Superconductor Patents (Class 427/62)
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Patent number: 8647705Abstract: A method for forming a superconductive article is disclosed. According to one method, a substrate is provided, the substrate having an aspect ratio of not less than about 1×103, forming a buffer layer overlying the substrate, forming a superconductor layer overlying the buffer layer, and characterizing at least one of the substrate, the buffer layer and the superconductor layer by x-ray diffraction. In this regard, x-ray diffraction is carried out such that data are taken at multiple phi angles. Data acquisition at multiple phi angles permits robust characterization of the film or layer subject to characterization, and such data may be utilized for process control and/or quality control. Additional methods for forming superconductive articles, and for characterizing same with XRD are also disclosed.Type: GrantFiled: May 7, 2012Date of Patent: February 11, 2014Assignee: SuperPower, Inc.Inventors: Jodi Lynn Reeves, David M. Gibson, Walter M. Gibson, Huapeng Huang
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Patent number: 8649834Abstract: A layered superconductor device includes multiple layers of a single crystal superconducting material having intermittent layers of superconducting material dispersed in a pattern with a second material such that each layer of the multiple layers a single crystal superconducting material are interconnected via superconducting material, allowing for a continuous current path, and a thickness of the superconducting material never exceeds a first predetermined thickness.Type: GrantFiled: September 13, 2012Date of Patent: February 11, 2014Assignee: The United States of America as represented by the Secretary of the NavyInventor: Thomas O. Jones
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Publication number: 20140038829Abstract: A superconducting thin film material exhibiting excellent superconducting properties and a method of manufacturing the same are provided. A superconducting thin film material includes a substrate, and a superconducting film formed on the substrate. The superconducting film includes an MOD layer formed by an MOD process, and a gas-phase-formed layer formed on the MOD layer by a gas-phase process. Since the MOD layer is formed first and then the gas-phase-formed layer is formed in this manner, degradation of the properties of the gas-phase-formed layer due to heat treatment in the step of forming the MOD layer (heat treatment in the MOD process) can be prevented.Type: ApplicationFiled: May 9, 2012Publication date: February 6, 2014Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Kei Hanafusa, Genki Honda, Kotaro Ohki, Tsuyoshi Nakanishi, Takahiro Taneda, Tatsuoki Nagaishi
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Publication number: 20140024535Abstract: A manufacturing apparatus which manufactures a superconducting wire rod, includes first, second, and third chambers which are connected in series, an exhaust device which exhaust air from the first to third chambers, a carrier device which carries a substrate such that the substrate passes through the first to third chambers in this order, a first film formation device which forms a metal layer on the substrate in the first chamber, a first gas supply device which supplies oxidation gas to the second chamber to oxidize a surface of the metal layer, and a second film formation device which forms an oxide layer on the metal layer, the surface of which has been oxidized, in the third chamber.Type: ApplicationFiled: January 23, 2013Publication date: January 23, 2014Applicant: KABUSHIKI KAISHA TOSHIBAInventor: KABUSHIKI KAISHA TOSHIBA
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Publication number: 20140011683Abstract: A composition of matter for a layered ionic superconductor comprising a plurality of layers of ions and electronic interaction charges, and having a substantially improved superconducting transition temperature is described. An aspect of the composition includes a first layer comprising a plurality of alkali ions and cesium ions in particular that is adjacent to a second layer comprising a plurality of halogen ions and fluorine ions in particular. The first and second layers contain electronic interaction charges and are separated by a predetermined perpendicular distance. Crystalline structure, ionic properties, superconducting transition temperature, and superfluid density for several embodiments including companion ionic species are described and illustrated. Methods for preparing the several embodiments are provided.Type: ApplicationFiled: July 6, 2012Publication date: January 9, 2014Inventors: Dale Richard Harshman, Anthony Thomas Fiory
