formed by slitting, silver-coating and laminating conventional superconducting tape, its superconducting layer can be protected, and it has a circular cross-section, so that it can be easily joined and wound, with the result that it is expected that, like general copper wires, its application fields will be enlarged because it can be wound in a solenoid shape at the time of magnetic winding.06-03-2010
20100099571Superconducting cable - A superconducting cable (04-22-2010
20090275479SUPERCONDUCTING OXIDE MATERIAL, PROCESS FOR PRODUCING THE SAME, AND SUPERCONDUCTING WIRE AND SUPERCONDUCTION APPARATUS BOTH EMPLOYING THE SUPERCONDUCTING MATERIAL - The invention offers a method of producing a (Bi, Pb)-2223-based oxide superconducting material. The method is for producing a (Bi, Pb)11-05-2009
20110263432Tape-type superconductor with anisotropy of critical currents - A tape-type superconductor (10-27-2011
20120309632FACETED CERAMIC FIBERS, TAPES OR RIBBONS AND EPITAXIAL DEVICES THEREFROM - A crystalline article includes a single-crystal ceramic fiber, tape or ribbon. The fiber, tape or ribbon has at least one crystallographic facet along its length, which is generally at least one meter long. In the case of sapphire, the facets are R-plane, M-plane, C-plane or A-plane facets. Epitaxial articles, including superconducting articles, can be formed on the fiber, tape or ribbon.12-06-2012
20110190139METHOD OF PRODUCING Nb3Sn SUPERCONDUCTING WIRE ROD, AND Nb3Sn SUPERCONDUCTING WIRE ROD - A method of producing a Nb08-04-2011
20110136673PRECURSOR WIRE OF OXIDE SUPERCONDUCTING WIRE AND PRODUCTION METHOD THEREOF AND OXIDE SUPERCONDUCTING WIRE PRODUCED BY USING THE PRECURSOR WIRE - A precursor wire of an oxide superconducting wire includes a first sheath made of silver or silver alloy, a center portion in the first sheath, and a plurality of peripheral segments placed close to one another at the inside of the first sheath so as to surround the center portion. Each of the peripheral segments is formed as a monofilamentary segment that has an arch-shaped cross section and that includes a ribbon-shaped filament made of a precursor of an oxide superconductor and covered with a second sheath made of silver or silver alloy. The multiple peripheral segments are placed in a multilayer state in the form of concentric circles such that wide-width surfaces of the peripheral segments surround the center portion.06-09-2011
20110218113SUBSTRATE FOR FABRICATING SUPERCONDUCTIVE FILM, SUPERCONDUCTIVE WIRES AND MANUFACTURING METHOD THEREOF - Provided is a substrate for superconductive film formation, which includes a metal substrate, and an oxide layer formed directly on the metal substrate, containing chromium oxide as a major component and having a thickness of 10-300 nm and an arithmetic average roughness Ra of not more than 50 nm. A method of manufacturing a substrate for superconductive film formation, which includes forming an oxide layer directly on a metal substrate, the oxide layer containing chromium oxide as a major component and having a thickness of 10-300 nm and an arithmetic average roughness Ra of not more than 50 nm.09-08-2011
20110218112Superconducting Wire - Disclosed herein is a superconducting wire which is used in, for example, superconducting magnet energy storage systems. The superconducting wire includes: a wire comprising a metal substrate, a superconducting layer and a buffer interposed between the metal substrate and the superconducting layer; and a stabilizer layer plated on the wire, wherein an epoxy resin insulating layer coats the entire surface of the stabilizer layer. The superconducting wire makes it possible to reduce damage to an insulating material when forming the insulating material during the production of the superconducting wire, and it has a uniform surface and can be produced in a simple manner.09-08-2011
20100197505SUPERCONDUCTING WIRE WITH LOW AC LOSSES - A multilayer superconducting wire 08-05-2010
20120178630TAPE BASE MATERIAL FOR A SUPERCONDUCTING WIRE ROD, AND SUPERCONDUCTING WIRE ROD - Provided is a superconducting wire rod that is reduced in cost due to a thinner/simpler middle layer, without the properties of the superconducting wire rod (for example critical current properties) being negatively affected. A provided tape-shaped base material for superconducting wire rods comprises a diffusion preventing layer, which comprises an oxide of a group 4 (4A) element, formed on a substrate that contains iron, nickel, or chromium. Specifically, the diffusion preventing layer comprises TiO07-12-2012
