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| Number | Title | Issue Date |
| 7026271 | Chemical pinning centers for high temperature superconductors An oxide superconductor includes a textured superconducting material including an array of defects, where the defects are a compound of two elements foreign to the superconductor, plus other elements native to the superconductor. The two foreign elements include one... | 04/11/2006 |
| 6620768 | Production and processing of (Bi, Pb)SCCO superconductors A novel process of the production and processing of high quality, high Tc (Bi,Pb)SCCO superconductors starts with fabrication of a precursor article including selected intermediate phases with desired chemical and structural properties. The pre... | 09/16/2003 |
| 6592782 | Materials and methods for the separation of oxygen from air Metal oxides particularly useful for the manufacture of catalytic membranes for gas-phase oxygen separation processes having the formula: Ax A'x' A"2-(x+x') By Fey' B"2-(y+y') O5+z wh... | 07/15/2003 |
| 6525002 | Textured high-temperature superconductors An oxide superconductor includes a textured superconducting material including an array of defects with a neutron-fissionable element, or with at least one of the following chemical elements: uranium-238, Nd, Mn, Re, Th, Sm, V, and Ta. The array of defect... | 02/25/2003 |
| 6365553 | Oxide superconductor having excellent crack-resistant property and process of producing same The invention provides an oxide superconductor capable of sufficiently withstanding external forces such as a large electromagnetic force and thermal stresses accompanying rapid heating and cooling while in service, and internal stresses so as to be able ... | 04/02/2002 |
| 6239079 | High temperature superconductor composite material A high temperature superconductor composite material capable of working at liquid nitrogen and higher temperatures K>77 has a sintered compound of intermixed components including high temperature superconductor ceramics, a silver dope, and sintering produ... | 05/29/2001 |
| 6172007 | Oxide superconductor An oxide superconductor which exhibits an uniform and high critical current is disclosed. Further, a method of manufacturing this oxide superconductor is disclosed, namely, a RE--Ba--Cu--O oxide superconductor (RE is one or more kinds of rare earth elemen... | 01/09/2001 |
| 6126855 | Reaction products of lyotropic liquid crystal salt complexes The invention provides superior reaction products of copper, especially ultra-clean copper and polymeric chemical complexes. The polymers are unusual in that they provide polymeric systems of extensive conjugated double bond networks well suited for elect... | 10/03/2000 |
| 6083885 | Method of forming textured high-temperature superconductors An oxide superconductor includes a textured superconducting material including an array of defects with a neutron-fissionable element, or with at least one of the following chemical elements: uranium-238, Nd, Mn, Re, Th, Sm, V, and Ta. The array of defect... | 07/04/2000 |
| 6063735 | Superconductor mixture A mixture suitable for the production of melt-processed high-temperature superconductors capable of producing a high levitation force. The mixture contains YBa2 Cu3 O7-x powder with a very low content of copper oxide, i.e.... | 05/16/2000 |
| 5994275 | Processing of oxide superconductors An oxide superconductor article comprises silver and an oxide superconductor having the formula Bi2-y Pby Sr2 Ca2 O10+x, where 0ࣘxࣘ1.5, and 0.3ࣘyࣘ0.4, the oxide superconductor characterized by... | 11/30/1999 |
| 5981442 | Neodymium-barium-copper-oxide bulk superconductor and process for producing the same An Nd-Ba-Cu-O bulk superconductor includes oxide including metallic elements of neodymium (Nd), barium (Ba) and copper (Cu), and has a structure in which fine particles of Nd4 Ba2 Cu2 O10 (i.e., Nd422) are dispe... | 11/09/1999 |
| 5958842 | Melt processing of Bi--2212 superconductors using alumina Superconducting articles and a method of forming them, where the superconducting phase of an article is Bi2 Sr2 CaCu2 Oy (Bi-2212). Alumina is combined with Bi-2212 powder or Bi-2212 precursor powder and, in ord... | 09/28/1999 |
| 5952268 | Superconductor material and a method of preparing superconductor materials The present invention relates to method of preparing a superconductor material consisting in preparing a precursor constituted by a powder of Ba2 Can-1 Cun+1 Ox or Ba2 Can-1 Cun+1 ... | 09/14/1999 |
| 5883050 | Hg-based superconducting cuprate films A Hg-based superconducting cuprate film on a substrate is disclosed, which comprises a compound having the formula Hg1-x Mx Ba2 Can-1 Cun Oy, M is a metal cation, x ranges from 0 to 1, n is... | 03/16/1999 |
| 5858926 | Process for preparing mercury-barium-calcium-copper-oxide-based superconductor materials The present invention is directed to a process for preparing a HgBaCaCuO superconductor by annealing a precursor mixture comprising a lower member of the homologous HgBaCaCuO superconductor series, a source of calcium and a source of copper. The precursor... | 01/12/1999 |