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Patent number: 8623788Abstract: The present invention provides a method of making a high temperature superconductor having a doped, nanoparticulate pinning structure. The method includes providing a nanoparticulate pinning material, providing a cuprate material, doping the nanoparticulate pinning material with a dopant to form a doped nanoparticulate material, depositing a layer of the cuprate material on a substrate, and depositing a layer of the doped nanoparticulate material on the layer of cuprate material. The invention also provides a high temperature superconductor (HTS) having a doped, nanoparticulate pinning structure including a plurality of layers of a cuprate material and a plurality of layers of a doped nanoparticulate pinning material. At least one layer of the doped nanoparticulate pinning material is stacked between two layers of the cuprate material.Type: GrantFiled: January 11, 2013Date of Patent: January 7, 2014Assignee: The United States of America as represented by the Secretary of the Air ForceInventors: Paul N. Barnes, Timothy J. Haugan
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Publication number: 20130316908Abstract: Impurities are reduced in an oxide superconducting layer and in an interface between the oxide superconducting layer and an intermediate layer. A superconducting wire rod 1 has a structure including a substrate (10), an intermediate layer (20) formed on the substrate (10), a reaction suppressing layer (28) formed on the intermediate layer (20) and mainly containing polycrystalline SrLaFeO4+?1 or CaLaFeO4+?2, in which the ?1 and the ?2 each represent an amount of non-stoichiometric oxygen, and an oxide superconducting layer (30) formed on the reaction suppressing layer (28) and mainly containing an oxide superconductor.Type: ApplicationFiled: February 14, 2012Publication date: November 28, 2013Applicant: FURUKAWA ELECTRIC CO., LTD.Inventors: Hiroyuki Fukushima, Yuko Hayase, Yoshikazu Okuno, Eiji Kojima
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Patent number: 8571614Abstract: A superconducting integrated circuit, comprising a plurality of superconducting circuit elements, each having a variation in operating voltage over time; a common power line; and a plurality of bias circuits, each connected to the common power line, and to a respective superconducting circuit element, wherein each respective bias circuit is superconducting during at least one time portion of the operation of a respective superconducting circuit element, and is configured to supply the variation in operating voltage over time to the respective superconducting circuit element.Type: GrantFiled: October 12, 2010Date of Patent: October 29, 2013Assignee: Hypres, Inc.Inventors: Oleg A. Mukhanov, Alexander F. Kirichenko, Dmitri Kirichenko
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Patent number: 8530391Abstract: A device for coating at least one substrate or for producing at least one molding by means of at least one cold gas spraying pistol, wherein the cold gas spraying pistol and the substrate or molding to be coated are arranged in a vacuum chamber, and also a method for cold gas spraying relating thereto in such a manner that while eliminating the wire production, the coil winding and also the cast in procedure, a thoroughly compact coil without a degree of freedom of movement (elimination of the quench risk) can be produced, it is suggested that the particles have at least to some extent an electrically conducting, in particular superconducting, property and at least to some extent an electrically poorly conducting or electrically insulating property.Type: GrantFiled: April 29, 2009Date of Patent: September 10, 2013Assignee: Linde AktiengesellschaftInventor: Matthias Bohn
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Publication number: 20130231250Abstract: An oxide superconducting conductor of the invention is configured to include a substrate; and an oxide superconducting layer formed on the substrate. The oxide superconducting layer is an oxide superconductor being expressed by a composition formula of RE1Ba2Cu3Oy where RE represents a rare earth element and an expression of 6.5<y<7.1 is satisfied. The oxide superconducting layer has a different phase including Tb. The different phase is dispersed in the oxide superconducting layer.Type: ApplicationFiled: October 18, 2012Publication date: September 5, 2013Applicant: FUJIKURA LTD.Inventor: Mitsunori IGARASHI
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Publication number: 20130217581Abstract: 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 (100) is provided with a metal substrate (110), an intermediate layer (120) formed upon the metal substrate (110), and a REBaCuO-system superconductive layer (140) formed upon the intermediate layer (120). RE comprises one or more elements selected from Y, Nd, Sm, Eu, Gd, and Ho. Oxide particles including Zr are distributed within the superconductive layer (140) as magnetic-flux pinning points (145), and the mole ratio (y) of Ba included within the superconductive layer (140) is, when the mole ratio of Zr is assumed to be x, within a range of (1.2+ax)?y?(1.8+ax), wherein 0.5?a?2.Type: ApplicationFiled: October 26, 2011Publication date: August 22, 2013Inventors: Masateru Yoshizumi, Koichi Nakaoka, Yasuo Takahashi, Teruo Izumi, Yuh Shiohara, Yuji Aoki, Katsuhisa Kanbayashi
