Class 505/806 - Niobium base (Nb)

Subclass of Class 505 - Superconductor technology: apparatus, material, process
Definition: Subject matter composed at least 50 percent of Niobium (Nb).
No. of patents: 26
Last issue date: 02/05/2008

Number	Title	Issue Date
7325293	Zirconia-stabilized multi-filamentary niobium-tin superconducting wire A multi-filament superconducting wire in which the filaments comprise zirconia-stabilized ultra-fine grain Nb3Sn. The superconducting wire is formed by wire-drawing a preform comprising a metallic matrix and at least one niobium alloy rod having zirconium...	02/05/2008
6849137	Nb3Sn-system superconductive wire An Nb3Sn-based superconductive wire which, when used in a superconductive magnet, manifests sufficient strength also against force along the radius direction in operating the magnet and reveals little deterioration in properties due to mechanical strain a...	02/01/2005
6570096	Production method of Nb3Al superconducting multifilamentary wire This invention provides a production method of Nb3 Al superconducting multifilamentary wire based on rapid-heating, quenching and transformation method, capable of producing a high-performance Nb3 Al superconducting multifilamentary ...	05/27/2003
6508889	Process for the production of Nb3A1 extra-fine multifilamentary superconducting wire A high-performance Nb3 Al extra-fine multifilamentary superconducting wire is produced simply and inexpensively through the improvement of critical values, Tc, Hc2 and Jc, without the addition of third elements such as Ge, Si and Cu....	01/21/2003
5891585	Nb₃ Al multi-filamentary superconducting wire An Nb3 Al multi-filamentary superconducting wire capable of realizing both stabilization of a superconducting state and increase in capacity is provided. The Nb3 Al multi-filamentary superconducting wire includes a core formed of cop...	04/06/1999
5620532	Method for manufacturing Nb₃ Al group superconductor In a method for manufacturing Nb3 Al phase by a diffusion reaction of Nb2 Al phase and Nb phase, a part of the Nb2 Al phase is remained and dispersed in the Nb3 Al phase homogeneously as for magnetic flux pinnin...	04/15/1997
5522945	Method for forming triniobium tin superconductor with bismuth A method for making triniobium tin superconductor with improved critical current density is disclosed where an annealed niobium-base substrate is passed through a tin alloy bath containing tin, copper, and bismuth, to coat the substrate with tin and then ...	06/04/1996
5419974	Component and method for fabricating superconducting wire A component 10 for making Al5 Nb3 Sn superconducting wire is of plane-filling cross-section after removing temporary additions 6, 7. It consists of a central pillar 1 of aluminium (later replaced by tin) surrounded by a two-deep array of polygo...	05/30/1995
5321276	Radiation sensing device and Josephson device A superconducting tunnel junction radiation sensing device includes first and second superconductor electrodes and a tunnel barrier layer interposed therebetween. The tunnel barrier layer is made up of a thin-wall portion and a thick-wall portion each for...	06/14/1994
5306927	High current amplifier utilizing a josephson junction Schottky diode three terminal device A high current amplifier, three terminal device, comprising a Josephson tunnel junction and a Schottky diode is configured so that the Josephson junction and Schottky diode share a common base electrode which is made very thin. Electrons which cross the S...	04/26/1994
5226947	Niobium-titanium superconductors produced by powder metallurgy having artificial flux pinning centers Superconductors formed by powder metallurgy have a matrix of niobium-titanium alloy with discrete pinning centers distributed therein which are formed of a compatible metal. The artificial pinning centers in the Nb-Ti matrix are reduced in size by process...	07/13/1993
5139893	Superconducting alloy core circumscribed by multiple layers of NbTi and refractory metal barrier layer having a normal metal sheath A Type II superconducting filament is formed by surrounding a Type II superconducting alloy ingot with layers of a fine grain Type II superconducting alloy sheet, a barrier layer and a copper extrusion can. The composite is then reduced to a filament by h...	08/18/1992