20120040840METHOD FOR PRODUCING METAL LAMINATED SUBSTRATE FOR OXIDE SUPERCONDUCTING WIRE, AND OXIDE SUPERCONDUCTING WIRE USING THE SUBSTRATE02-16-2012
20110105336RARE EARTH ELEMENT OXIDE SUPERCONDUCTIVE WIRE MATERIAL AND METHOD OF PRODUCING THE SAME - The present invention relates to a rare earth element oxide superconductive wire material improved in orientation by forming the bed layer by the MOD method. In the superconductive wire material (05-05-2011
20120010084LOW RESISTANCE SPLICE FOR HIGH TEMPERATURE SUPERCONDUCTOR WIRES - Under one aspect, a laminated, spliced superconductor wire includes a superconductor joint, which includes (i) first and second superconductor wires, each wire including a substrate, a superconductor layer overlying the substrate, and a cap layer overlying the superconductor layer; and (ii) a conductive bridge, the conductive bridge including a substrate, a superconductor layer overlying the substrate, and a cap layer overlying the superconductor layer, wherein the cap layer of the conductive bridge is in electrically conductive contact with a portion of the cap layer of each of the first and second superconductor wires through an electrically conductive bonding material. The spliced wire also includes (b) a stabilizer structure surrounding at least a portion of the superconductor joint, wherein the superconductor joint is in electrical contact with the stabilizer structure; and (c) a substantially nonporous electrically conductive filler, wherein the filler substantially surrounds the superconductor joint.01-12-2012
20120015816CURRENT TERMINAL STRUCTURE OF SUPERCONDUCTING WIRE AND SUPERCONDUCTING CABLE HAVING THE CURRENT TERMINAL STRUCTURE - A current terminal structure of a superconductor has a former, and a superconducting wire wound around the former in one or more layers and including a substrate and a superconducting layer formed on the substrate. A first layer superconducting wire wound around immediately above the former is arranged so that a substrate side thereof becomes outside and a superconducting layer side thereof becomes inside. A surface of the superconducting layer at an end of the first layer superconducting wire, which is directed toward the inside, and part of a surface of the superconducting layer of a connection superconducting wire, which is directed toward the outside, are faced and connected to each other.01-19-2012
20120021917SUBSTRATE FOR SUPERCONDUCTING WIRING, SUPERCONDUCTING WIRING AND PRODUCTION METHOD FOR SAME - Disclosed is a low-cost metal substrate which is resistant to high-temperature oxidation, has excellent strength, is non-magnetic and is ideal for a high-temperature superconducting wire to be used at or lower than liquid nitrogen temperature. Austenitic stainless steel containing 0.4 weight or more of nitrogen is used as the metal substrate for the superconducting wire. After heat treatment of 700 to 950° C. in the high-temperature superconducting layer formation step is carried out, the metal substrate has an extremely high 0.20 proof stress at liquid nitrogen temperature.01-26-2012
20120165199TAPE BASE FOR SUPERCONDUCTING WIRE, AND SUPERCONDUCTING WIRE - A tape-shaped base for a superconducting wire, which simplifies the intermediate layer and thus enables production of a superconducting wire at lower cost, and which is capable of improving the characteristics (such as electrical conduction and handling properties) of a superconducting wire; and a superconducting wire. Specifically disclosed is a tape-shaped base for a superconducting wire, which is obtained by forming an intermediate layer on a metal substrate. In the tape-shaped base for a superconducting wire a biaxially oriented layer of the intermediate layer is configured of a niobium monoxide (NbO) layer that is formed by depositing vapor deposition particles from a vapor deposition source on a film formation surface.06-28-2012
20120214676SUPERCONDUCTOR CABLE AND AC POWER TRANSMISSION CABLE - There is provided a superconductive cable wherein an efficiency of an electric power transmission is increased to a maximum and the superconductive cable is miniaturized by strengthening a longitudinal magnetic field in a superconductive material.08-23-2012