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Patent number: 8512799Abstract: There is established a superconducting magnet made of a high-temperature bulk superconductor and capable of trapping a high magnetic field with ease and stably. The superconducting magnet made of the high-temperature bulk superconductor, for use by trapping a magnetic field, is made of the bulk superconductor with an artificial hole therein, a low-melting metal impregnated into, and filling up at least the artificial hole, and a heat-conducting metal material embedded in portions of the high-temperature bulk superconductor, impregnated with, and filled with the low-melting metal. The superconducting magnet can be produced by a process involving the steps of providing the artificial hole in the high-temperature bulk superconductor, disposing the heat-conducting metal material in at least the artificial hole, applying a process of impregnating and filling up at least the artificial hole with the low-melting metal, and subsequently, executing a process of magnetizing.Type: GrantFiled: March 9, 2006Date of Patent: August 20, 2013Assignees: International Superconductivity Technology Center, The Juridical Foundation, Railway Technical Research Institute, The Juridical FoundationInventors: Masaru Tomita, Masato Murakami
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Patent number: 8512798Abstract: The present invention is a high-throughput, ultraviolet (UV) assisted metalorganic chemical vapor deposition (MOCVD) system for the manufacture of HTS-coated tapes. The UV-assisted MOCVD system of the present invention includes a UV source that irradiates the deposition zone and improves the thin film growth rate. The MOCVD system further enhances the excitation of the precursor vapors and utilizes an atmosphere of monatomic oxygen (O) rather than the more conventional diatomic oxygen (O2) in order to optimize reaction kinetics and thereby increase the thin film growth rate. In an alternate embodiment, a microwave plasma injector is substituted for the UV source.Type: GrantFiled: June 5, 2003Date of Patent: August 20, 2013Assignee: SuperPower, Inc.Inventors: Venkat Selvamanickam, Hee-Gyoun Lee
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Publication number: 20130196858Abstract: The invention pertains to creating new extremely low resistance (“ELR”) materials, which may include high temperature superconducting (“HTS”) materials. In some implementations of the invention, an ELR material may be modified by depositing a layer of modifying material unto the ELR material to form a modified ELR material. The modified ELR material has improved operational characteristics over the ELR material alone. Such operational characteristics may include operating at increased temperatures or carrying additional electrical charge or other operational characteristics. In some implementations of the invention, the ELR material is a cuprate-perovskite, such as, but not limited to BSSCO. In some implementations of the invention, the modifying material is a conductive material that bonds easily to oxygen, such as, but not limited to, chromium.Type: ApplicationFiled: March 15, 2013Publication date: August 1, 2013Applicant: Ambature, LLCInventor: Ambature, LLC
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Publication number: 20130196856Abstract: In some embodiments of the invention, superconducting structures are described. In certain embodiments the superconducting structures described are thin films of iron-based superconductors on textured substrates; in some aspects a method for producing thin films of iron-based superconductors on textured substrates is disclosed. In some embodiments applications of thin films of iron-based superconductors on textured substrates are described. Also contemplated is the formation of a film of iron-based superconductor having a thickness and an in-plane lattice constant formed on a textured substrate having a thickness and an in-plane lattice constant similar to the in-plane lattice constant of the iron-based superconductor.Type: ApplicationFiled: August 2, 2011Publication date: August 1, 2013Applicant: BROOKHAVENSCIENCE ASSOICATES, LLCInventors: Qiang Li, Weidong Si
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Publication number: 20130190188Abstract: A method for manufacturing a base material 2 for a superconductive conductor which includes: a conductive bed layer forming process of forming a non-oriented bed layer 24 having conductivity on a substrate 10; and a biaxially oriented layer forming process of forming a biaxially oriented layer 26 on the bed layer 24.Type: ApplicationFiled: August 24, 2012Publication date: July 25, 2013Applicant: FURUKAWA ELECTRIC CO., LTD.Inventors: Yoshikazu Okuno, Hiroyuki Fukushima, Yuko Hayase, Eiji Kojima
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Patent number: 8486864Abstract: The present invention relates to a method for producing a phase-separated layer useful as a flux pinning substrate for a superconducting film, wherein the method includes subjecting at least a first and a second target material to a sputtering deposition technique in order that a phase-separated layer is deposited epitaxially on a primary substrate containing an ordered surface layer. The invention is also directed to a method for producing a superconducting tape containing pinning defects therein by depositing a superconducting film on a phase-separated layer produced by the method described above.Type: GrantFiled: December 29, 2009Date of Patent: July 16, 2013Assignees: UT-Battelle, LLC, University of Tennessee Research FoundationInventors: Tolga Aytug, Mariappan Parans Paranthaman, Ozgur Polat
