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| Number | Title | Issue Date |
| 7293343 | Method of manufacturing superconducting wire A method of manufacturing a superconducting wire is provided. The method is provided with the steps of filling a raw material powder in a metal pipe, the raw material powder being composed of an oxide superconductor or a precursor to become an oxide superconductor t... | 11/13/2007 |
| 7268099 | Enclosed ceramic filament In the present invention, a superconducting (sc) ceramic filament is enclosed in a silver sheath which is sealed therearound by applying silver powder between the surfaces of said sheath, pressing the surfaces and powder into contact and then applying sufficient hea... | 09/11/2007 |
| 7256523 | Magnetic mounting of a rotor shaft relative to a stator, using a high-Tsuperconductor A first bearing part is arranged fixedly in terms of rotation on a rotor shaft with permanent magnetic elements arranged next to one another and flux guide elements arranged between them. A second bearing part, separated from the first bearing part by a bearing gap,... | 08/14/2007 |
| 7150851 | Powder press An apparatus for pressing a mass into a coherent workpiece has a mold body defining a chamber and a mold liner in the chamber having a generally cylindrical pressing surface centered on an axis, directed in one radial direction, and defining a mold cavity and an opp... | 12/19/2006 |
| 7134181 | Method for producing NbAl superconductive wire A superfine multi-core Nb3Al superconductive wire is produced by getting a Nb3Al superconductive wire ready which was obtained by subjecting a precursor wire having a superfine multi-core structure in which a plurality of Nb/Al complex cores ar... | 11/14/2006 |
| 6993823 | Method of manufacturing oxide superconducting wire The inventive method of manufacturing an oxide superconducting wire comprises a step (S1, S2) of preparing a wire formed by covering raw material powder of an oxide superconductor with a metal and a step (S4, S6) of heat-treating the wire... | 02/07/2006 |
| 6892440 | Method for winding an embedded b-zero coil A method for winding on embedded b-zero coil maintains the integrity of superconducting main coil and the b-zero wire during coil winding and during normal operation of a superconducting MRI magnet. The b-zero coil is co-wound with an aluminum overwrap while the alu... | 05/17/2005 |
| 6632776 | Method of preparing oxide superconducting wire and pressure heat treatment apparatus employed for the method The method of preparing an oxide superconducting wire comprises steps of preparing a wire by coating raw material powder for a Bi--Pb--Sr--Ca--Cu--O based oxide superconductor including a 2223 phase with a metal and heat treating the wire in a pressurized... | 10/14/2003 |
| 6630426 | Method of increasing the critical temperature of a high critical temperature superconducting film and a superconducting structure made using the method A method for increasing the critical temperature, Tc, of a high critical temperature superconducting (HTS) film (104) grown on a substrate (102) and a superconducting structure (100) made using the method. The HTS film has an a-b plane parallel... | 10/07/2003 |
| 6613270 | Method of forming superconducting composite article A novel process of the production and processing of high quality, high Tc BSCCO or (Bi,Pb)SCCO superconductors starts with fabrication of a forming a bundle including a plurality of billets, each billet containing at least one filament comprisi... | 09/02/2003 |
| 6555503 | Simultaneous constraint and phase conversion processing of oxide superconductors A method of making an oxide superconductor article includes subjecting an oxide superconductor precursor to a texturing operation to orient grains of the oxide superconductor precursor to obtain a highly textured precursor; and converting the textured oxi... | 04/29/2003 |
| 6543123 | Process for making constrained filament niobium-based superconductor composite A niobium-based superconductor is manufactured by establishing multiple niobium components in a billet of a ductile metal, working the composite billet through a series of reduction steps to form the niobium components into elongated elements, each niobiu... | 04/08/2003 |
| 6381832 | Process for the production of a superconducting wire having a stacked structure A superconducting wire having a stacked structure comprising (a) a substrate composed of an electrically conductive material, (b) an oxide superconductor material, and (c) an electrically conductive material which is substantially not reactive with said o... | 05/07/2002 |