5123974	Process for increasing the transition temperature of metallic superconductors In one embodiment this invention provides a process for decreasing the resistivity of an electrical conductor. The process involves the application of high temperature and an external field to a conductor to induce a current flow and physicochemical trans...	06/23/1992
4997719	Niobium-containing superconductor-laminated aromatic polyimide material A flexible Nb-containing superconductor-laminated aromatic polyimide material useful for superconducting wires and circuits, comprising an Nb-containing superconductor layer formed on an aromatic imide polymer substrate, which preferably comprise a polyme...	03/05/1991
4956337	Nb-Si-Al-O superconductors with high transition temperatures and process for manufacturing the same A superconductive material with a superconducting critical temperature of at least 77° K. comprising 20 at. % Nb, 10 at. % Si, 10 at. % Al and 60 at. % O is provided by simultaneous vapor-phase physical deposition or sputtering of Nb, Si and Al onto a he...	09/11/1990
4865644	Superconducting niobium alloys This disclosure discloses a method of making a niobium alloy having the general formula Nby M where M is aluminum, gallium, indium, tin, germanium, silicon, or a mixture thereof. A niobium halide having the formula NbXy is reactive w...	09/12/1989
4564564	Superconducting magnet wire A superconducting tape or wire with an improved critical field is formed of alternating layers of a niobium-containing superconductor such as Nb, NbTi, Nb3 Sn or Nb3 Ge with a thickness in the range of about 0.5-1.5 times its coheren...	01/14/1986
4537642	Method of manufacturing Al-stabilized superconductor A method of manufacturing an Al-stabilized superconductor is disclosed. The method comprises combining into a composite a thin elongated Al member and a superconductive wire. The Al member is preferably comprised of high purity Al having a purity of not l...	08/27/1985
4339508	Method for manufacturing a thin and flexible ribbon of superconductor material A method for manufacturing a thin and flexible ribbon of superconductor material such as V3 Sn, V3 Ge, V3 Si, Nb3 Sn, Nb3 Ge, Nb3 Si and La-Au having a fine and compact microscopic structure ...	07/13/1982
4242419	Epitaxial growth of superconductors such as Nb₃ Ge superconductors Nb3 Ge, Nb3 Al and Nb3 Si are prepared in A15 structures at the exact stoichiometric ratio with epitaxial growth on selected substrates. The phase diagrams of the materials are altered by this technique and only the A15 ph...	12/30/1980
4202931	Superconducting articles of manufacture and method of producing same Bulk coatings of Nb3 Ge with high superconducting transition temperatures bonded to metallic substrates and a chemical vapor deposition method for producing such coatings on metallic substrates are disclosed. In accordance with the method, a Nb...	05/13/1980
4151330	Mb₃ Ge Superconductive films grown with nitrogen A superconductive film of Nb3 Ge is produced by providing within a vacuum chamber a heated substrate and sources of niobium and germanium, reducing the pressure within the chamber to a residual pressure no greater than about 10-5 mm ...	04/24/1979
4151329	Nb₃ Ge Superconductive films A superconductive film of Nb3 Ge is produced by providing within a vacuum chamber a heated substrate and sources of niobium and germanium, reducing the pressure within the chamber to a residual pressure no greater than about 10-5 mm ...	04/24/1979
4005990	Superconductors The structural quality of niobium germanide as a high-transition-temperature superconducting material is substantially improved by the presence of about 5 at. % oxygen. Niobium germanide having this oxygen content may readily be prepared as a bulk coating...	02/01/1977
3988178	Method for preparing superconductors A superconductor having an equiaxed fine grain beta-tungsten crystalline structure found to have improved high field critical current densities is prepared by sputter-depositing superconductive material onto a substrate cooled to below 200° C. and heat-t...	10/26/1976
3945859	Method of manufacturing superconductors of ଲ-tungsten structure A method of manufacturing a superconductor consisting of different materials by introducing into material of an element or an alloy at least one element of another group or a compound, whereupon the diameter of the assembly, if desired, is reduced and sub...	03/23/1976

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Class 505/806 - Niobium base (Nb)