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6605569 |
Mg-doped high-temperature superconductor having low superconducting anisotropy and method for producing the superconductor
A Mg-doped high-temperature superconductor having low superconducting anisotropy includes a two-dimensional layered structure constituted by a charge reservoir layer and a superconducting layer,...
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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...
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6191075 |
Method of manufacturing a high temperature superconductor with improved transport properties
A method of preparing a high temperature superconductor. A method of preparing a superconductor includes providing a powdered high temperature superconductor and a nanophase paramagnetic material....
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6143697 |
Method for producing superconducting thick film
A method for producing a superconducting thick film involves the steps of forming a thick layer comprising a superconducting material on a substrate; firing the thick layer formed on the substrate;...
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6121205 |
Bulk superconductor and process of preparing same
A bulk superconductor including a plurality of units each composed of a substrate and a superconductive layer of R--Ba--Cu--O, where R is selected from La, Nd, Sm, Eu, Gd, Y, Dy, Ho, Er, Tm, Yb and...
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6051534 |
Process for making superconducting PBSCCO and PBSCCO parts
A process for producing the 2223 phase of (Pb,Bi)SrCaCuO that is much faster than existing processes has the steps of: calcining a precursor powder mixture while maintaining intimate mixing of this...
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5952272 |
HIP method of making high temperature mercury-containing superconductors
Hg,Tl-based superconductors are produced by HIPping. A new superconducting phase, having a double (Hg,Tl)-layer and the nominal composition: (Hg 1 -x Tl x ) 2 (Ba 1 -a Sr a ) 2 (Ca 1 -b Y b ) 2...
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5929001 |
Engineered flux-pinning centers in BSCCO TBCCO and YBCO superconductors
A method of preparing a high temperature superconductor. A method of preparing a superconductor includes providing a powdered high temperature superconductor and a nanophase material. These...
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5786304 |
Joining product of oxide superconducting material and process for producing the same
A joining product of oxide superconducting materials having a high current density and process for producing the same. A joining product comprising a plurality of oxide superconducting materials...
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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...
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5646097 |
Method of fabricating a (1223) Tl-Ba-Ca-Cu-O superconductor
A method is disclosed for fabricating a polycrystalline <223> thallium-containing superconductor having high critical current at elevated temperatures and in the presence of a magnetic field....
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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...
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5462917 |
Process of preparing superconductive oxide complexes containing L, Ba, Cu and O and method of using the same
A superconductor material having a current density, J, of from about 30,000 to about 85,000 amps/cm 2 at zero magnetic field and 77° K is disclosed. The 123 superconductor, of the formula L 1 Ba...
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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...
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5439878 |
Method for preparing copper oxide superconductor containing carbonate radicals
A process for preparing a copper oxide superconductor of (Ba,Sr)-Cu-C-O containing carbonate radicals is disclosed, which comprises the steps of: mixing alkaline earth metal compounds and a copper...
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5382405 |
Method of manufacturing a shaped article from a powdered precursor
A method of manufacturing a shaped article from a powdered precursor, wherein the components of the powdered precursor are subjected to a self-propagating high-temperature synthesis (SHS) reaction...
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5344816 |
Stable high oxidation state superconducting oxides
High temperature superconducting oxide materials can be taken to a higher, but stable, state of oxidation by removing H-impurities, such as OH - , using I 2 /O 2 mixtures in a reactive atmosphere...
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5318745 |
Oxide superconductor and manufacturing method thereof via HIP and controlling the oxygen partial pressure
A method of manufacturing an oxide superconductor having a composition expressed by formula La 2 -X Sr X CaCu 2 O 6 (0<X≤0.6), comprising the steps of: preliminarily burning a raw powder...
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5284823 |
Superplastic forming of YBa.sub.2 Cu.sub.3 O.sub.7-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...
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5252545 |
Dense high temperature ceramic oxide superconductors
Dense superconducting ceramic oxide articles of manufacture and methods for producing these articles are described. Generally these articles are produced by first processing these superconducting...
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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...
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5221663 |
Method for repairing an oxide superconducting connecting line
A method for producing an oxide superconducting connecting line includes initially coating a line with at least one layer of a crystalline or amorphous metal alloy forming a superconductive oxide....
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5158930 |
Method of improving superconducting qualities of fabricated constructs by shock preprocessing of precursor materials
Disclosed is a method of improving the physical properties of superconducting materials which comprises: a. applying a high strain rate deformation to said materi The United States Government...
