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| Number | Title | Issue Date |
| 7919435 | Superconductor films with improved flux pinning and reduced AC losses The present invention relates to a method for producing a defect-containing superconducting film, the method comprising (a) depositing a phase-separable layer epitaxially onto a biaxially-textured substrate, wherein the phase-separable layer includes at least two ph... | 04/05/2011 |
| 7902119 | Porous ceramic high temperature superconductors and method of making same Porous ceramic superconductors having a film thickness over 0.5 microns are provided. The superconducting material is applied to a vicinal substrate and optionally nanoparticles are inserted to release local strain. The resultant superconductors exhibit improved Jc ... | 03/08/2011 |
| 7820596 | Thick film high temperature superconducting device supporting high critical currents and method for fabricating same A thick film superconductor includes a substrate and a superconducting thick film formed on the substrate. The thick film is 1-20 microns thick with an average twin spacing to film thickness ratio of about 0.016, and is formed from an aqueous solution of YBC ions do... | 10/26/2010 |
| 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 |
| 6961597 | Strips for imparting low nonlinearity to high temperature superconductor microwave filters Based on its superconductive properties relating to “nonlineanty,” a conventional HTS strip is divisible into three “domains,” namely, a medial domain and two lateral domains. The nonlinearity associated with the conventional strip's medial domain is conside... | 11/01/2005 |
| 6949490 | High-TC superconducting ceramic oxide products and macroscopic and microscopic methods of making the same High-Tc superconducting ceramic oxide products and macroscopic and microscopic methods for making such high-Tc superconducting products. Completely sealed high-Tc superconducting ceramic oxide provides are made by a macroscopic process including the steps of pressin... | 09/27/2005 |
| 6869915 | 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... | 03/22/2005 |
| 6809066 | Ion texturing methods and articles Ion texturing methods and articles are disclosed. ... | 10/26/2004 |
| 6638895 | Method for fabricating high aspect ratio structures in perovskite material A method of fabricating high aspect ratio ceramic structures in which a selected portion of perovskite or perovskite-like crystalline material is exposed to a high energy ion beam for a time sufficient to cause the crystalline material contacted by the io... | 10/28/2003 |
| 6630426 | Method of increasing the critical temperature of a high critical temperature superconducting film and a superconducting structure made using the method A method for increasing the critical temperature, Tc, of a high critical temperature superconducting (HTS) film (104) grown on a substrate (102) and a superconducting structure (100) made using the method. The HTS film has an a-b plane parallel... | 10/07/2003 |
| 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 |
| 6493411 | Method for producing formed bodies of high temperature superconductors having high critical currents Thermal neutron irradiation of superconducting body compositions into which Li or B has been incorporated as a unit cell external or internal dopant introduces by the nuclear reaction of the dopant pinning centers which substantially improve the critical ... | 12/10/2002 |
| 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 |
| 5912210 | Enhancement of persistent currents in high TC superconductors There is disclosed herein an invention for increasing the current carrying capability of high-Tc superconductor materials. The inventive method includes irradiating such superconductors with light particles, such as neutrons, protons and thermal neutrons,... | 06/15/1999 |
| 5856205 | Josephson junction device of oxide superconductor having low noise level at liquid nitrogen temperature In a Josephson junction device comprises two superconducting electrodes formed of an oxide superconductor and connected through a Josephson junction, a temperature dependent noise of the Josephson junction becomes the minimum at a liquid nitrogen temperat... | 01/05/1999 |
| 5731270 | Oxide superconductor and method and apparatus for fabricating the same An oxide is formed which will form an oxide superconductor containing a Cu-O atomic layer. The oxide is hydrogenated. The oxide is oxidized after it is hydrogenated. The hydrogenation and the oxidization are executed simultaneously with or after the oxide... | 03/24/1998 |
| 5683967 | Method for increasing the critical current density in type II superconducting materials Method for increasing the critical current density in Type II superconducting materials. The generation of a regular pattern of defects for pinning vortices, where the density of pinning sites is matched to the density of vortices produced by a chosen mag... | 11/04/1997 |
| 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 |
| 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 |
| 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 |
| 5196397 | High temperature superconducting ceramic copper oxide perovskite with enhanced upper critical field (Hc2) A high temperature superconducting ceramic copper oxide perovskite with enhanced upper critical field (Hc2) and increased current carrying capacity caused by exposure to gamma radiation.... | 03/23/1993 |
| 5137866 | Method for producing molded article of ceramic oxide superconductor A molded article of ceramic oxide superconductor having an increased critical current density is produced by a method including sintering a powdery mixture of oxides and/or carbonates of elements which constitute the ceramic oxide superconductor to obtain... | 08/11/1992 |
| 5093310 | Method of enhancing the upper critical field (HC2) in high temperature superconducting ceramic copper oxide perovskites A method of enhancing the upper critical field (Hc2) in high temperature superconducting ceramic copper oxide perovskites by exposure to gamma radiation.... | 03/03/1992 |
| 5073209 | Process embodiments for improving the electrical properties of conductors 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... | 12/17/1991 |
| 4996192 | Y-Ba-Cu-O superconductor containing radioactive dopants A polycrystalline Y-Ba-Cu-O superconductor doped with sufficient 235 U and/or 239 Pu atoms is irradiated with thermal neutrons to produce from about 2.5×1014 to about 50×1014 fission events per cubic centimete... | 02/26/1991 |
