Did You Know...
...that Charles Goodyear performed some of his experiments on rubber while in debtor's prison? He was there so often he referred to it as his "hotel". Chronically in debt because of poor business sense and ill health, Goodyear depended on the generosity of friends and family. Even after he unlocked the secret to vulcanizing rubber, he was unable to improve his financial situation. When he died, his estate was $200,000 in debt.
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| Number | Title | Issue Date |
| 6258753 | Process for producing optimized melt-textured bodies based on the high-temperature superconductor YBa2Cu3O7 (YBCO) The invention concerns a process for producing optimized melt-textured volume samples based on the high temperature superconductor YBa2 Cu3 O7 (YBCO) for use in contact-free self-stabilizing magnetic bearings. The object o... | 07/10/2001 |
| 6008162 | Production method of oxide superconductive film The present invention can provide an oxide superconductive film with a smooth surface and at homogeneous thickness on a simple substrate structure at a high film formation rate. In a liquid phase epitaxial growth method for producing an ReBa2 C... | 12/28/1999 |
| 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 |
| 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 |
| 5856277 | Surface texturing of superconductors by controlled oxygen pressure A method of manufacture of a textured layer of a high temperature superconductor on a substrate. The method involves providing an untextured high temperature superconductor material having a characteristic ambient pressure peritectic melting point, heatin... | 01/05/1999 |
| 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 |
| 5846910 | Method for production of Bi -2212 superconducting tape material This invention concerns a method for the production of an oxide superconducting tape material having a composition of Bi2 Sr2 CaCu2 O8, which method consists essentially of forming a sandwich structure comprisin... | 12/08/1998 |
| 5789347 | Method of producing high-temperature superconducting materials A method of producing ceramic superconducting materials such as YBa2 Cu3 Ox includes blending together starting materials for the superconducting material. The blend of starting materials are formed into a layer and sinter... | 08/04/1998 |
| 5736489 | Method of producing melt-processed polycrystalline YBa2 Cu3 O.sub . A method is provided for producing polycrystalline superconductor materials which utilizes a zdense and non-polluting 211 substrate which has been pre-sintered prior to melt processing with a 123 superconducting material. The resulting melt-processed mate... | 04/07/1998 |
| 5716909 | Process for increasing the pinning force of superconducting Bi-Sr-Ca-Cu-O ceramic moldings Process for increasing the pinning force of superconducting Bi-Sr-Ca-Cu-O ceramic moldings, which comprises heating the pure-phase 2212 phase of a Bi-Sr-Ca-Cu-O ceramic molding under pure oxygen or an oxygen-containing gas for from 1 to 40 minutes to a te... | 02/10/1998 |
| 5652192 | Catalyst material and method of making The material of the present invention is a mixture of catalytically active material and carrier materials, which may be catalytically active themselves. Hence, the material of the present invention provides a catalyst particle that has catalytically activ... | 07/29/1997 |
| 5627142 | Method of producing composite metal oxide material A composite material is disclosed which includes a substrate, an oriented film provided on a surface of the substrate and formed of a crystal of a Y123 metal oxide of the formula LnBa2 Cu3 Oy wherein Ln stands for Y or an ... | 05/06/1997 |
| 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 |
| 5583094 | "Method for preparing hollow oxide superconductors" A tubular metal pipe and a solidified melt of a precursor of oxide superconducting material which is placed in contact with the metal pipe are subjected to heat treatment in an oxidizing atmosphere and at a temperature above the partial fusion temperature... | 12/10/1996 |
| 5550102 | Superconductor and method of manufacturing the same A method of manufacturing a superconductor is carried out by first preparing a material composed of Y1 Ba2 Cu3 O7. This material is heated/molten in a platinum crucible. A melt thus obtained is drawn out from a ... | 08/27/1996 |
| 5545613 | Preparation 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... | 08/13/1996 |
| 5545610 | Oxide-based superconductor, a process for preparing the same and a wire material of comprising the same An oxide-based superconductor ccmprising Tl, Pb, Sr, Ca and Cu or Tl, Pb, Ba, Sr, Ca and Cu, prepared by subjecting a low melting point composition comprising the superconductor-constituting elements and a solid composition comprising the superconductor-c... | 08/13/1996 |
| 5541154 | Process for preparing a high-TC superconductor as a precursor material for the oxide-powder-in-tube method (OPIT) Process for preparing a high-Tc superconductor as a precursor material for the oxide-powder-in-tube method (OPIT). The present invention relates to a process for preparing a high-Tc superconductor as a precursor material for the oxid... | 07/30/1996 |
| 5523285 | Rapid formation of phase-clean 110 K (Bi-2223) powders derived via freeze-drying process A process for the preparation of amorphous precursor powders for Pb-doped Bi2 Sr2 Ca2 Cu3 Ox (2223) includes a freeze-drying process incorporating a splat-freezing step. The process generally includes... | 06/04/1996 |