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Publication number: 20130157864Abstract: A integrated circuit and methods for fabricating the circuit are provided. The circuit integrates at least one circuit element formed from a material that is superconducting at temperatures less than one hundred milliKelvin and at least one resistor connected to the circuit element. The resistor is formed from an alloy of transition metals that is resistive at temperatures less than one hundred milliKelvin.Type: ApplicationFiled: December 19, 2011Publication date: June 20, 2013Inventors: John J. Talvacchio, Erica C. Folk, Sean R. McLaughlin, David J. Phillips
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Publication number: 20130157866Abstract: 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 10; an intermediate layer 20 formed on the metal substrate 10 and containing a rare-earth element that reacts with Ba; a reaction suppressing layer 28 formed on the intermediate layer 20 and mainly containing LaMnO3+?1, wherein ?1 represents an amount of non-stoichiometric oxygen; and an oxide superconducting layer 30 formed on the reaction suppressing layer 28 and mainly containing an oxide superconductor containing Ba.Type: ApplicationFiled: November 24, 2011Publication date: June 20, 2013Applicant: FURUKAWA ELECTRIC CO., LTD.Inventors: Yoshikazu Okuno, Hiroyuki Fukushima, Eiji Kojima, Yuko Hayase
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Patent number: 8465793Abstract: A process for preparing a shaped substrate suitable in the production of coated conductors which process allows the deformation of a textured substrate onto which a textured buffer layer has been already grown.Type: GrantFiled: June 3, 2009Date of Patent: June 18, 2013Assignee: NexansInventors: Jürgen Ehrenberg, Mark Rikel
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Patent number: 8463342Abstract: Superconducting rf is limited by a wide range of failure mechanisms inherent in the typical manufacture methods. This invention provides a method for fabricating superconducting rf structures comprising coating the structures with single atomic-layer thick films of alternating chemical composition. Also provided is a cavity defining the invented laminate structure.Type: GrantFiled: October 6, 2008Date of Patent: June 11, 2013Assignee: Uchicago Argonne, LLCInventors: James H. Norem, Michael J. Pellin
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Publication number: 20130123112Abstract: A continuous process produces superconducting layers on substrates, such as a superconducting layer of MgB2 produced by aerosol deposition on the substrate.Type: ApplicationFiled: May 16, 2011Publication date: May 16, 2013Inventor: Tabea Arndt
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Publication number: 20130101832Abstract: The noble metal coating of the present invention is formed on a ceramic substrate. The noble metal coating has a thickness of less than 2 ?m and comprises a matrix metal and a ceramic fine particle. The matrix metal includes at least one metal selected from a group consisting of Pt, Pd, Ru, Rh, Os, Ir and Au as a main component. The content of the ceramic fine particle is preferably 3 to 30 parts by weight with respect to 100 parts by weight of the matrix metal. The ratio between the average particle size of the ceramic fine particle and the thickness of the noble metal coating is preferably 1/1.5 to 1/400.Type: ApplicationFiled: October 12, 2012Publication date: April 25, 2013Applicant: NGK INSULATORS, LTD.Inventor: NGK INSULATORS, LTD.
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Patent number: 8409657Abstract: A production process of a thick-film tape-shaped RE-type (123) superconductor having a high critical current value. The production process has the steps of providing a composite substrate having Gd2Zr2O7 and CeO2 stacked in that order onto a Hastelloy substrate, coating a raw material solution prepared by dissolving a trifluoroacetate of Y and Ba and a naphthenate of Cu onto the composite substrate, heat treating the coated composite substrate by calcination, then subjecting the calcined assembly to intermediate heat-treatment at a temperature below the temperature of heat-treatment for superconductor production, and then heat treating the assembly in an argon gas atmosphere under conditions of highest heating temperature 760° C., water vapor partial pressure 13.5%, and oxygen partial pressure 0.09% for superconductor production to produce a tape-shaped RE-type (123) superconductor having a YBCO superconducting film having a thickness of more than about 2 ?m.Type: GrantFiled: December 7, 2006Date of Patent: April 2, 2013Assignees: The Jurical Foundation, SWCC Showa Cable Systems Co., Ltd.Inventors: Ryo Teranishi, Yuji Aoki, Junko Matsuda, Koichi Nakaoka, Teruo Izumi, Yuh Shiohara
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Patent number: 8389444Abstract: A method of producing a thin layer, high-temperature superconductor strip is disclosed. In the method, a metal salt solution is formed and coated onto a substrate including a high-temperature superconductor layer. Heat is then applied directly or indirectly to the solution. The metal salt solution may contain a metal-organic salt solution or a metal inorganic metal salt solution. When an inorganic metal salt solution is utilized, a reducing solution may also be applied to the HTSC layer prior to heating. In addition, nano-sized metal particles may be added to the metal salt solution and/or the reducing solution.Type: GrantFiled: July 23, 2008Date of Patent: March 5, 2013Assignee: BASF SEInventor: Michael Baecker
