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| Number | Title | Issue Date |
| 7112556 | Superconducting ceramics Superconducting ceramics having relatively high critical temperatures are composed of rare earth metals, alkaline earth metals and copper. They have few defects and a limited polycrystalline interfacial area. ... | 09/26/2006 |
| 7056866 | Superconductivity in square-planar compound systems Described is a superconducting composition comprising an oxide complex of the formula [L1−xMx]aAbOy wherein L is lanthanum, lutetium, yttrium, or scandium; A is copper, bismuth, titanium, tungsten, zirconium, ... | 06/06/2006 |
| 6699820 | Method for making a superconductor with enhanced current carrying capability The present invention concerns the improvement of the supercurrent carrying capabilities, i.e. the increase of critical current densities, of bicrystalline or polycrystalline superconductor structures, especially of high-Tc superconductors. By ... | 03/02/2004 |
| 6573220 | Superconductor with enhanced current density and method for making such a superconductor The present invention concerns an enhancement of the supercurrent carrying capabilities of bicrystalline or polycrystalline high-Tc superconductors, i.e. the critical current densities in such superconductors. The current transport properties a... | 06/03/2003 |
| 6559103 | Method for producing superconducting oxide compounds A process is provided for preparing solid superconducting mixed-metal oxides whereby the superconductor can be formed into any predetermined shape by way of viscous sol precursors. The superconductors are also formed by this process into homogeneous phase... | 05/06/2003 |
| 6310297 | Strongly-linked oxide superconductor and a method of its manufacture A strongly-linked polycrystalline oxide superconductor article includes an oxide superconductor selected from the group consisting 124-type and 247-type oxide superconductors having fine, highly aligned oxide superconductor grains less than μm long a lon... | 10/30/2001 |
| 6010982 | Sodium-intervened superconductor and its manufacturing method The present invention relates to a sodium-intervened superconductor and its manufacturing method and more particularly, to the sodium-intervened superconductor expressed by the following Formula 1 and its manufacturing method, wherein the superconductor, ... | 01/04/2000 |
| 5972846 | Article comprising textured superconductive cuprate material Articles according to the invention comprise a superconductive cuprate (e.g., YBa2 Cu3 O7) body containing elongate grains measuring at least about 10 μm along the long axis and having an aspect ratio of at least 10:1. Bo... | 10/26/1999 |
| 5872079 | Superconductor and precursor therefor, their preparation and use of superconductor A superconductor comprising a compound of the formula (II): R1+x Ba2-x Cu3 O7-y1 (II) wherein not less than 40% of a crystal of the superconductor shows phase separation, and at (temperature, magnetic fi... | 02/16/1999 |
| 5869431 | Thin film seeds for melt processing textured superconductors for practical applications A method of fabricating bulk superconducting material such as RBa2 Cu3 O7-δ where R is La or Y comprising depositing a thin epitaxially oriented film of Nd or Sm (123) on an oxide substrate. The powder oxides of RBa2... | 02/09/1999 |
| 5851954 | Superconducting oxide-based composite material A composite based on a superconducting oxide having a high critical temperature, characterized by the fact that it is constituted by glass and said oxide, the glass being such that its vitreous transition temperature is not greater than 750K, the volume f... | 12/22/1998 |
| 5849668 | Oxide superconductor and method for manufacturing the same An oxide superconductor which exhibits an uniform and high critical current density. Further, a method of manufacturing this oxide superconductor, namely, a RE--Ba--Cu--O oxide superconductor (RE is one or more kinds of rare earth elements including Y) by... | 12/15/1998 |
| 5846912 | Method for preparation of textured YBa2 Cu3 Ox superconductor The present invention relate to textured YBa2 Cu3 Ox (Y-123) superconductors and a process of preparing them by directional recrystallization of compacts fabricated from quenched YBCO powders at temperatures about 100° C.... | 12/08/1998 |