| 6357105 | Oxide superconducting wire An oxide superconducting wire of an anisotropic oxide superconductor comprises a core part of the wire and a superconducting layer enclosing the core part so that specific crystal axes of the oxide superconductor are oriented toward the core part. A metho... | 03/19/2002 |
| 6240619 | Thermomechanical means to improve the critical current density of BSCCO tapes A method of preparing wires or tapes including Bi-2223 superconductor material by providing oxide and carbonate sources of Bi, Sr, Ca, Cu and Pb, milling the material for a time not to exceed about 30 minutes but preferably not greater than 20 minutes to ... | 06/05/2001 |
| 6221813 | Shaped bodies comprising textured superconducting material and a process for their production The invention relates to a process for producing a shaped body, in which a mixture of oxidic starting powders or a superconducting material, which comprises at least 30% by volume of platelet-shaped primary particles and has such a composition that a high... | 04/24/2001 |
| 6218340 | Method of manufacturing superconductors including isostatic pressing A modified powder-in-tube process produces a superconductor wire having a significantly greater current density than will a superconductor wire of the same nominal superconductor composition produced using conventional draw-swage-extrude-roll deformation.... | 04/17/2001 |
| 6191074 | Fabrication of superconducting wires and rods The fabrication of superconducting wires and rods having desired and consistent electrical and mechanical properties, in particular those based on Yttrium Barium Copper Oxide (YBCO) and Bismuth Strontium Calcium Copper Oxide (BSCCO), is disclosed. The fir... | 02/20/2001 |
| 6069116 | Method of forming BSCCO superconducting composite articles A novel process of the production and processing of high quality, high Tc BSCCO or (Bi,Pb)SCCO superconductors starts with fabrication of a forming a bundle including a plurality of billets, each billet containing at least one filament comprisi... | 05/30/2000 |
| 6055446 | Continuous lengths of oxide superconductors A layered oxide superconductor prepared by depositing a superconductor precursor powder on a continuous length of a first substrate ribbon. A continuous length of a second substrate ribbon is overlaid on the first substrate ribbon. Sufficient pressure is ... | 04/25/2000 |
| 5821201 | (Bi, Pb)2, Sr2 Ca2 Cu3 Ox superconductor and method of making same utilizing sinter-forging A (BiPb)2 Sr2 Ca2 Cu3 Ox (Bi223) superconductor with high Jc, phase purity, density and mechanical strength is formed from Bi2223 powder which is synthesized from a mixture of Bi2 ... | 10/13/1998 |
| 5674814 | Synthesis of increased-density bismuth-based superconductors with cold isostatic pressing and heat treating The present invention is directed to a process for producing high temperature superconducting ceramic materials. More particularly, the present invention is directed to a process that enhances the densification of Bi1.8 Pb0.4 Sr... | 10/07/1997 |
| 5627140 | Enhanced flux pinning in superconductors by embedding carbon nanotubes with BSCCO materials Enhanced flux pinning in superconductors is achieved by embedding carbon nanotubes into a superconducting matrix. The carbon nanotubes simulate the structure, size and shape of heavy ion induced columnar defects in a superconductor such as Bi2 ... | 05/06/1997 |
| 5550103 | Superconductor tapes and coils and method of manufacture A method of producing a high temperature long length coil of superconductor wire or tape having improved critical current densities by utilizing an in-line pressing operation to heal the microcracks in the tape or wire which were introduced in rolling and... | 08/27/1996 |
| 5545613 | Preparation of superconducting oxides and oxide-metal composites A method of preparing a superconducting oxide by combining the metallic elements of the oxide to form an alloy, followed by oxidation of the alloy to form the oxide. Superconducting oxide-metal composites are prepared in which a noble metal phase intimate... | 08/13/1996 |
| 5470821 | Superconductors having continuous ceramic and elemental metal matrices Composite bulk superconducting materials having desirable physical, measured transport current density and high Tc superconducting characteristics are provided which comprise a first matrix of superconducting ceramic oxide crystalline grains wi... | 11/28/1995 |
| 5462920 | Method of preparing oxide superconducting wire In order to prevent inflation of a metallic coating during heat treatment so that no ununiformity is caused in the critical current density in a method of preparing an oxide superconducting wire which is obtained by heat treating and sintering metal-coate... | 10/31/1995 |