| 5849667 | Superconductor and method of producing same A high critical temperature and high critical current density superconductor is disclosed which contains a metal oxide expressed by the following formula (I): (R11-x, Bax)Ba2 Cu3 Od (I) wh... | 12/15/1998 |
| 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 |
| 5677265 | Process for oxygenation of ceramic high Tc superconductors A process for the oxygenation of ceramic high Tc superconductors is disclosed. The superconductor is formed from a sintered powdered ceramic. Microchannels are formed in the ceramic material by embedding in the powder a plurality of wires or fi... | 10/14/1997 |
| 5674815 | Oxide superconductor An oxide superconductor composed of Cu, O and M (M is Ba, Sr and/or Ca) and including alternately arranged at least one rock-salt structure section and at least one infinite layer structure section, wherein the rock-salt structure section consists of two ... | 10/07/1997 |
| 5648319 | 1-2-3 single crystal oxide superconductor containing 211 phase and process for preparation thereof Disclosed is an oxide superconductor comprising an oxide of RE, Ba and Cu, which consists of a superconductor having a texture wherein the crystal directions of the 123 phase in the matrix are uniform, large angle grain boundaries having an directional di... | 07/15/1997 |
| 5646097 | Method of fabricating a (1223) Tl-Ba-Ca-Cu-O superconductor A method is disclosed for fabricating a polycrystalline thallium-containing superconductor having high critical current at elevated temperatures and in the presence of a magnetic field. A powder precursor containing compounds other than thallium is ... | 07/08/1997 |
| 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 |
| 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 |
| 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 |
| 5578551 | Method for synthesis of high-temperature Hg-Ba-Ca-Cu-O (HBCCO) superconductors The present invention is a controlled vapor/solid reaction process for the synthesis of samples of bulk compositions with a structure defined by the homologous series HgBa2 Can-1 Cun O2n+2+δ [Hg-12(n-1)n] with ... | 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 |
| 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 |
| 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 |
| 5525581 | Ceramic superconductor having a heterogeneous composition distribution and method of preparing the same A Bi--Sr--Ca--Cu--O ceramic superconductor contains 0112 phases which are finely dispersed in a 2212-phase matrix with its c-axis oriented perpendicular to a growth direction. A method of preparing a Bi--Sr--Ca--Cu--O ceramic superconductor comprises the ... | 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 |
| 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 |
| 5508257 | Superconducting composite Superconducting composite comprising a matrix made of superconducting sintered mass composed of perovskite type or quasi-perovskite type oxide and metal phase dispersed in the superconducting mass with a proportion of from 10 to 70 volume % with respect t... | 04/16/1996 |
| 5504138 | Circuit board devices with superconducting bonds and lines Circuit board devices are provided based on use of high temperature superconducting ceramic polymers comprising high temperature superconducting ceramic powders distributed in electrically insulative organic polymers which are thermosetting by reaction of... | 04/02/1996 |
| 5492885 | Mercury-thallium-barium-calcium-strontium-copper-oxide 1223 superconductor and method of making same Mercury-thallium based superconductors with the formula Hg1-x Tlx Ba2 (Ca1-y Sry)2 Cu3 O8+δ ; change "their preparing method, in particular characterized in that it" to an... | 02/20/1996 |
| 5472527 | High pressure oxidation of precursor alloys A method for forming unsegregated metal oxide-silver composites includes preparing a precursor alloy comprising silver and precursor elements of a desired metal oxide and oxidizing the alloy under conditions of high oxygen activity selected to permit diff... | 12/05/1995 |
| 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 |
| 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 |
| 5462922 | Superconductive material, a superconductive body, and a method of forming such a superconductive material or body A superconductive material has the formula (Tl1-X1-x2 PbX1 BiX2) (Sr1-X3 BaX3)ଲ Caγ Cuδ O.zeta. where 0ࣘX1ࣘ0.8 0ࣘX2ࣘ0.5 0ࣘX3ࣘ1.0... | 10/31/1995 |
| 5457086 | Superconducting composite for magnetic bearings A composite includes granules of Type II superconducting material and granules of rare-earth permanent magnets that are distributed in a binder. The composite is a two-phase structure that combines the properties of the superconductor and magnets with the... | 10/10/1995 |