| 5814585 | Bi(Pb)SrCaCuO superconductors The invention relates to a spray pyrolytic process for the preparation of multi-element metal oxide powders useful as precursors of high temperature superconductor ceramics. Aerosols of aqueous solutions containing corresponding metal salts admixed in the... | 09/29/1998 |
| 5620945 | Process for forming a superconductive fiberform ceramic composite Processes are provided for forming a superconductive composite, comprising a superconductive metal oxide and a ceramic. The composite may be formed in any desired shape. Liquid nitrogen can be held around the superconductor longer and delivered in a more ... | 04/15/1997 |
| 5614472 | Spray-pyrolysis process of preparing superconductor precursors The invention relates to a spray pyrolyric process for the preparation of multi-element metal oxide powders useful as precursors of high temperature superconductor ceramics. Aerosols of aqueous solutions containing corresponding metal salts admixed in the... | 03/25/1997 |
| 5614471 | Superconductive material A superconductive material is in composition expressed as Y0.33 Ba0.67)a Cub (OF)c. The usual a, b and c are so selected as to satisfy a relation expression ax (mix valence of A)+bx (mix valence of B)... | 03/25/1997 |
| 5597782 | Method for microwave processing of high temperature superconductors A method for improving the phase purity of a multiphase ceramic high temperature superconductor by selective microwave heating of undesired phases in a multiphase material to cause a phase transformation of the undesired phase to the desired phase. The se... | 01/28/1997 |
| 5591696 | Chemically tailored corrosion resistant high-TC superconductors A corrosion resistant high temperature superconductor and a method of preparing said superconductors involving substitution of ions in the lattice to relieve stress and strain caused by mismatched bond lengths. Specific examples of such superconductors ar... | 01/07/1997 |
| 5589441 | Superconductive fiberform ceramic composite Processes are provided for forming a superconductive composite, comprising a superconductive metal oxide and a ceramic. The composite may be formed in any desired shape. Liquid nitrogen can be held around the superconductor longer and delivered in a more ... | 12/31/1996 |
| 5583093 | Metal oxide material with Ln, Sr, Cu, O, optionally Ca, and at least one of Fe, Co, Ti, V, Ge, Mo, and W Provided is a metal oxide material represented by the composition formula of Lna Srb Cu3-x Mx Oc, where 2.7ࣘa+bࣘ3.3; 0.8 ࣘaࣘ1.2; 6ࣘcࣘ9; and 0.05 ࣘxࣘ0.7, Ln is at least one element sele... | 12/10/1996 |
| 5578553 | 1-2-4 copper oxide superconductor, a process for its production, and a copper used therein In the production of a 124-type or 123-type superconductor by a sol-gel method using alkoxides of respective metals, the use of a compound wherein a sec-butoxy group and a hydroxy group are coordinated with a copper atom gives a superconductor composed of... | 11/26/1996 |
| 5571776 | Single crystalline bulk oxide superconductor and process for producing same Enlargement of a crystal of a bulk oxide superconductor of REBa2 Cu3 O7-x, wherein RE is at least one of Y and rare earth elements, is effected by three dimensionally arranging layers of REBa2 Cu3 O | 11/05/1996 |
| 5563117 | Copper oxide superconductor, a process for its production, and a copper used therein In the production of a 124-type or 123-type superconductor by a sol-gel method using alkoxides of respective metals, the use of a compound wherein a secbutoxy group and a hydroxy group are coordinated with a copper atom gives a superconductor composed of ... | 10/08/1996 |
| 5559084 | Superconducting 2-4-7 oxides Disclosed are a composition and a method of preparing a composition of the formula R2 Q4 Cu7 Ox, wherein R is a rare-earth ion or a mixture of rare earth ions, and Q is Ba, or Ba combined with either Sr or Ca or... | 09/24/1996 |
| 5556831 | Method of treating a part made of a superconductive ceramic of the (Ln).sub. Ba2 Cu3 O7-δ type A method of treating a part made of a superconductive ceramic of the (Ln)1 Ba2 Cu3 O7-δ type, where Ln is chosen from the rare earth elements other than cerium and terbium, the method being designed to reduce t... | 09/17/1996 |
| 5552370 | Silver additives for ceramic superconductors A method for making metal/ceramic superconductor thick film structures including the steps of preparing a silver/superconductor ink, applying the ink to a substrate, evaporating the ink's binder, decomposing a silver compound in the residue to coat the su... | 09/03/1996 |