20120214675SUPERCONDUCTING CABLES AND METHODS OF MAKING THE SAME - Superconducting cables employ one or more superconducting tapes wound around a former. A compact superconducting cable is configured using a former having a small diameter, e.g., less than 10 millimeters. A flexible superconducting cable is configured with a former made of a flexible material. Superconducting tape conductors are wound around the former, with the superconducting layer in compression on the inside of the wind turns of the wind, to prevent irreversible damage to the superconductor. A layer of solder is on the superconducting tape(s) or solder sheaths are wound between tape conductors in each layer. The one or more solder layers or sheaths are melted to cause the solder to flow within the structure, to bond some or all of the superconducting tape conductors together and form a mechanically strong cable with an enhanced level of electrical connectivity between tapes in the cable.08-23-2012
20100197506TAPE-SHAPED OXIDE SUPERCONDUCTOR - This invention provides a tape-shaped oxide superconductor which can prevent the diffusion of elements constituting a metallic substrate into a superconducting layer and cracking of an intermediate layer and improve the orientation of the superconducting layer. A 15 to 100 nm-thick Ce—Gd—O-based oxide layer (08-05-2010
20120252680HIGH-TEMPERATURE SUPERCONDUCTING TAPE - Disclosed herein is a high-temperature superconducting tape, including: a substrate; a buffer layer formed on the substrate; and a high-temperature superconducting layer formed on the buffer layer, wherein the substrate is made of SUS310s or stainless steel containing 0.01-1% of silicon (Si) and 1-5% of molybdenum (Mo) and has an average metal crystal grain size of 12 μm or less, and the high-temperature superconducting layer is made of a ReBCO (ReBa10-04-2012
20100273657SUPERCONDUCTING STRUCTURE FOR A FAULT CURRENT-LIMITER - A superconducting article and method of fabrication are provided. The superconducting article includes a superconducting structure, which includes a superconducting conductor and multiple discrete overlay regions of higher heat capacity than the superconducting conductor. The multiple discrete overlay regions are disposed along a length of the superconducting conductor, in thermal contact with the superconducting conductor, and positioned to define a heat modulation pattern along the length of the superconducting structure. The multiple discrete overlay regions create a temperature distribution favorable to transition of the superconducting structure under load from a normal resistive state to a superconductive state by facilitating formation of a continuous superconducting path along the length of the superconducting structure. In one implementation, the multiple discrete overlay regions are multiple island regions periodically disposed adjacent to opposing first and second edges of the superconducting conductor along the length of the superconducting conductor.10-28-2010
20090088325High performance electrical, magnetic, electromagnetic and electrooptical devices enabled by three dimensionally ordered nanodots and nanorods - Novel articles and methods to fabricate same with self-assembled nanodots and/or nanorods of a single or multicomponent material within another single or multicomponent material for use in electrical, electronic, magnetic, electromagnetic and electrooptical devices is disclosed. Self-assembled nanodots and/or nanorods are ordered arrays wherein ordering occurs due to strain minimization during growth of the materials. A simple method to accomplish this when depositing in-situ films is also disclosed. Device applications of resulting materials are in areas of superconductivity, photovoltaics, ferroelectrics, magnetoresistance, high density storage, solid state lighting, non-volatile memory, photoluminescence, thermoelectrics and in quantum dot lasers.04-02-2009
20120258863METALORGANIC CHEMICAL VAPOR DEPOSITION (MOCVD) PROCESS AND APPARATUS TO PRODUCE MULTI-LAYER HIGH-TEMPERATURE SUPERCONDUCTING (HTS) COATED TAPE - An MOCVD apparatus and process for producing multi-layer HTS-coated tapes with increased current capacity which includes multiple liquid precursor sources, each having an associated pump and vaporizer, the outlets of which feed a multiple compartment showerhead apparatus within an MOCVD reactor. The multiple compartment showerhead apparatus is located in close proximity to an associated substrate heater which together define multiple deposition sectors in a deposition zone.10-11-2012
20120190556PROCESS FOR APPLYING POLYMER TO INDIVIDUAL CONDUCTORS AND HTS COMPOSITE PRODUCED FROM THE INDIVIDUAL CONDUCTORS - A process applies a polymer to at least one individual conductor of a high-temperature superconductor (HTS) composite in the manner of a Roebel conductor. The at least one individual conductor includes a substrate and a superconducting layer. Particles are applied to the individual conductor. Then, a thermal treatment is performed which results in partial or complete melting of the particles and, after cooling, in a polymer layer on the individual conductor.07-26-2012
