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Class 505/482 - Treating with high pressure oxygen


Subclass of Class 505 - Superconductor technology: apparatus, material, process
Definition: Process wherein oxygen or an oxygen enriched gas is utilized
No. of patents: 32
Last issue date: 04/15/2008


NumberTitleIssue Date
7358212Method for producing multinary metal oxide powders in a pulsed reactor
The invention relates to a method for producing a one-part, multinary metal oxide power which is suitable for producing high-temperature superconductors. To this end, a mixture of the corresponding metal salts and/or metal oxides and/or metals in the requisite stoic...
04/15/2008
6993823Method of manufacturing oxide superconducting wire
The inventive method of manufacturing an oxide superconducting wire comprises a step (S1, S2) of preparing a wire formed by covering raw material powder of an oxide superconductor with a metal and a step (S4, S6) of heat-treating the wire...
02/07/2006
6797313Superconductor methods and reactors
Superconductor reactors, methods and systems are disclosed. ...
09/28/2004
6436876Processing of oxide superconductors
A method for preparing a BSCCO-2223 oxide superconducting article includes annealing an oxide superconductor article comprised of BSCCO-2223 oxide superconductor at a temperature selected from the range of about 500° C.ࣘTࣘ787° C. and an annealing at...
08/20/2002
6207619Oxidic superconductor with a bismuth phase of the 2223 type and method of manufacture thereof
A superconductor with the Bi 2223 high Tc phase is manufactured by mulitply deforming and annealing a structure composed of a material matrix and at least one core of a fabricated material of the superconductor material. At least during an init...
03/27/2001
6153561Method for oxygenating oxide superconductive materials
The present invention includes a method of oxygenating an oxide superconductive material having an initial oxygen content, the method comprising the steps: (a) obtaining an oxide superconductive material, the material having an initial oxygen content; and...
11/28/2000
6121207Metal oxide materials
The invention provides certain novel metal oxide materials which exhibit superconductivity at elevated temperatures and/or which are useful in electrode, electrolyte, cell and sensor applications, or as electrochemical catalysts. The metal oxide materials...
09/19/2000
5952268Superconductor 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
5883052Preparation of superconducting oxides and oxide-metal composites
A method of preparing a superconducting oxide by combining the matalic elements of the oxide to form an alloy, folled by oxidation of the alloy to form the oxide. Superconducting oxide-metal composites are prepared in which a noble metal phase intimately ...
03/16/1999
5840660Method of preparing bismuth oxide superconductor
Raw material powder for a bismuth oxide superconductor is molded with addition of an organic vehicle, and the molded raw material is heat treated for removing the organic vehicle before the molded raw material is metal-coated. In this heat treatment, cond...
11/24/1998
5801126Process for prorducing thallium-containing high-Tc superconductors in flowing gas atmospheres
The process for producing high-Tc superconductors containing thallium, calcium, barium and copper, possibly also lead and/or strontium, provides for a thallium-free precursor to be produced in a first reaction step and this to be then mechanica...
09/01/1998
5798318Reaction for high performance (Bi,Pb)2 Sr2 Ca2 Cu3 Oy composites
The present invention provides a (Bi,Pb)SCCO-2223 oxide superconductor composite which exhibits improved critical current density and critical current density retention in the presence of magnetic fields. Retention of critical current density in 0.1 T fie...
08/25/1998
5716907Rock-salt/infinite layer chlorine-containing oxide superconductor and manufacturing method of the same
The present invention is an oxide superconductor containing alkaline earth metal M (where M is at least one element of Ba, Sr, and Ca) and having a crystalline structure in which a portion based on two rock-salt structures including the alkaline earth met...
02/10/1998
5705457Oxide superconductor and method for manufacturing the same
The present invention provides an oxide superconductor which is expressed in the composition formula (Pb1-x-y Mx (A1)y)(A2)2 (A3)n-1 (Cu)n (O)2n+3+z (wherein 0ࣘ0.6, 0ࣘyࣘ0.6, x+y...
01/06/1998
5677265Process 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
5670457Oxide superconductor and method of producing same
An oxide superconductor composed of Cu, O and at least one of Ba, Sr and Ca and including alternately arranged at least one oxygen-deficient perovskite structure section and at least one infinite layer structure section, wherein the perovskite structure s...
09/23/1997
5612291Superconductive device for helping shield magnetic field and manufacturing method therefor
A superconductive device for helping shield magnetic field comprises at least two members; a layer containing superconductive oxide over each of said members; means for connecting said members to form a substrate; and means for connecting said layers cont...
03/18/1997
5492886Method 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
5472527High 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
5430008Method 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
5374611Preparation and composition of superconducting copper oxides based on Ga-O layers
A high temperature superconducting material with the general formula GaSr2 Ln1-x MxCu2 O7&#b1;w wherein Ln is selected from the group consisting of La, Ce, Pt, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb and Y and M is s...
12/20/1994
5350738Method of manufacturing an oxide superconductor film
The present invention provides a method of manufacturing a high quality oxide superconductor film capable of controlling the film-forming rate and the film composition easily and forming the superconductor film safely and economically, over a wide region ...
09/27/1994
5348935Highly oxidized superconductors
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...
09/20/1994
5334579Process 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
5240473Process for restoring permeance of an oxygen-permeable ion transport membrane utilized to recover oxygen from an oxygen-containing gaseous mixture
This invention relates to a process for restoring permeance of an oxygen-permeable ion transport membrane utilized to recover oxygen from an oxygen-containing gaseous mixture which contains water, carbon dioxide or volatile hydrocarbons. The process utili...
08/31/1993
5232904Materials having a zero resistance transition temperature above 200 K and method for maintaining the zero resistance property
This invention is directed to a method for making multiphase copper oxide based materials which have a phase having a zero resistance transition temperature above about 200K. The method comprises subjecting a copper oxide based material precursor to an ox...
08/03/1993
5155092Ceramic superconducting composition and process and apparatus for preparing thereof
In a ceramic superconducting composition, Ag20 is added thereto in an amount of 0.1 wt. % to 70 wt. % per mole of LaBa2Cu3O3-δ. The critical current density of the ceramic superconducting composition is affected by heat treatment conditions. The critical...
10/13/1992
5140000Metal oxide 247 superconducting materials
The present invention comprises novel oxide materials exhibiting bulk superconductivity up to and exceeding 85K and processes for their synthesis. The oxides are within the formula Ra Bab Cuc Od wherein 1.9
08/18/1992
5032569Ceramic high temperature superconductor in bulk form, and method of manufacturing the same
A novel ceramic high temperature superconductor which has at least one phase with the composition (SE)Ba2 Cu4-x O8&#b1;y, where SE is a trivalent rare earth atom, xࣘ0.5, and yࣘ1. The novel superconductor is distinguish...
07/16/1991
5024992Preparation of highly oxidized RBa2 Cu4 O8 superconductors
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...
06/18/1991
4952555Superconducting material Ba1-x (Y1-w γw)CuOz (γ=Ti, Zr, Hf, Si, Ge, Sn, Pb, or Mn) and a process for preparing the same
Superconducting material of oxide which have a composition represented by the general formula: {댑-x (댡-w γw)x }δy &3xb5;z particularly, {Ba1-x (Y1-w γ...
08/28/1990
 
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