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Patent number: 8389045Abstract: An oxide superconductor film formed on a substrate includes an oxide containing at least one metal M selected from the group consisting of yttrium and lanthanoid metals, provided that cerium, praseodymium, promethium and ruthenium are excluded, and barium and copper, in which the film has an average thickness of 350 nm or more, an average amount of residual carbon of 3×1019 atoms/cc or more, and an amount of residual fluorine in a range of 5×1017 to 1×1019 atoms/cc, and in which, when divided the film into a plurality of regions from a surface of the film or from an interface between the film and the substrate, each region having a thickness of 10 nm, atomic ratios of copper, fluorine, oxygen and carbon between two adjacent regions are in a range of ? times to 5 times.Type: GrantFiled: October 7, 2010Date of Patent: March 5, 2013Assignee: Kabushiki Kaisha ToshibaInventor: Takeshi Araki
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Publication number: 20130053251Abstract: An oxide superconducting conductor of the invention is configured to include an oxide superconducting layer including a substrate and an oxide superconductor formed on the substrate. The oxide superconductor being expressed by a composition formula of RE1Ba2Cu3Oy where RE represents a rare earth element and an expression of 6.5<y<7.1 is satisfied. A normal conduction phase including Ba and a different phase including an alkaline earth metal having an ionic radius smaller than that of Ba are dispersed in the oxide superconducting layer. The normal conduction phase is an oxide including Ba and one selected from a group consisting of Zr, Sn, Hf, Ce, and Ti.Type: ApplicationFiled: October 5, 2012Publication date: February 28, 2013Applicant: FUJIKURA LTD.Inventor: Mitsunori IGARASHI
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Publication number: 20130040822Abstract: A method of forming a superconductive device of a single layer of (BETS)2GaCl4 molecules on a substrate surface which displays a superconducting gap that increases exponentially with the length of the molecular chain is provided.Type: ApplicationFiled: August 24, 2012Publication date: February 14, 2013Applicant: Ohio UniversityInventors: Saw Wai Hla, Abdelrahim Hassanien, Kendal Clark
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Publication number: 20130035236Abstract: This invention provides a method of making a fluorinated precursor of a superconducting ceramic. The method comprises providing a solution comprising a rare earth salt, an alkaline earth metal salt and a copper salt; spraying the solution onto a substrate to provide a film-covered substrate; and heating the film-covered substrate in an atmosphere containing fluorinated gas to provide the fluorinated precursor.Type: ApplicationFiled: June 8, 2012Publication date: February 7, 2013Applicant: Brookhaven Science Associates, LLCInventors: Harold Wiesmann, Vyacheslav Solovyov
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Patent number: 8367585Abstract: Disclosed herein is a superconducting strip having a metal coating layer and a method of manufacturing the superconducting strip.Type: GrantFiled: July 22, 2008Date of Patent: February 5, 2013Assignee: Korea Electrotechnology Research InstituteInventors: Hong Soo Ha, Sang Soo Oh, Dong Woo Ha, Kyu Jung Song, Rock Kil Ko, Ho Sup Kim
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Patent number: 8361930Abstract: The invention relates to a method for producing a high temperature superconductor (HTSC) from a strip including an upper side precursor layer and which, for continuous sintering of the precursor layer within a furnace in the presence of a fed-in reaction gas, is drawn across a support. A furnace for performing the method is also described.Type: GrantFiled: April 6, 2011Date of Patent: January 29, 2013Assignee: BASF SEInventor: Michael Baecker
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Publication number: 20130017956Abstract: Methods of forming a superconducting wire are provided. The method may include dissolving a superconducting material in an acid not including fluorine to form a superconducting precursor solution, providing the superconducting precursor solution on a substrate to form a superconducting precursor layer, and controlling an oxygen partial pressure of a processing chamber provided with the substrate and/or a temperature of the substrate in order that the superconducting precursor layer partially have a liquid phase, thereby forming an epitaxial superconducting layer on the substrate.Type: ApplicationFiled: May 30, 2012Publication date: January 17, 2013Inventors: Sang Im Yoo, Jung-Woo Lee