| 5552371 | YBA CUO-type superconducting material based apparatus for auto-filling liquid nitrogen An apparatus and method for continuously monitoring the liquid nitrogen level a liquid nitrogen container and automatically refilling liquid nitrogen from a liquid nitrogen reservoir when the liquid nitrogen in the container falls below a predetermined le... | 09/03/1996 |
| 5536705 | Superconductor with 1212 phase of Hg,Pb,Sr,Ba,Ca,Y,Cu oxide A family of mercury-containing Sr-(Ca.cndot.Y)-Cu-O superconducting materials having a zero-resistance temperature, Tc(zero), greater than 90 K so that they can be cooled to and maintain the desired superconducting characteristics using relativ... | 07/16/1996 |
| 5525585 | Process for preparing YBa2 Cu3 O7-x superconductors The present invention provides a process for the preparation of YBa2 Cu3 O7-x superconductor which comprises surrounding a sintered material in which the molar ratio of Y:Ba:Cu is 2:1:1 with liquid-forming powder and subje... | 06/11/1996 |
| 5523284 | Process for preparing a bulk textured superconductive material In accordance this invention, there is provided a process for making a bulk superconductive material. In the first step of this process, a diffusion couple is formed from superconductor oxide and impurity oxide. Thereafter, the diffusion couple is heated ... | 06/04/1996 |
| 5512542 | Metallic oxide with boron and process for manufacturing the same A novel metallic oxide of a Ln-Ca-Sr-Ba-Cu-B-O type and a process for manufacturing such a metallic oxide. The above metallic oxide has a composition expressed by the following formula (I): (Ln1-a Caa)(Sr2-b Bab)(Cu | 04/30/1996 |
| 5508253 | REBa2 Cu3 O7-y type oxide superconductive material having high critical current density and process for preparation thereof The present invention is characterized in that oxides of Y, Ba and Cu having a superconductive substance-forming composition are melted, the melt is rapidly cooled and solidified, the obtained sheet is heated at a temperature of 1000° to 1350° C. to pro... | 04/16/1996 |
| 5508256 | Oxide high-temperature superconducting material, method of preparing same and superconducting wires A method of producing a high-temperature oxide superconducting material, which comprises the steps of (a) preparing a material corresponding to an oxide superconductor of the perovskite type structure consisting essentially of a first member selected from... | 04/16/1996 |
| 5492886 | Method of producing highly oxidized superconductors containing barium, copper, and a third metal Novel superconducting materials in the form of compounds, structures or phases are formed by performing otherwise known syntheses in a highly oxidizing atmosphere rather than that created by molecular oxygen at atmospheric pressure or below. This leads to... | 02/20/1996 |
| 5486501 | Nonequilibrium precursors for superconductor materials and process for making shaped superconductor articles therefrom BaCuO2.5 containing precursors for superconducting materials and process for making shaped superconductor articles therefrom.... | 01/23/1996 |
| 5468724 | High temperature oxide superconductor Disclosed herein are high-temperature oxide superconductors of RBa2 Cu4 O8 type, with Ba partly replaced by Sr or Ca, or with R and Ba partly replaced by Ca and Sr, respectively, as represented by the chemical composition ... | 11/21/1995 |
| 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/cm2 at zero magnetic field and 77° K is disclosed. The 123 superconductor, of the formula L1 Ba2 Cu3 O6 | 10/31/1995 |
| 5432143 | Method of producing an RBa2 Cu3 Oy microcrystalline structure in which R denotes a lanthanide A method of producing a microcrystalline RBa2 Cu3 Oy structure where R denotes a lanthanide chosen from Y, La, Nd, Sm, Eu, Gd, Tb, Ho, Er, Tm, Yb and Lu and where y has a value between 6.9 and 7 starts with a powder of com... | 07/11/1995 |
| 5430008 | Method and composition for improving flux pinning and critical current in superconductors Superconducting materials and methods of forming superconducting materials are disclosed. Highly oxidized superconductors are heated at a relatively high temperature so as to release oxygen, which migrates out of the material, and form a non-superconducti... | 07/04/1995 |