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5145829 |
Method for manufacturing oxide high-temperature superconductor
A compacted and highly oriented microstructure of the bulk-shaped Bi-Sr-Ca-Cu-O system oxide superconductor is obtained by the intermediate pressing method of the present invention. The growth rate...
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5145833 |
Method for producing ceramic bodies
This invention provides a process for producing a ceramic body by heating a ceramic material, such as particulate zirconium oxide, to a temperature greater than about 30 percent of the material's...
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5120704 |
Method of making Tl-Sr-Ca-Cu-oxide superconductors comprising heating at elevated pressures in a sealed container
High T c superconducting compounds are made by forming a reaction mixture of the oxides of Sr, Cu, Ca and Tl, compressing these into a hardened body, and placing the hardened body into a...
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5112801 |
Mechanical alignment of particles for use in fabricating superconducting and permanent magnetic materials
A method for mechanically aligning oriented superconducting or permanently magnetic materials for further processing into constructs. This pretreatment optimizes the final crystallographic...
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5108985 |
Bi-Pb-Sr-Ca-Cu oxide superconductor containing alkali metal and process for preparation thereof
Disclosed is a process for the preparation of a composite metal oxide superconductor, in which a composite metal oxide composition comprising Bi, Pb, Sr, Ca and Cu and further containing an alkali...
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5100866 |
Process for producing compound oxide high temperature superconducting material Tl.sub.y Cu.sub.l-y O.sub.3-z where RE=Y or La
A superconducting material and a process for producing a superconducting material comprising a compound oxide represented by the general formula: (Ba, γ) x (α,β) 1 - x ε y Cu 1 -y O 3 -z...
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5061681 |
Superconducting thin material and a method for preparing the same
A now superconducting material comprising a compound oxide represented by the general formula: (Sr,γ) x (La,δ) 1 -x ε y Cu 1 -y O 3 -z in which "γ" represents an element of IIa group of...
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5059584 |
Method for hot isostatic pressing a ceramic article
A method for treating a ceramic article by hot isostatic pressing provides for the placement of the ceramic article in a capsule with an oxygen donor which is separated from the ceramic article by...
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5059585 |
Method of making a sputtering target for a bismuth based superconductor
A method for fabricating a low resistivity target for sputtering a bismuth-calcium-strontium-copper oxide superconductor. The method includes the steps of: preparing ingredient powders of a calcium...
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5045525 |
Method for the synthesis of a high-temperature superconductor of a defined composition
A method for the synthesis of an oxide high-temperature superconductor of defined composition by sintering of the starting oxides, wherein sintering is effected in a chemically and phyically closed...
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5041416 |
Superconductive metal matrix composites and method for making same
A superconductor metal matrix composite formable into an electrical current carrying material. A superconductive particulate is intermixed with a normal metal matrix, pressed into form and heated...
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5026680 |
Method of manufacturing a powder of bi-based superconductive oxide containing lead and method of manufacturing a sintered body therefrom
A Ca carbonate powder, a Sr carbonate powder, and a Cu oxide powder are mixed in predetermined proportions, and sintered at a first predetermined temperature into a Ca-Sr-Cu--O oxide sintered body....
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5010054 |
Method for the preparation of superconducting products
Superconducting products on the basis of crystalline superconducting compounds having the general formula (Me 1 ) p (Me 2 ) q Cu 3 O x F Y , wherein Me 1 is selected from Y, Sc and the...
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4999338 |
Preparation of metal/superconducting oxide composites
Subject a heated, non-molten, intimate admixture of a base metal and a superconducting oxide material to pressure sufficient to form a densified article. The densified article is either...
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4980340 |
Method of forming superconductor
The method of producing a superconducting product includes: (a) providing a pressed-powder preform consisting essentially of YBa 2 Cu 3 O 7 -x where 0.0<x<0.5, (b) pre-heating the...
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4975412 |
Method of processing superconducting materials and its products
A method for fabricating relatively dense monoliths of superconducting material and relatively dense composite monoliths of superconducting material and binder material. The method includes the...
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4957901 |
Method of manufacturing an object from superconductive material
A method of making an object of superconductive material in the form of an oxide by isostatic pressing of a body preformed from a powder material with an oxygen-containing pressure medium at a...
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4939119 |
Process for producing a superconducting article
A process for producing a superconducting article having a layer of compound oxide of quasi-perovskite type oxide crystal structure by electrodeposition technique. The process is characterized by...
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