| 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 |
| 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 |
| 5403818 | Ceramic superconductor 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 ... | 04/04/1995 |
| 5385882 | Process for preparing a thallium-containing superconductor There is disclosed a process for preparing a thallium-containing superconductive composition. In the first step of the process, a mixture of an inorganic salt (such as potassium chloride) and a powder compositon is provided; the powder composition contain... | 01/31/1995 |
| 5348937 | Aligned bismuth, strontium, calcium cuprate coatings on polycrystalline substrates An article comprises an oriented thick film superconducting coating on a polycrystalline substrate. The coating includes at least two highly oriented platelet components of Bia Srb Cac Cud Ox (BSCCO) where... | 09/20/1994 |
| 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 |
| 5314869 | Method for forming single phase, single crystalline 2122 BCSCO superconductor thin films by liquid phase epitaxy A substantially single phase, single crystalline, highly epitaxial film of Bi2 CaSr2 Cu2 O8 superconductor which has a Tc (zero resistance) of 83 K is provided on a lattice-matched substrate with no i... | 05/24/1994 |
| 5312804 | Method of fabricating a superconductive flexible ceramic conductor having a high critical temperature A method of fabricating a superconductive flexible conductor having a high critical temperature in which method a deposit of superconductive ceramic is applied to a metal tape of thickness lying in the range 0.1 mm to 1 mm, wherein: the deposit of thickne... | 05/17/1994 |
| 5306704 | Efficient incorporation of silver to improve superconducting fibers An improved method for the efficient incorporation of a metal such as silver in a superconducting material includes blending the metal with a high temperature superconductor or precursor powder and consolidating the same into pellets. The pellets are char... | 04/26/1994 |
| 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 |
| 5284825 | Contaminant diffusion barrier for a ceramic oxide superconductor coating on a substrate A superconducting structure is provided comprising a substrate, a superconductor coating supported by the substrate and a diffusion barrier positioned between the superconductor coating and the substrate to inhibit diffusion of contaminants from the subst... | 02/08/1994 |
| 5278137 | YBa2 Cu3 O7-y type oxide superconductive material containing dispersed Y2 BaCuO5 phase and having high critical current density 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... | 01/11/1994 |
| 5276011 | Method of manufacturing a component of the tape or filament kind out of a material based on a superconducting oxide having a high critical temperature, and a component obtained thereby A method of manufacturing a component of the tape or filament kind out of a material based on a superconducting oxide having a high critical temperature, wherein said material is formed while it is in the vitreous state, the method being characterized by ... | 01/04/1994 |
| 5272131 | Method for forming aligned superconducting Bi-Sr-Ca-Cu-O A process is provided for forming an oriented thick film superconducting coating on a polycrystalline substrate. The coating includes at least two highly oriented compounds of Bia Srb Cac Cud Ox (BSCCO) wh... | 12/21/1993 |
| 5270296 | High critical temperature superconducting wire with radially grown crystallites A method of making a composite high-temperature superconducting wire in which a layer of a superconductive oxide is coated onto a refractory core by melting a zone of the layer uniformly all around the core as the core is drawn through the focus of a refl... | 12/14/1993 |
| 5270292 | Method for the formation of high temperature semiconductors Improved superconducting materials with high maximum magnetization, remanent magnetization and diamagnetic susceptibility can be made by enriching the base Y-Ba-Cu-O composition, Y:Ba:Cu=1:2:3, with respect to Y, or adding other trivalent or pentavalent e... | 12/14/1993 |
| 5262391 | Oxide superconductor 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... | 11/16/1993 |
| 5248660 | Process of preparing yttrium based superconductors A process of preparing a yttrium based superconductor including partial melting a body of YBa2 Cu3 Oy compound which is stacked on a Y2 BaCuO5 plate, to produce a liquid phase, BaCu2.CuO wh... | 09/28/1993 |
| 5236892 | Method for manufacturing oxide superconducting article A method for manufacturing a superconducting article, comprising the steps of: forming a first layer comprising a mixture of LnBa.sub.2 Cu.sub.3 O.sub.x and Ln.sub.2 BaC oxid, on the surface of a substrate, said Ln being an optional rare earth element; th... | 08/17/1993 |
| 5232909 | Method for manufacturing superconducting ceramics elongated body A superconducting ceramics elongated body comprising a flexible ceramics elongated substrate and an oxide ceramics superconducting layer formed at least on a part of the surface of the ceramics elongated substrate to longitudinally extend along the cerami... | 08/03/1993 |
| 5232901 | Method of producing superconducting ceramic wire having protective metal coating thereon There is provided a method of producing a protective metal coated or covered superconducting ceramic wire by applying a finely pulverized protective metal-dispersed polymeric resin onto the surface of a glass wire in amorphous state of metal oxides capabl... | 08/03/1993 |