20120190555CONSTRUCTION OF SUPERCONDUCTING MULTI-CORE BILLET AND METHOD FOR MANUFACTURING SUPERCONDUCTING MULTI-CORE WIRES - A physical construction of a superconducting multi-core billet is provided together with a method for manufacturing a superconducting multi-core wire to offer reduction of manufacturing time (cost) and low frequency of occurrence of wire break during diameter-reduction drawing. The superconducting multi-core billet by the present invention has such a construction that a plurality of vertical holes are made in a billet 07-26-2012
20110124508RE-TYPE OXIDE SUPERCONDUCTING WIRE AND PROCESS FOR PRODUCING THE SAME - A RE-type oxide superconducting wire having excellent angular dependence for magnetic field of Jc is obtained by finely dispersing magnetic flux pinning centers into a superconductor. A mixed solution which comprises a metal-organic complex solution including a metal element which composes a RE-type oxide superconductor whose Ba content is reduced and a metal-organic complex solution including at least one or more kinds of metals which are selected from Zr, Ce, Sn, or Ti which has a larger affinity for Ba is coated onto an intermediate layer of a composite substrate, and the assembly is then calcined to disperse artificially and finely oxide particles (magnetic flux pinning centers) including Zr. Thus, the angular dependence for magnetic field (Jc05-26-2011
20120329658METHOD OF FORMING CERAMIC WIRE, SYSTEM OF FORMING THE SAME, AND SUPERCONDUCTOR WIRE USING THE SAME - Provided is a method of forming a ceramic wire. In the method, a ceramic precursor film is deposited on a wire substrate. Then, the wire substrate on which the ceramic precursor film is deposited is treated by heating. For treating the wire substrate by heating, a temperature of the wire substrate and/or an oxygen partial pressure of the wire substrate are controlled such that the ceramic precursor film is in a liquid state and an epitaxy ceramic film is formed from the liquid ceramic precursor film on the wire substrate.12-27-2012
20120270737Stable and Metastable Nanowires Displaying Locally Controllable Properties - Vapor-liquid-solid growth of nanowires is tailored to achieve complex one-dimensional material geometries using phase diagrams determined for nanoscale materials. Segmented one-dimensional nanowires having constant composition display locally variable electronic band structures that are determined by the diameter of the nanowires. The unique electrical and optical properties of the segmented nanowires are exploited to form electronic and optoelectronic devices. Using gold-germanium as a model system, in situ transmission electron microscopy establishes, for nanometer-sized Au—Ge alloy drops at the tips of Ge nanowires (NWs), the parts of the phase diagram that determine their temperature-dependent equilibrium composition. The nanoscale phase diagram is then used to determine the exchange of material between the NW and the drop. The phase diagram for the nanoscale drop deviates significantly from that of the bulk alloy.10-25-2012
20100179064POWER CABLE COMPRISING HTS TAPE(S) - The invention relates to power cable comprising, at least one HTS-tape and a cooling system comprising a fluid cooling medium for cooling the at least one HTS-tape. The at least one HTS-tape being at least partly surrounded by a cooling layer comprising said fluid cooling medium and an electrical insulation at least partly impregnated with said fluid medium.07-15-2010
20110287943BASE FOR SUPERCONDUCTING WIRE AND SUPERCONDUCTING WIRE - A base for a superconducting wire, the base includes: a metal substrate; a bed layer constituted of nesosilicate and formed on the metal substrate; and an oriented layer formed on the bed layer.11-24-2011
20130012395SUPERCONDUCTING WIRE AND THE PROCESS OF MANUFACTURE - A superconducting wire which is obtained by a heat treatment at a lower temperature than related art and has a high critical current density, and the process of manufacture can be provided by causing a compound expressed by the following formula (1) to be contained:01-10-2013
20130012396COVERING MATERIAL, SUPERCONDUCTING ELECTRIC WIRE AND ELECTRICAL DEVICE - Provided is a covering material, in which the covering material is a covering material for covering a superconducting wire, and a tensile modulus of elasticity at 25° C. is 6.0 GPa or less. Further provided is also a superconducting electric wire, which includes the covering material and a superconducting wire covered with the covering material. Still further provided is an electrical device produced by using the superconducting electric wire.01-10-2013