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Patent number: 8354136Abstract: A method for producing a thick film includes disposing a precursor solution onto a substrate to form a precursor film. The precursor solution contains precursor components to a rare-earth/alkaline-earth-metal/transition-metal oxide including a salt of a rare earth element, a salt of an alkaline earth metal, and a salt of a transition metal in one or more solvents, wherein at least one of the salts is a fluoride-containing salt, and wherein the ratio of the transition metal to the alkaline earth metal is greater than 1.5. The precursor solution is treated to form a rare earth-alkaline earth-metal transition metal oxide superconductor film having a thickness greater than 0.8 ?m. precursor solution.Type: GrantFiled: November 24, 2009Date of Patent: January 15, 2013Assignee: American Superconductor CorporationInventors: Xiaoping Li, Thomas Kodenkandath, Edward J. Siegal, Wei Zhang, Martin W. Rupich, Yibing Huang
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Patent number: 8304372Abstract: The present invention provides a process for joining oxide-superconducting tubes with a superconducting joint. The process involves the preparation of a partially preformed superconducting material, followed by cold isopressing of the powder of partially performed superconducting material into tube shape and further provided with grooves at both ends of the tubes with a subsequent deposition of a silver layer. The process further involves the lapping of one of the end faces of a pair of said tubes to be joined. These lapped end faces of both the tubes clubbed together on a common silver bush are coated with a paste of the same partially preformed superconducting material in organic formulation. Then these coated end faces are closed pressed together to form a joint. This joint portion and the end portions of the tubes are wrapped with a perforated silver foil followed by deposition of another layer of silver.Type: GrantFiled: December 31, 2007Date of Patent: November 6, 2012Assignee: Council of Scientific and Industrial ResearchInventors: Shrikant Narayan Ekbote, Gursharan Kaur Padam, Narendra Kumar Arora, Mukul Sharma, Ramesh Sethi
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Publication number: 20120264612Abstract: A superconducting article includes a substrate having a biaxially textured surface. A biaxially textured buffer layer, which can be a cap layer, is supported by the substrate. The buffer layer includes a double perovskite of the formula A2B?B?O6, where A is rare earth or alkaline earth metal and B? and B? are different transition metal cations. A biaxially textured superconductor layer is deposited so as to be supported by the buffer layer. A method of making a superconducting article is also disclosed.Type: ApplicationFiled: April 15, 2011Publication date: October 18, 2012Inventors: Amit Goyal, Sung-Hun Wee
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Publication number: 20120258864Abstract: The invention pertains to creating new extremely low resistance (“ELR”) materials, which may include high temperature superconducting (“HTS”) materials. In some implementations of the invention, an ELR material may be modified by depositing a layer of modifying material unto the ELR material to form a modified ELR material. The modified ELR material has improved operational characteristics over the ELR material alone. Such operational characteristics may include operating at increased temperatures or carrying additional electrical charge or other operational characteristics. In some implementations of the invention, the ELR material is a cuprate-perovskite, such as, but not limited to YBCO. In some implementations of the invention, the modifying material is a conductive material that bonds easily to oxygen, such as, but not limited to, chromium.Type: ApplicationFiled: June 13, 2012Publication date: October 11, 2012Inventors: Douglas J. Gilbert, Timothy S. Cale
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Publication number: 20120258863Abstract: 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.Type: ApplicationFiled: April 9, 2012Publication date: October 11, 2012Applicant: SUPERPOWER, INC.Inventors: Venkat Selvamanickam, Hee-Gyoun Lee
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Patent number: 8283293Abstract: A method for producing a high temperature superconductor (=HTS) coated conductor (12), wherein a buffer layer (2; 22) and an HTS layer (4; 24; 65) are deposited on a substrate (1; 21), with the following steps: a) after depositing the buffer layer (2; 22), the surface (2a) is locally roughened, resulting in a roughened surface (13), b) a non-superconducting, closed intermediate layer (3; 23) is deposited on top of the roughened surface (13), c) and the HTS layer (4; 24; 65) is deposited on top of the intermediate layer (3; 23). A simple method for producing a HTS coated conductor with reduced losses, and with improved critical current and critical magnetic field is thereby provided.Type: GrantFiled: July 18, 2011Date of Patent: October 9, 2012Assignee: Bruker HTS GmbHInventors: Klaus Schlenga, Alexander Usoskin
