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7325293 |
A multi-filament superconducting wire in which the filaments comprise zirconia-stabilized ultra-fine grain Nb 3 Sn. The superconducting wire is formed by wire-drawing a preform comprising a metallic matrix and at least one niobium alloy ...
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6932874 |
A method for producing a superconductor having a high copper to superconductor composition (Cu/SC) ratio by cross-sectional area. An assembly is prepared formed of one or more fine filaments of a superconductor composition or of a precur...
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6787504 |
The invention is intended to establish means for manufacturing MB 2 single crystals and to provide a useful superconductive material (wire rod and so forth) taking advantage of anisotropic superconductive properties thereof. A mixed raw...
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6670308 |
An epitaxial article and method for forming the same includes a substrate having a textured surface, and an electrochemically deposited substantially single orientation epitaxial layer disposed on and in contact with the textured surface...
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6645313 |
A method for forming an electronically active biaxially textured article includes the steps of providing a substrate having a single crystal metal or metal alloy surface, deforming the substrate to form an elongated substrate surface hav...
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6508888 |
A superconducting conductor and method for its production. The conductor is formed of least one superconducting core and an aluminum based cryogenic stabilizer which is a high purity Al—Fe—Ni aluminum alloy having a composition, in %...
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6471785 |
A process is disclosed for producing a strip-shaped superconductor with several conductor cores made of a high-T c superconducting material and surrounded by a normal conducting material. A conductor blank ( 2 a ) produced from a fabric...
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5910222 |
In a bismuth oxide superconductor having a composition of Bi--Sr--Ca--Cu or (Bi,Pb)--Sr--Ca--Cu and being covered with a metal sheath, the a-b plane of a 2223 phase, which is a 110 K phase, is oriented along the longitudinal direction as...
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5719106 |
A holder (1) provided with a spirally extending groove (2) is prepared and an oxide superconducting wire (3) is arranged in the groove (2) to be heat treated, so that each portion thereof is not bonded to another portion during the heat ...
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5704993 |
Electrical conductors and methods of producing them, where the conductors possess both high strength and high conductivity. Conductors are comprised of carbon steel and a material chosen from a group consisting of copper, nickel, silver,...
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5663120 |
In order to prevent expansion of a metal sheath which is heat treated in order to form an oxide high-temperature superconductor therein, the heat treatment temperature is held at a certain level in an intermediate stage of temperature ri...
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5651839 |
A process for producing coherent twin, incoherent twin, low angle tilt, high angle tilt or CSL grain boundaries in materials is described. A planar material or a planar substrate coated with the polycrystalline material is heated in sele...
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5522945 |
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 ...
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5434130 |
In a method of preparing an oxide superconducting wire comprising the steps of filling up raw material powder for an oxide superconductor in a metal sheath and rolling the same in this state, frictional force on surfaces of rolls employe...
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5378684 |
In order to prevent expansion of a metal sheath which is heat treated in order to form an oxide high-temperature superconductor therein, the heat treatment temperature is held at a certain level in an intermediate stage of temperature ri...
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5362331 |
An electromagnetically stable Nb 3 Al multifilamentary superconducting wire having a high current density at a high level of magnetic field such as 20 tesla is provided by cold drawing a composite multicore consisting of a large number ...
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5314714 |
Process for increasing the density and improving the homogeneity of Chevrel phase powders and Chevrel phase wire obtained using said process. Chevrel phase powers are compounds of lead, mobydenum, and sulfur. Metallic additives in the ra...
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5246917 |
In a method of preparing an oxide superconducting wire comprising the steps of filling up raw material powder for an oxide superconductor in a metal sheath, performing first rolling in this state for working the metal sheath into a tape,...
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5230748 |
A Type II superconducting alloy which is superconducting at a predetermined high magnetic field is prepared by creating a composite having a periodic arrangement of at least two transition metals so as to provide numerous interfaces betw...
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5223348 |
Artifical pinning centers are provided in normal metal layers adjacent to a type II superconductor layer produced by reacting two normal metal layers. The transverse thicknesses of the final superconductor and normal metal layers are les...
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5211765 |
The invention relates to a method for improving the springback qualities of superconductors. According to the method, a superconducting wire is in the final stage of production cold worked with a minimal reduction, in which case the spri...
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5208215 |
A superconducting tape is fabricated with a composition of Bi 1 .81 Pb 0 .43 Sr 1 .71 Ca 2 .14 Cu 3 O x . The powder of composition is filled into a silver tube and the silver tube is processed by rolling or pressing into a thin tape. T...
