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| Number | Title | Issue Date |
| 7135438 | Method of making cuprate superconducting material A class of superconductive materials containing copper-oxygen bonding and with mixed cation-occupancy designed with a view to size and valence consideration yield useful values of critical temperature and other properties. Uses entail all applications which involves... | 11/14/2006 |
| 6982240 | Method for making a superconductor device A superconducting device operable at temperatures in excess of 30° K. and a method for making the device are described. A representative device is an essentially coplanar SQUID device formed in a single layer of high Tc superconducting material, the SQUI... | 01/03/2006 |
| 6740259 | Method of manufacture of ceramic materials A method of manufacture of a ceramic material comprises the steps of preparing a melt of the ceramic materials, cooling the melt slowly through the freezing point of the material to initiate solidification, holding the melt at a temperature below the freezing point ... | 05/25/2004 |
| 6653259 | Fabrication of large bulk high temperature superconducting articles A method of fabricating large bulk high temperature superconducting articles which comprises the steps of selecting predetermined sizes of crystalline superconducting materials and mixing these specific sizes of particles into a homogeneous mixture which ... | 11/25/2003 |
| 5932524 | Method of manufacturing superconducting ceramics A high Tc superconducting ceramic material is produced by a method in which a mixture of chemicals in suitable amounts is compacted into a desired form. The compacted mixture is then fired and, at the same time, an electric current is caused to pass throu... | 08/03/1999 |
| 5845395 | Method of producing high-temperature superconductor thin film device A high-temperature superconductor (HTS) thin film device such as a patch antenna or a microstrip line is produced by using a substrate of a low-permittivity material such as polytetrafluoroethylene in which fine particles of glass fiber are dispersed. Ini... | 12/08/1998 |
| 5795849 | Bulk ceramic superconductor structures A method for producing a superconductor assembly includes preparing a first bulk ceramic superconductor having a first essentially random pattern of superconductor domains of a copper-oxide ceramic superconductor and non-superconductor domains at a critic... | 08/18/1998 |
| 5643856 | Preparartion of superconducting oxides and oxide-metal composites 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 composites are prepared in which a noble metal phase intimate... | 07/01/1997 |
| 5591698 | Low temperature (T lower than 950° C.) preparation of melt texture YBCO superconductors A melt textured growth process for bulk YBCO at temperatures below 950° C. is provided so that the material (YBCO) can be combined with silver to produce bulk superconductors by providing a combination of precursors that provide melting at 950° C. or lo... | 01/07/1997 |
| 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 |
| 5578555 | Method of monitoring the fabrication of Bi-2223 material having a high critical temperature A method of monitoring the fabrication of a superconductive material having a high critical temperature is wherein: the starting material is a mixture of powders of precursors for said material having stoichiometric proportions appropriate for the desired ... | 11/26/1996 |
| 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 |
| 5534490 | (Hg,Cu)Ba2 Ca2 Cu3 Oy oxide superconductor and method of preparing the same Provided is an Hg-Ba-Ca-Cu-O oxide superconductor having a high superconductivity transition temperature Tc and a method which can prepare the same in excellent reproducibility. This oxide superconductor consists essentially of Hg, Ba, Ca, Cu and O, and i... | 07/09/1996 |
| 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 |
| 5459124 | Process for producing oxide superconductor A process for producing an oxide superconductor, comprising putting a formed body of raw material powders for forming an oxide superconductor on silver or silver oxide within a pan which does not melt at the melting point of silver, heating the pan to a t... | 10/17/1995 |
| 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 composites are prepared in which a noble metal phase intimate... | 08/08/1995 |
| 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 |
| 5430010 | Process for preparing oxide superconductor The present invention relates to a process for preparing an oxide superconductor having a high critical current density, a uniform structure and an excellent mechanical property and thermal stability, which comprises heating raw material powders of a REBa... | 07/04/1995 |
| 5413980 | High-T superconductor and process for preparing it Polycrystalline high-Tc superconductors of the formula Mm Ee ROx, which contain grains which are crystallographically aligned to the greatest possible extent, where M is at least one trivalent element such as a ... | 05/09/1995 |
| 5411938 | Sealed glass coating of high temperature ceramic superconductors A method and article of manufacture of a lead oxide based glass coating on a high temperature superconductor. The method includes preparing a dispersion of glass powders in a solution, applying the dispersion to the superconductor, drying the dispersion b... | 05/02/1995 |
| 5380703 | Halogen-doped superconductive fullerenes A superconductive fullerene and a process for making such superconductive fullerene are provided. The process involves contacting-a quantity of fullerene with the vapor of an interhalogen compound such as ICl. The halogen doped fullerenes exhibited a tran... | 01/10/1995 |
| 5380702 | Method for texturing 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... | 01/10/1995 |