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Publication number: 20120252676Abstract: The invention pertains to creating new extremely low resistance (“ELR”) materials, which may include high temperature superconducting (“HTS”) materials. In some implementations of the invention, an ELR material may be modified by depositing a layer of modifying material unto the ELR material to form a modified ELR material. The modified ELR material has improved operational characteristics over the ELR material alone. Such operational characteristics may include operating at increased temperatures or carrying additional electrical charge or other operational characteristics. In some implementations of the invention, the ELR material is a cuprate-perovskite, such as, but not limited to BSSCO. In some implementations of the invention, the modifying material is a conductive material that bonds easily to oxygen, such as, but not limited to, chromium.Type: ApplicationFiled: March 30, 2011Publication date: October 4, 2012Applicant: Ambature, LLCInventors: Douglas J. Gilbert, Timothy S. Cale
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Publication number: 20120238454Abstract: A substrate for an oxide superconductor including: a metal base; an interlayer of MgO formed on the metal base by ion beam assisted deposition method (IBAD METHOD); and a cap layer that is formed directly on the interlayer and has a higher degree of crystal orientation than that of the interlayer, in which the interlayer of MgO is subjected to a humidity treatment prior to formation of the cap layer.Type: ApplicationFiled: April 25, 2012Publication date: September 20, 2012Applicants: INTERNATIONAL SUPERCONDUCTIVITY TECHNOLOGY CENTER, FURUKAWA ELECTRIC CO., LTD., FUJIKURA LTD.Inventors: Masateru YOSHIZUMI, Hiroyuki FUKUSHIMA, Hideyuki HATAKEYAMA, Yutaka YAMADA, Hiroshi TOBITA, Teruo IZUMI
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Patent number: 8268386Abstract: A method for manufacturing a high-temperature superconducting conductor includes providing an elongate substrate to a reactor, the reactor having a longitudinal flow distributor. The longitudinal flow distributor has an entrance, a plurality of exits, and an interior distribution member provided between the entrance and the plurality of exits. The method further includes heating at least a portion of the substrate to a temperature sufficient to facilitate the formation of one of a superconducting material and a predecessor to a superconducting material. Further, the method includes flowing at least one precursor into the longitudinal flow distributor, through the entrance thereof, past an internal distribution member, and out through a plurality of exits, thereby longitudinally distributing the at least one precursor to form the superconducting material or predecessor thereof on the substrate.Type: GrantFiled: January 3, 2006Date of Patent: September 18, 2012Assignee: SuperPower Inc.Inventors: Venkat Selvamanickam, Hee-Gyoun Lee
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Publication number: 20120225784Abstract: Embodiments of a high temperature electromagnetic coil assembly are provided, as are embodiments of a method for fabricating such a high temperature electromagnetic coil assembly. In one embodiment, the method includes the steps of applying a high thermal expansion ceramic coating over an anodized aluminum wire, coiling the coated anodized aluminum wire around a support structure, and curing the high thermal expansion ceramic coating after coiling to produce an electrically insulative, high thermal expansion ceramic body in which the coiled anodized aluminum wire is embedded.Type: ApplicationFiled: March 2, 2011Publication date: September 6, 2012Applicant: HONEYWELL INTERNATIONAL INC.Inventors: James Piascik, Eric Passman, Reza Oboodi, Robert Franconi, Richard Fox, Gary J Seminara, Gene Holden, Jacob Harding
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Patent number: 8257780Abstract: Therapeutic skin cleansing and multifunctional coating compositions containing hydrogen peroxide and an organosilane quaternary compound in aqueous formulations are used to treat skin disorders including wounds, abrasions, ulcers, burns, infections, irritations, microbes, soil, water, psoriasis, acne vulgaris, blemishes, age spots, sclerosis, other physical or chemical injuries, and other skin deficiencies.Type: GrantFiled: November 21, 2005Date of Patent: September 4, 2012Assignee: Resource Development L.L.C.Inventors: Howard G. Ohlhausen, Jerome H. Ludwig
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Publication number: 20120220465Abstract: The invention provides a MgB2 superconductive wire which is long and has a high critical current density. The invention provides a manufacturing method of a superconductive wire in which a magnesium or a magnesium alloy is reacted with a magnesium boride expressed by MgBx (x=4, 7, 12) by carrying out a heat treatment. A superconductive wire is characterized by the magnesium boride expressed by the MgBx (x=4, 7, 12) is included in a part.Type: ApplicationFiled: February 14, 2012Publication date: August 30, 2012Inventors: Kazuhide TANAKA, Yasuo Kondo, Tsuyoshi Wakuda
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Publication number: 20120219824Abstract: A method of preparing a superconducting thin film of niobium silicide using atomic layer deposition (ALD) where the superconducting critical temperature of the film is controllable by modulating the thickness of the thin film. The film is formed by exposing a substrate within an ALD reactor to alternating exposures of a niobium halide (NbQx) and a reducing precursor, for example, disilane (Si2H6) or silane (SiH4). A number of ALD cycles are performed to obtain the film thickness and establish the desired superconducting critical temperature between 0.4 K and 3.1 K.Type: ApplicationFiled: February 28, 2011Publication date: August 30, 2012Inventors: Thomas Prolier, Jeffrey Elam, Jeffrey Klug, Michael J. Pellin