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5174830 |
A superconductor which is superconducting of a predetermined high field and low temperature is formed by combining a plurality of metal bodies to form a composite structure. The metal bodies are selected from transition metals such as ni...
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5160794 |
In a preferred form of the invention, a superconductor is produced by the steps of combining a plurality of layers of metal sheets to form a composite structure. The sheets are pure transition metals--niobium, titanium, zirconium, or van...
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5160550 |
A method for producing a superconductor includes the steps of combining a plurality of metal bodies to form a composite structure, metal bodies being selected from transition metals such as niobium, tantalum, titanium, zirconium, hafnium...
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5158620 |
In the present invention, a superconductor is produced by the steps of wrapping a plurality of layers of metal sheets around a support to form a composite structure. The sheets are pure transition metals-13 niobium, titanium, zirconium, ...
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5116429 |
A Type II superconducting alloy is formed into a wire by extruding a billet of the alloy encased in a copper extrusion can. The extrusion can may include a nose and a tail section having a k factor equal to or greater than that of the bo...
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4968663 |
Ductile, composite superconductors having a continuous Re-Ba-Cu-O type or Bi-Sr-Ca-Cu-O type phases and a continuous noble metal phase and a process for their preparation are disclosed.
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4748737 |
A method of removing tenacious oxide film from particulates, such as submicron sized superconductor powder, to enhance the electrical characteristics of superconductor wire fabricated from the powder. The method includes removing the oxi...
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4575927 |
A submicron-particle ductile superconductor and method of fabricating the same wherein the submicron particles (e.g., 300 Angstroms) of a superconductor (e.g., NbC) are encapsulated in a metal tube (e.g., copper) and then fabricated down...
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4537642 |
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...
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4531982 |
A superconductor manufacturing process provides electrical insulation and enhanced transverse electrical resistivity of multifilament superconductor strands based on Nb 3 Sn. The process includes forming, during the early manufacturing ...
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4508578 |
A method of manufacturing a fine multifilamentary Nb-Ti based superconducting wire was disclosed, which comprises a first step of processing an alloy consisting essentially of 10 to 50 atomic % of niobium, 40 to 75 atomic % of titanium a...
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4419125 |
This is a method for preparing submicron-superconducting particles for use in forming a ductile superconductor wire from brittle superconducting compounds. The method utilizes preparing a mixture of solid metal halides containing essenti...
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4270264 |
A method for establishing an electrical contact between a normally conducting contact body and the end section of a superconductor annealed in situ, prior to the anneal in which the corresponding end section of the intermediate conductor...
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4178676 |
A method of making a superconducting coil from a superconducting wire includes the step of winding the wire to form a coil. Prior to the winding step, the wire is submitted to repeated tension-stressing of a predetermined stretch and a p...
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4171464 |
A composite superconductor formed from a high specific heat ceramic such as gadolinium oxide or gadolinium-aluminum oxide and a conventional metal conductor such as copper or aluminum which are insolubly mixed together to provide adiabat...
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4078299 |
A superconducting compound wire which comprises a plurality of strands having superconducting compound therein, a part or all of the strands having inclination to the lengthwise direction of the superconducting wire, and the strands bein...
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4008102 |
The invention concerns a method for the manufacture of a superconductor with a layer of the A-15 phase of the system Nb-Al-Si. According to the invention, a niobium carrier is provided with a layer about 0.5 to 5 ÎĽm thick consisting of ...
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4002504 |
A multifilament composite superconductor which comprises (1) a matrix she selected from the group consisting of a copper-gallium (Cu--Ga) alloy with a gallium content from 0.4 to 22 at.%, a copper-tin (Cu--Sn) alloy with a tin content fr...
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3988178 |
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 2...
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3953922 |
The training effect in superconducting coils is eliminated by winding the coil with a composite material that includes both a superconductor and a normal material and then applying stresses to the wound coil in the direction that electro...
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3945859 |
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, ...
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3926683 |
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, ...
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3918998 |
A method for producing a composite superconducting wire including one or more strands of high-field Type II superconductor embedded in a conductive matrix of normal material and the product of the said method. A composite body is prepare...
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3867209 |
A superconducting metal alloy is formulated from 10- 50 at % Ti, 20-50 at % Nb, 10- 40 at % Zr and 5- 12 at % Ta. A Ti-Nb-Zr-Ta superconducting alloy with a fine, non-homogeneous structure is obtained by forming a β solid solution of sa...
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3511720 |
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3509622 |
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3481800 |
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3476615 |
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