| 5439880 | Preparation of superconducting oxides by oxidizing a metallic alloy A method of preparing a superconducting oxide by combining the metallic elements of the oxide to form an alloy, followed by oxidation of the alloy to form the oxide. Superconducting oxide-metal composites are prepared in which a noble metal phase intimate... | 08/08/1995 |
| 5434128 | Superconductive wire A superconductive article is made by inserting a rigid mandrel into an internal cavity of a first metallic tube, said tube having an interior surface and an exterior surface, said interior surface defining the interior cavity, forming a layer of a superco... | 07/18/1995 |
| 5432150 | High-Tc superconducting ceramic oxide products and macroscopic and microscopic methods of making the same High-Tc superconducting ceramic oxide products and macroscopic and microscopic methods for making such high-Tc superconducting products. Completely sealed high-Tc superconducting ceramic oxide products are made by a macroscopic process including the steps... | 07/11/1995 |
| 5374612 | "Oxide superconductor wire having sintered silver powder layers" A superconductor wire comprising an inner core and an outer ring covering the core, wherein one of the inner core and the outer ring comprises a sintered silver powder and the other of the inner core and the outer ring on the core comprises a sintered oxi... | 12/20/1994 |
| 5369088 | Method of preparing oxide superconducting wire In order to prevent inflation of a metallic coating during heat treatment so that no ununiformity is caused in the critical current density in a method of preparing an oxide superconducting wire which is obtained by heat treating and sintering metal-coate... | 11/29/1994 |
| 5284823 | Superplastic forming of YBa2 Cu3 O7-x ceramic superconductors with or without silver addition A process for superplastically forming and shaping a solid object including 123 superconductor, including preparing a solid object having grains of 123 superconductor that have an average grain size of less than 10 microns, and superplastically deforming ... | 02/08/1994 |
| 5223478 | Hot isostatic processing of high current density high temperature conductors A method to form a superconducting wire or ribbon contains the steps: (1) forming ceramic powder, (2) forming pellets from the powder, (3) inserting the pellets in a metal sheath, (4) reducing the cross-section of the sheathed pellets to form a composite,... | 06/29/1993 |
| 5219832 | High-TC superconducting ceramic oxide products and macroscopic and microscopic methods of making the same High-Tc superconducting ceramic oxide products and macroscopic and microscopic methods for making such high-Tc superconducting products. Completely sealed high-Tc superconducting ceramic oxide products are made by a macroscopic process including the steps... | 06/15/1993 |
| 5210071 | Method of forming superconductive articles by hydrostatic extrusion A method for forming elongated articles including metallic oxide superconductor material by hydrostatic extrusion at temperatures less than about 800° C., and even at temperatures less than about 450° C. The method includes providing superconductive cor... | 05/11/1993 |
| 5206211 | Process for the production of an elongate body consisting of longitudinally aligned acicular crystals of a superconducting material Process for the production of an elongate body of longitudinally aligned acicular crystals (3) of the superconducting substance REBa2 Cu3 O6.5+y, with RE=rare earth metal, 0 | 04/27/1993 |
| 5204316 | Preparation of tape of silver covered Bi-Pb-Ca;Sr-Cu-O oriented polycrystal superconductor A silver tube with one open end is packed with a particulate mixture of reactants comprised of Bi2 CaSr2 Cu2 O8&#b1;x, Ca2 CuO3, cupric oxide and lead oxide, the open end of the packed tube is ... | 04/20/1993 |
| 5145835 | Process for fabricating superconducting ceramic materials by HIP treatment A process for fabricating worked superconducting ceramic material of a mean grain size not more than 10 um is disclosed, which comprises the steps of: (a) preparing a metal casing containing a starting powder material having a composition for forming an o... | 09/08/1992 |
| 5100867 | Process for manufacturing wire or strip from high temperature superconductors and the sheaths used for implementing the process In a known process, oxide powders derived from the four-component systems yttrium-barium-copper-oxygen or lanthanum-strontium-copper-oxygen are mixed, pressed, sintered, ground and then heat-treated to produce a superconducting material which can be shape... | 03/31/1992 |