20130023419COVERING MATERIAL, SUPERCONDUCTING ELECTRIC WIRE AND ELECTRICAL DEVICE - Provided is a covering material, in which the covering material is a covering material for covering a superconducting wire, a tensile strength at break thereof at −196° C. is 12.0 N/3 mm or more, and a tensile elongation at break thereof at −196° C. is 12% or more. The covering material preferably includes a backing made of a polyimide resin. The covering material preferably includes a viscoelastic layer formed on one surface of the backing.01-24-2013
20120283105Superconducting Strip Having Metal Coating Layer and Method Of Manufacturing the Same - A rolled superconducting article includes: a cylindrical bobbin having a post in a cylindrical shape; a superconducting strip wound on the cylindrical bobbin in a rolled shape with a predetermined tension applied, wherein the superconducting strip is formed of a superconducting thin film, which is coated with a metal coating layer on a facing surface of the superconducting thin film, and a stabilizing substrate wound on the superconducting strip, wherein the stabilizing substrate is coated with a metal coating layer on a facing surface of the stabilizing substrate; an anti-bonding substrate wound on an outer surface of the stabilizing substrate with a predetermined tension applied; wherein the superconducting thin film is thermally adhered to the stabilizing substrate by heat-treating the rolled superconducting strip with the anti-bonding substrate wound therearound.11-08-2012
20120015815COATED CONDUCTOR - A coated conductor with a substantially round cross section has a high temperature superconductor layer which is sandwiched between an inner substrate layer and an outer substrate layer to place the high temperature superconductor layer in the region of neutral strain axis.01-19-2012
20120028809Textured Powder Wires - A method for fabricating a wire from textured powder includes compressing a powder comprising a plurality of particles into a ribbon. The method further includes encasing the ribbon between two foil sheets to create a sheet of encased ribbon. The method additionally includes rolling the encased ribbon into a substantially cylindrical undrawn wire. The method further includes drawing the undrawn wire to create a substantially cylindrical wire having a diameter less than a diameter of the substantially cylindrical undrawn wire.02-02-2012
20120028808SUPERCONDUCTOR SUPERIOR IN DEPENDENCY OF CRITICAL CURRENT DENSITY ON MAGNETIC FIELD ANGLE - An oxide superconducting tape comprised of a substrate on which a GdBa02-02-2012
20130196857SUPERCONDUCTING CABLE - An AC superconducting cable with an insulating layer on the external circumference of a conductor, and wherein: the insulating layer includes a first insulating layer, a second insulating layer and a third insulating layer, from the inside layer to the outside layer; the insulating layer is impregnated with liquid nitrogen; the product of the dielectric constant ∈08-01-2013
20130203604Superconducting structure comprising coated conductor tapes, in particular stapled perpendicularly to their substrate planes - A superconducting structure (08-08-2013
20120094841METHOD OF PREPARING MgB2 SUPERCONDUCTING WIRE AND THE MgB2 SUPERCONDUCTING WIRE PREPARED THEREBY - Disclosed herein is a method of preparing a MgB04-19-2012
20130210635HIGH TEMPERATURE SUPERCONDUCTING TAPE CONDUCTOR HAVING HIGH CRITICAL AMPACITY - The invention relates to a high temperature superconducting tape conductor having a flexible metal substrate that comprises at least one intermediate layer disposed on the flexible metal substrate and comprising terraces on the side opposite the flexible metal substrate, wherein a mean width of the terraces is less than 1 μm and a mean height of the terraces is more than 20 nm, and that comprises at least one high temperature superconducting layer disposed on the intermediate layer, which is disposed on the at least one intermediate layer and comprises a layer thickness of more than 3 μm. The ampacity of the high temperature superconducting tape conductor relative to the conductor width is more than 600 A/cm at 77 K.08-15-2013

Patent applications in class Superconducting wire, tape, cable, or fiber, per se

Patent applications in all subclasses Superconducting wire, tape, cable, or fiber, per se