| 5376622 | Method of manufacturing an ingot of a high critical temperature superconductive oxide A melting-and-solidification manufacturing method for manufacturing an ingot of a high critical temperature superconductive oxide belonging, in particular, to the YBaCuO, BiSrCaCuO, or TlBaCaCuO families, wherein: an ingot of oxide having the appropriate stoic... | 12/27/1994 |
| 5371066 | Method for oxidizing precursor compounds of superconducting oxides A precursor material is superoxidized to a superconducting oxide material in an atmosphere containing a reactive component that reacts with and removes hydroxide ion (OH-), replacing it with peroxide ion (O-). Preferred reactive comp... | 12/06/1994 |
| 5369087 | Method for the rapid production of superconducting ceramic wires or ribbons A melt-texturing method for producing high transition temperature superconducting ceramic elements of given length, such as wires of Y Ba2 Cu3 O7-δ, which method is much faster and efficient than the existing ones. In thi... | 11/29/1994 |
| 5356869 | Metal oxide superconducting powder comprised of flake-like single crystal particles Powder of a ceramic superconducting material is synthesized such that each particle of the powder is a single crystal having a flake-like, nonsymmetric morphology such that the c-axis is aligned parallel to the short dimension of the flake. Nonflake powde... | 10/18/1994 |
| 5348936 | Metal-doped fullerenes and synthetic methods therefor Superconducting, metal-doped fullerenes are provided, along with processes for their preparation in relatively high stoichiometric purity. In one embodiment, the processes provide fullerenes of the formula Mx Cq, where M is a metal, ... | 09/20/1994 |
| 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 I2 /O2 mixtures in a reactive atmosphere process. A higher Tc | 09/06/1994 |
| 5338722 | Method of forming superconducting oxide ceramic materials having high critical densities of superconducting current Superconducting oxide ceramics having a high density of superconducting current are formed without making use of very high temperatures higher than 1000° C. Superconducting oxide material is placed in a crucible, melted and fired at a relatively low temp... | 08/16/1994 |
| 5334557 | Method of preparing YBa2 Cu3 O7 powder for forming by drawing-lamination A method of preparing a powder of YBaCuO [phase 123] suitable for forming by drawing-lamination, which includes: preparing a powdered reactive mixture of precursors of purity greater than 99% and with a stoichiometry accurate to within less than 1%, binding th... | 08/02/1994 |
| 5334579 | Process for preparing superconducting material A process for producing a superconducting material comprising a compound oxide represented by the general formula: (Ba, Ca)x (, Dy)1-x Tly Cu1-y O3-z wherein "" represents Y or La; the atomic rati... | 08/02/1994 |
| 5332721 | Method of fabricating thallium-containing ceramic superconductors An improved technique for the fabrication of thallium-based superconducting oxides, and particularly Tl:Ba:Ca:Cu:O 2223 oxides, is described which allows production of very pure superconductors (>95% 2223 phase) having excellent structural characteristics... | 07/26/1994 |
| 5326747 | Process for patterning layered thin films including a superconductor A process for patterning layered thin films comprising a bottom oxide superconductor (1) layer deposited on a substrate (3) and another thin film (2) deposited on the bottom superconductor layer and consisting of insulator, ordinary conductor or oxide sup... | 07/05/1994 |
| 5324495 | Method of making metal fulleride The present invention relates to a new process for making metal fulleride compositions having the formula An (Cx)m, wherein A is a metal cation and Cx is a fullerene anion, preferably Cx is C60 | 06/28/1994 |
| 5314867 | Process for making Tl-Ba-Ca-Cu-O superconductors using thallium vapor A process of making high temperature Tl-based superconductors. The process includes the steps of reacting solid Ba--Ca--Cu-oxides with Tl2 O3 vapor. The process allows high quality Tl-based superconductors to be easily fabricated.... | 05/24/1994 |
| 5306700 | Dense melt-based ceramic superconductors A method is disclosed for fabricating bulk superconducting materials into shaped articles, including ones of relatively large sizes and complex shapes, which have high densities, high integrity, high magnetization and critical current densities. A mixture... | 04/26/1994 |
| 5300483 | Process for preparing shaped superconductor materials via nonequilibrium precursors A method is provided for preparing a precursor of a superconductor containing atoms of oxygen, atoms of copper and atoms of at least two other metals and sufficient atoms of oxygen so that up to, but no more than, one atom of copper is in the trivalent st... | 04/05/1994 |
| 5300486 | Synthesis of BiPbSrCaCuO superconductor A process and a precursor composition for preparing a lead-doped bismuth-strontium-calcium-copper oxide superconductor of the formula Bia Pbb Src Cad Cue Of wherein a is from about 1.7 to a... | 04/05/1994 |
| 5270293 | Molten salt synthesis of anisotropic powders A process for preparing a superconducting, ceramic material with an increased critical current is described. In this process, the materials used to form the superconducting material are mixed with at least one inorganic salt, and the mixture containing th... | 12/14/1993 |
| 5270295 | Process for preparing superconductors and compositions useful therein A process for preparing a composition having the general formula REBa2 Cu4 Oy where RE is a rare earth element such as dysprosium and including yttrium and the subscript "y" is about 8.0. The process utilizes nitric acid a... | 12/14/1993 |