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Publication number: 20120214673Abstract: A superconducting element (SE1-SE5) with a central section (20) located between two end sections (21a, 21b) of the superconducting element (SE1-SE5), the superconducting element (SE1-SE5) has a substrate tape (10), a buffer layer (11), a high temperature superconducting (HTS) layer (12), a first protection layer (14), and a shunt layer (17), The superconducting element (SE1-SE5) has at least one elongated opening (19) in the central section (20) elongated between the two end sections (21a, 21b), whereby the at least one elongated opening (19) divides the central section (20) of the superconducting element (SE1-SE5) into at least two HTS strips (18a, 18b, 18c), whereby the shunt layer (17) envelops the surface of each of the HTS strips (18a, 18b, 18c). The superconducting element shows improved electrical stabilization and time stability.Type: ApplicationFiled: February 15, 2012Publication date: August 23, 2012Inventor: Alexander Usoskin
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Patent number: 8236733Abstract: A method for forming a precursor solution for metal organic deposition includes dissolving an additive-free first precursor composed of a rare earth element, a second precursor comprising barium, and a third precursor composed of copper into an acid to form a compound solution; dissolving the compound solution into a solvent to form a pre-precursor solution; and evaporating the solvent from the pre-precursor solution to form a precursor solution having an increased viscosity; wherein at least one of the first precursor, the second precursor, and the third precursor is dissolved into a fluorine-free acid. A method for forming a superconducting thick film from the above precursor solution includes forming a thick film by a one-time coating of the precursor solution having an increased viscosity onto a biaxially-textured base followed by heat treating to form the superconducting thick film having a thickness of about 0.2 ?m or more and having no cracking.Type: GrantFiled: July 20, 2009Date of Patent: August 7, 2012Assignees: Seoul National University Industry Foundation, Sunam Co., Ltd.Inventors: Sang-Im Yoo, Seung-Hyun Moon, Geo-Myung Shin
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Patent number: 8227019Abstract: The present invention provides a high-throughput system for the ex-situ formation of a superconducting thin film, such as rare-earth-barium-copper-oxide (REBCO), atop a continuous length of buffered metal substrate tape by heating a buffered metal substrate tape coated with precursors of REBCO These precursors, when heated and introduced to water vapor within a process chamber, decompose to form a functional superconducting thin film epitaxial to the buffer layer. A chamber such as a metalorganic chemical vapor deposition (MOCVD) reactor having showerhead and substrate heater assemblies designed for the creation of a long and wide deposition zone is well suited for use in the process the system. The chamber could be of cold-wall type where the walls are not heated or could of hot-wall type where the walls are heated.Type: GrantFiled: December 15, 2003Date of Patent: July 24, 2012Assignee: SuperPower Inc.Inventor: Venkat Selvamanickam
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Patent number: 8227020Abstract: Techniques to form dislocation cores along an interface of a multilayer thin film structure are described. The loading and/or deloading of isotopes of hydrogen are also described in association with core formation. The described techniques can provide be applied to superconductive structure formation, x-ray and charged particle generation, nuclear reaction processes, and/or inertial confinement fusion targets.Type: GrantFiled: March 31, 2008Date of Patent: July 24, 2012Assignee: NPL Associates, Inc.Inventor: George H. Miley
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Patent number: 8221909Abstract: An electronic component that includes a substrate and a phase-separated layer supported on the substrate and a method of forming the same are disclosed. The phase-separated layer includes a first phase comprising lanthanum manganate (LMO) and a second phase selected from a metal oxide (MO), metal nitride (MN), a metal (Me), and combinations thereof. The phase-separated material can be an epitaxial layer and an upper surface of the phase-separated layer can include interfaces between the first phase and the second phase. The phase-separated layer can be supported on a buffer layer comprising a composition selected from the group consisting of IBAD MgO, LMO/IBAD-MgO, homoepi-IBAD MgO and LMO/homoepi-MgO. The electronic component can also include an electronically active layer supported on the phase-separated layer.Type: GrantFiled: November 17, 2010Date of Patent: July 17, 2012Assignee: UT-Battelle, LLCInventors: Tolga Aytug, Mariappan Parans Paranthaman, Ozgur Polat